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2026-03-27i2c: imx: ensure no clock is generated after last readStefan Eichenberger
When reading from the I2DR register, right after releasing the bus by clearing MSTA and MTX, the I2C controller might still generate an additional clock cycle which can cause devices to misbehave. Ensure to only read from I2DR after the bus is not busy anymore. Because this requires polling, the read of the last byte is moved outside of the interrupt handler. An example for such a failing transfer is this: i2ctransfer -y -a 0 w1@0x00 0x02 r1 Error: Sending messages failed: Connection timed out It does not happen with every device because not all devices react to the additional clock cycle. Fixes: 5f5c2d4579ca ("i2c: imx: prevent rescheduling in non dma mode") Cc: stable@vger.kernel.org # v6.13+ Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20260218150940.131354-3-eichest@gmail.com
2026-03-27i2c: imx: fix i2c issue when reading multiple messagesStefan Eichenberger
When reading multiple messages, meaning a repeated start is required, polling the bus busy bit must be avoided. This must only be done for the last message. Otherwise, the driver will timeout. Here an example of such a sequence that fails with an error: i2ctransfer -y -a 0 w1@0x00 0x02 r1 w1@0x00 0x02 r1 Error: Sending messages failed: Connection timed out Fixes: 5f5c2d4579ca ("i2c: imx: prevent rescheduling in non dma mode") Cc: stable@vger.kernel.org # v6.13+ Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> Link: https://lore.kernel.org/r/20260218150940.131354-2-eichest@gmail.com
2026-03-27net: ti: icssg-prueth: fix missing data copy and wrong recycle in ZC RX dispatchDavid Carlier
emac_dispatch_skb_zc() allocates a new skb via napi_alloc_skb() but never copies the packet data from the XDP buffer into it. The skb is passed up the stack containing uninitialized heap memory instead of the actual received packet, leaking kernel heap contents to userspace. Copy the received packet data from the XDP buffer into the skb using skb_copy_to_linear_data(). Additionally, remove the skb_mark_for_recycle() call since the skb is backed by the NAPI page frag allocator, not page_pool. Marking a non-page_pool skb for recycle causes the free path to return pages to a page_pool that does not own them, corrupting page_pool state. The non-ZC path (emac_rx_packet) does not have these issues because it uses napi_build_skb() to wrap the existing page_pool page directly, requiring no copy, and correctly marks for recycle since the page comes from page_pool_dev_alloc_pages(). Fixes: 7a64bb388df3 ("net: ti: icssg-prueth: Add AF_XDP zero copy for RX") Signed-off-by: David Carlier <devnexen@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2026-03-27tg3: Fix race for querying speed/duplexThomas Bogendoerfer
When driver signals carrier up via netif_carrier_on() its internal link_up state isn't updated immediately. This leads to inconsistent speed/duplex in /proc/net/bonding/bondX where the speed and duplex is shown as unknown while ethtool shows correct values. Fix this by using netif_carrier_ok() for link checking in get_ksettings function. Fixes: 84421b99cedc ("tg3: Update link_up flag for phylib devices") Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2026-03-27platform/x86/amd: pmc: Add Thinkpad L14 Gen3 to quirk_s2idle_bugMario Limonciello
This platform is a similar vintage of platforms that had a BIOS bug leading to a 10s delay at resume from s0i3. Add a quirk for it. Reported-by: Imrane <ihalim.me@gmail.com> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221273 Tested-by: Imrane <ihalim.me@gmail.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://patch.msgid.link/20260324211647.357924-1-mario.limonciello@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-03-27platform/x86/intel-uncore-freq: Increase minor versionSrinivas Pandruvada
The current implementation doesn't require any changes to support minor version 3, hence increment it to avoid "Unsupported minor version:3" message. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20260325193158.3417382-2-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-03-27platform/x86: ISST: Increase minor versionSrinivas Pandruvada
The current implementation doesn't require any changes to support minor version 3, hence increment it to avoid "Unsupported minor version:3" message. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://patch.msgid.link/20260325193158.3417382-1-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-03-27platform/x86/intel-uncore-freq: Handle autonomous UFS status bitSrinivas Pandruvada
When the AUTONOMOUS_UFS_DISABLED bit is set in the header, the ELC (Efficiency Latency Control) feature is non-functional. Hence, return error for read or write to ELC attributes. Fixes: bb516dc79c4a ("platform/x86/intel-uncore-freq: Add support for efficiency latency control") Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20260325192909.3417322-1-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-03-27platform/x86: ISST: Reset core count to 0Srinivas Pandruvada
Based on feature revision, number of buckets can be less than the TRL_MAX_BUCKETS. In that case core counts in the remaining buckets can be set to some invalid values. Hence reset core count to 0 for all buckets before assigning correct values. Fixes: 885d1c2a30b7 ("platform/x86: ISST: Support SST-TF revision 2") Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20260325192638.3417281-1-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-03-27HID: quirks: add HID_QUIRK_ALWAYS_POLL for 8BitDo Pro 3leo vriska
According to a mailing list report [1], this controller's predecessor has the same issue. However, it uses the xpad driver instead of HID, so this quirk wouldn't apply. [1]: https://lore.kernel.org/linux-input/unufo3$det$1@ciao.gmane.io/ Signed-off-by: leo vriska <leo@60228.dev> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-03-27HID: roccat: fix use-after-free in roccat_report_eventBenoît Sevens
roccat_report_event() iterates over the device->readers list without holding the readers_lock. This allows a concurrent roccat_release() to remove and free a reader while it's still being accessed, leading to a use-after-free. Protect the readers list traversal with the readers_lock mutex. Signed-off-by: Benoît Sevens <bsevens@google.com> Reviewed-by: Silvan Jegen <s.jegen@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-03-27auxdisplay: line-display: fix NULL dereference in linedisp_releaseGuangshuo Li
linedisp_release() currently retrieves the enclosing struct linedisp via to_linedisp(). That lookup depends on the attachment list, but the attachment may already have been removed before put_device() invokes the release callback. This can happen in linedisp_unregister(), and can also be reached from some linedisp_register() error paths. In that case, to_linedisp() returns NULL and linedisp_release() dereferences it while freeing the display resources. The struct device released here is the embedded linedisp->dev used by linedisp_register(), so retrieve the enclosing object directly with container_of() instead. Fixes: 66c93809487e ("auxdisplay: linedisp: encapsulate container_of usage within to_linedisp") Cc: stable@vger.kernel.org Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2026-03-27iommupt/amdv1: mark amdv1pt_install_leaf_entry as __always_inlineSherry Yang
After enabling CONFIG_GCOV_KERNEL and CONFIG_GCOV_PROFILE_ALL, following build failure is observed under GCC 14.2.1: In function 'amdv1pt_install_leaf_entry', inlined from '__do_map_single_page' at drivers/iommu/generic_pt/fmt/../iommu_pt.h:650:3, inlined from '__map_single_page0' at drivers/iommu/generic_pt/fmt/../iommu_pt.h:661:1, inlined from 'pt_descend' at drivers/iommu/generic_pt/fmt/../pt_iter.h:391:9, inlined from '__do_map_single_page' at drivers/iommu/generic_pt/fmt/../iommu_pt.h:657:10, inlined from '__map_single_page1.constprop' at drivers/iommu/generic_pt/fmt/../iommu_pt.h:661:1: ././include/linux/compiler_types.h:706:45: error: call to '__compiletime_assert_71' declared with attribute error: FIELD_PREP: value too large for the field 706 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) | ...... drivers/iommu/generic_pt/fmt/amdv1.h:220:26: note: in expansion of macro 'FIELD_PREP' 220 | FIELD_PREP(AMDV1PT_FMT_OA, | ^~~~~~~~~~ In the path '__do_map_single_page()', level 0 always invokes 'pt_install_leaf_entry(&pts, map->oa, PAGE_SHIFT, …)'. At runtime that lands in the 'if (oasz_lg2 == isz_lg2)' arm of 'amdv1pt_install_leaf_entry()'; the contiguous-only 'else' block is unreachable for 4 KiB pages. With CONFIG_GCOV_KERNEL + CONFIG_GCOV_PROFILE_ALL, the extra instrumentation changes GCC's inlining so that the "dead" 'else' branch still gets instantiated. The compiler constant-folds the contiguous OA expression, runs the 'FIELD_PREP()' compile-time check, and produces: FIELD_PREP: value too large for the field gcov-enabled builds therefore fail even though the code path never executes. Fix this by marking amdv1pt_install_leaf_entry as __always_inline. Fixes: dcd6a011a8d5 ("iommupt: Add map_pages op") Suggested-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Sherry Yang <sherry.yang@oracle.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2026-03-27iommupt: Fix short gather if the unmap goes into a large mappingJason Gunthorpe
unmap has the odd behavior that it can unmap more than requested if the ending point lands within the middle of a large or contiguous IOPTE. In this case the gather should flush everything unmapped which can be larger than what was requested to be unmapped. The gather was only flushing the range requested to be unmapped, not extending to the extra range, resulting in a short invalidation if the caller hits this special condition. This was found by the new invalidation/gather test I am adding in preparation for ARMv8. Claude deduced the root cause. As far as I remember nothing relies on unmapping a large entry, so this is likely not a triggerable bug. Cc: stable@vger.kernel.org Fixes: 7c53f4238aa8 ("iommupt: Add unmap_pages op") Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Samiullah Khawaja <skhawaja@google.com> Reviewed-by: Vasant Hegde <vasant.hegde@amd.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2026-03-27Merge tag 'drm-xe-fixes-2026-03-26' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes - Fix UAF in SRIOV migration restore (Winiarski) - Updates to HW W/a (Roper) - VMBind remap fix (Auld) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patch.msgid.link/acUgq2q2DrCUzFql@intel.com
2026-03-27Merge tag 'drm-misc-fixes-2026-03-26' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes A page mapping fix for shmem fault handler, a power-off fix for ivpu, a GFP_* flag fix for syncobj, and a MAINTAINERS update. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patch.msgid.link/20260326-lush-cuddly-limpet-ab2aa9@houat
2026-03-27Merge tag 'drm-intel-fixes-2026-03-26' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes - DP tunnel error handling fix - Spurious GMBUS timeout fix - Unlink NV12 planes earlier - Order OP vs. timeout correctly in __wait_for() Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patch.msgid.link/acTdjAoOGkzl3dcc@jlahtine-mobl
2026-03-26net: enetc: do not access non-existent registers on pseudo MACWei Fang
The ENETC4_PM_IEVENT and ENETC4_PM_CMD_CFG registers do not exist on the ENETC pseudo MAC, so the driver should prevent from accessing them. Fixes: 5175c1e4adca ("net: enetc: add basic support for the ENETC with pseudo MAC for i.MX94") Signed-off-by: Wei Fang <wei.fang@nxp.com> Tested-by: Claudiu Manoil <claudiu.manoil@nxp.com> Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260324062121.2745033-4-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-03-26net: enetc: add graceful stop to safely reinitialize the TX RingWei Fang
For ENETC v4, the PIR and CIR will be reset if they are not equal when reinitializing the TX BD ring. However, resetting the PIR and CIR alone is insufficient. When a link-down event occurs while the TX BD ring is transmitting frames, subsequent reinitialization of the TX BD ring may cause it to malfunction. For example, the below steps can reproduce the problem. 1. Unplug the cable when the TX BD ring is busy transmitting frames. 2. Disable the network interface (ifconfig eth0 down). 3. Re-enable the network interface (ifconfig eth0 up). 4. Plug in the cable, the TX BD ring may fail to transmit packets. When the link-down event occurs, enetc4_pl_mac_link_down() only clears PMa_COMMAND_CONFIG[TX_EN] to disable MAC transmit data path. It doesn't set PORT[TXDIS] to 1 to flush the TX BD ring. Therefore, reinitializing the TX BD ring at this point is unsafe. To safely reinitialize the TX BD ring after a link-down event, we checked with the NETC IP team, a proper Ethernet MAC graceful stop is necessary. Therefore, add the Ethernet MAC graceful stop to the link-down event handler enetc4_pl_mac_link_down(). Fixes: 99100d0d9922 ("net: enetc: add preliminary support for i.MX95 ENETC PF") Signed-off-by: Wei Fang <wei.fang@nxp.com> Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260324062121.2745033-3-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-03-26net: enetc: reset PIR and CIR if they are not equal when initializing TX ringWei Fang
Currently the driver does not reset the producer index register (PIR) and consumer index register (CIR) when initializing a TX BD ring. The driver only reads the PIR and CIR and initializes the software indexes. If the TX BD ring is reinitialized when it still contains unsent frames, its PIR and CIR will not be equal after the reinitialization. However, the BDs between CIR and PIR have been freed and become invalid and this can lead to a hardware malfunction, causing the TX BD ring will not work properly. For ENETC v4, it supports software to set the PIR and CIR, so the driver can reset these two registers if they are not equal when reinitializing the TX BD ring. Therefore, add this solution for ENETC v4. Note that this patch does not work for ENETC v1 because it does not support software to set the PIR and CIR. Fixes: 99100d0d9922 ("net: enetc: add preliminary support for i.MX95 ENETC PF") Signed-off-by: Wei Fang <wei.fang@nxp.com> Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260324062121.2745033-2-wei.fang@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-03-26net: fec: fix the PTP periodic output sysfs interfaceBuday Csaba
When the PPS channel configuration was implemented, the channel index for the periodic outputs was configured as the hardware channel number. The sysfs interface uses a logical channel index, and rejects numbers greater than `n_per_out` (see period_store() in ptp_sysfs.c). That property was left at 1, since the driver implements channel selection, not simultaneous operation of multiple PTP hardware timer channels. A second check in fec_ptp_enable() returns -EOPNOTSUPP when the two channel numbers disagree, making channels 1..3 unusable from sysfs. Fix by removing this redundant check in the FEC PTP driver. Fixes: 566c2d83887f ("net: fec: make PPS channel configurable") Signed-off-by: Buday Csaba <buday.csaba@prolan.hu> Link: https://patch.msgid.link/8ec2afe88423c2231f9cf8044d212ce57846670e.1774359059.git.buday.csaba@prolan.hu Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-03-26net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabledSven Eckelmann (Plasma Cloud)
If the gmac0 is disabled, the precheck for a valid ingress device will cause a NULL pointer deref and crash the system. This happens because eth->netdev[0] will be NULL but the code will directly try to access netdev_ops. Instead of just checking for the first net_device, it must be checked if any of the mtk_eth net_devices is matching the netdev_ops of the ingress device. Cc: stable@vger.kernel.org Fixes: 73cfd947dbdb ("net: ethernet: mtk_eth_soc: ppe: prevent ppe update for non-mtk devices") Signed-off-by: Sven Eckelmann (Plasma Cloud) <se@simonwunderlich.de> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260324-wed-crash-gmac0-disabled-v1-1-3bc388aee565@simonwunderlich.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-03-26net: mana: Fix RX skb truesize accountingDipayaan Roy
MANA passes rxq->alloc_size to napi_build_skb() for all RX buffers. It is correct for fragment-backed RX buffers, where alloc_size matches the actual backing allocation used for each packet buffer. However, in the non-fragment RX path mana allocates a full page, or a higher-order page, per RX buffer. In that case alloc_size only reflects the usable packet area and not the actual backing memory. This causes napi_build_skb() to underestimate the skb backing allocation in the single-buffer RX path, so skb->truesize is derived from a value smaller than the real RX buffer allocation. Fix this by updating alloc_size in the non-fragment RX path to the actual backing allocation size before it is passed to napi_build_skb(). Fixes: 730ff06d3f5c ("net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency.") Signed-off-by: Dipayaan Roy <dipayanroy@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/acLUhLpLum6qrD/N@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-03-26Merge tag 'wireless-2026-03-26' of ↵Jakub Kicinski
https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless Johannes Berg says: ==================== Couple more fixes: - virt_wifi: remove SET_NETDEV_DEV to avoid UAF on teardown - iwlwifi: - fix (some) devices that don't have 6 GHz (WiFi6E) - fix potential OOB read of firmware notification - set WiFi generation for firmware to avoid packet drops - fix multi-link scan timing - wilc1000: fix integer overflow - ath11k/ath12k: fix TID during A-MPDU session teardown - wl1251: don't trust firmware TX status response index * tag 'wireless-2026-03-26' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: wifi: virt_wifi: remove SET_NETDEV_DEV to avoid use-after-free wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler() wifi: wl1251: validate packet IDs before indexing tx_frames wifi: wilc1000: fix u8 overflow in SSID scan buffer size calculation wifi: ath12k: Pass the correct value of each TID during a stop AMPDU session wifi: ath11k: Pass the correct value of each TID during a stop AMPDU session wifi: iwlwifi: mld: correctly set wifi generation data wifi: iwlwifi: mvm: don't send a 6E related command when not supported wifi: iwlwifi: mld: Fix MLO scan timing ==================== Link: https://patch.msgid.link/20260326093329.77815-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-03-26Merge tag 'pm-7.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: "These fix two cpufreq issues, one in the core and one in the conservative governor, and two issues related to system sleep: - Restore the cpufreq core behavior changed inadvertently during the 6.19 development cycle to call cpufreq_frequency_table_cpuinfo() for cpufreq policies getting re-initialized which ensures that policy->max and policy->cpuinfo_max_freq will be valid going forward (Viresh Kumar) - Adjust the cached requested frequency in the conservative cpufreq governor on policy limits changes to prevent it from becoming stale in some cases (Viresh Kumar) - Prevent pm_restore_gfp_mask() from triggering a WARN_ON() in some code paths in which it is legitimately called without invoking pm_restrict_gfp_mask() previously (Youngjun Park) - Update snapshot_write_finalize() to take trailing zero pages into account properly which prevents user space restore from failing subsequently in some cases (Alberto Garcia)" * tag 'pm-7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: sleep: Drop spurious WARN_ON() from pm_restore_gfp_mask() PM: hibernate: Drain trailing zero pages on userspace restore cpufreq: conservative: Reset requested_freq on limits change cpufreq: Don't skip cpufreq_frequency_table_cpuinfo()
2026-03-26Merge tag 'thermal-7.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull thermal control fix from Rafael Wysocki: "This prevents the int340x thermal driver from taking the power slider offset parameter into account incorrectly in some cases (Srinivas Pandruvada)" * tag 'thermal-7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal: intel: int340x: soc_slider: Set offset only for balanced mode
2026-03-26Merge tag 'acpi-7.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI support fix from Rafael Wysocki: "Prevent use-after-free from occurring on reduced-hardware ACPI platforms when -EPROBE_DEFER is returned by ec_install_handlers() during ACPI EC driver initialization (Weiming Shi)" * tag 'acpi-7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: EC: clean up handlers on probe failure in acpi_ec_setup()
2026-03-26Merge tag 'net-7.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Paolo Abeni: "Including fixes from Bluetooth, CAN, IPsec and Netfilter. Notably, this includes the fix for the Bluetooth regression that you were notified about. I'm not aware of any other pending regressions. Current release - regressions: - bluetooth: - fix stack-out-of-bounds read in l2cap_ecred_conn_req - fix regressions caused by reusing ident - netfilter: revisit array resize logic - eth: ice: set max queues in alloc_etherdev_mqs() Previous releases - regressions: - core: correctly handle tunneled traffic on IPV6_CSUM GSO fallback - bluetooth: - fix dangling pointer on mgmt_add_adv_patterns_monitor_complete - fix deadlock in l2cap_conn_del() - sched: codel: fix stale state for empty flows in fq_codel - ipv6: remove permanent routes from tb6_gc_hlist when all exceptions expire. - xfrm: fix skb_put() panic on non-linear skb during reassembly - openvswitch: - avoid releasing netdev before teardown completes - validate MPLS set/set_masked payload length - eth: iavf: fix out-of-bounds writes in iavf_get_ethtool_stats() Previous releases - always broken: - bluetooth: fix null-ptr-deref on l2cap_sock_ready_cb - udp: fix wildcard bind conflict check when using hash2 - netfilter: fix use of uninitialized rtp_addr in process_sdp - tls: Purge async_hold in tls_decrypt_async_wait() - xfrm: - prevent policy_hthresh.work from racing with netns teardown - fix skb leak with espintcp and async crypto - smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer - can: - add missing error handling to call can_ctrlmode_changelink() - fix OOB heap access in cgw_csum_crc8_rel() - eth: - mana: fix use-after-free in add_adev() error path - virtio-net: fix for VIRTIO_NET_F_GUEST_HDRLEN - bcmasp: fix double free of WoL irq" * tag 'net-7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (90 commits) net: macb: use the current queue number for stats netfilter: ctnetlink: use netlink policy range checks netfilter: nf_conntrack_sip: fix use of uninitialized rtp_addr in process_sdp netfilter: nf_conntrack_expect: skip expectations in other netns via proc netfilter: nf_conntrack_expect: store netns and zone in expectation netfilter: ctnetlink: ensure safe access to master conntrack netfilter: nf_conntrack_expect: use expect->helper netfilter: nf_conntrack_expect: honor expectation helper field netfilter: nft_set_rbtree: revisit array resize logic netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check() netfilter: nfnetlink_log: fix uninitialized padding leak in NFULA_PAYLOAD tls: Purge async_hold in tls_decrypt_async_wait() selftests: netfilter: nft_concat_range.sh: add check for flush+reload bug netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry Bluetooth: btusb: clamp SCO altsetting table indices Bluetooth: L2CAP: Fix ERTM re-init and zero pdu_len infinite loop Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del() Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock Bluetooth: L2CAP: Fix send LE flow credits in ACL link net: mana: fix use-after-free in add_adev() error path ...
2026-03-26Merge tag 'pinctrl-v7.0-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: - Implement .get_direction() in the spmi-gpio gpio_chip Recent changes makes this start to print warnings and it's not nice, let's just fix it - Clamp the return value of gpio_get() in the Renesas RZA1 driver - Add the GPIO_GENERIC dependency to the STM32 HDP driver - Modify the Mediatek driver to accept devices that do not use external interrupts (EINT) at all - Fix flag propagation in the Sunxi driver, so that we can fix an issue with uninitialized pins in a follow-up patch using said flags * tag 'pinctrl-v7.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: sunxi: fix gpiochip_lock_as_irq() failure when pinmux is unknown pinctrl: sunxi: pass down flags to pinctrl routines pinctrl: mediatek: common: Fix probe failure for devices without EINT pinctrl: stm32: fix HDP driver dependency on GPIO_GENERIC pinctrl: renesas: rza1: Normalize return value of gpio_get() pinctrl: qcom: spmi-gpio: implement .get_direction() pinctrl: renesas: rzt2h: Fix invalid wait context pinctrl: renesas: rzt2h: Fix device node leak in rzt2h_gpio_register()
2026-03-26Merge tag 'dma-mapping-7.0-2026-03-25' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux Pull dma-mapping fixes from Marek Szyprowski: "A set of fixes for DMA-mapping subsystem, which resolve false- positive warnings from KMSAN and DMA-API debug (Shigeru Yoshida and Leon Romanovsky) as well as a simple build fix (Miguel Ojeda)" * tag 'dma-mapping-7.0-2026-03-25' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: dma-mapping: add missing `inline` for `dma_free_attrs` mm/hmm: Indicate that HMM requires DMA coherency RDMA/umem: Tell DMA mapping that UMEM requires coherency iommu/dma: add support for DMA_ATTR_REQUIRE_COHERENT attribute dma-direct: prevent SWIOTLB path when DMA_ATTR_REQUIRE_COHERENT is set dma-mapping: Introduce DMA require coherency attribute dma-mapping: Clarify valid conditions for CPU cache line overlap dma-mapping: handle DMA_ATTR_CPU_CACHE_CLEAN in trace output dma-debug: Allow multiple invocations of overlapping entries dma: swiotlb: add KMSAN annotations to swiotlb_bounce()
2026-03-26irqchip/renesas-rzv2h: Fix error path in rzv2h_icu_probe_common()Biju Das
Replace pm_runtime_put() with pm_runtime_put_sync() when irq_domain_create_hierarchy() fails to ensure the device suspends synchronously before devres cleanup disables runtime PM via pm_runtime_disable(). Fixes: 5ec8cabc3b86 ("irqchip/renesas-rzv2h: Use devm_pm_runtime_enable()") Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Link: https://patch.msgid.link/20260323124917.41602-1-biju.das.jz@bp.renesas.com
2026-03-26irqchip/qcom-mpm: Add missing mailbox TX done acknowledgmentJassi Brar
The mbox_client for qcom-mpm sends NULL doorbell messages via mbox_send_message() but never signals TX completion. Set knows_txdone=true and call mbox_client_txdone() after a successful send, matching the pattern used by other Qualcomm mailbox clients (smp2p, smsm, qcom_aoss etc). Fixes: a6199bb514d8a6 "irqchip: Add Qualcomm MPM controller driver" Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20260322171533.608436-1-jassisinghbrar@gmail.com
2026-03-26Merge branch '100GbE' of ↵Paolo Abeni
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue Tony Nguyen says: ==================== For ice: Michal corrects call to alloc_etherdev_mqs() to provide maximum number of queues supported rather than currently allocated number of queues. Petr Oros fixes issues related to some ethtool operations in switchdev mode. For iavf: Kohei Enju corrects number of reported queues for ethtool statistics to absolute max as using current number could race and cause out-of-bounds issues. For idpf: Josh NULLs cdev_info pointer after freeing to prevent possible subsequent improper access. He also defers setting of refillqs value until after allocation to prevent possible NULL pointer dereference. * '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: idpf: only assign num refillqs if allocation was successful idpf: clear stale cdev_info ptr iavf: fix out-of-bounds writes in iavf_get_ethtool_stats() ice: use ice_update_eth_stats() for representor stats ice: fix inverted ready check for VF representors ice: set max queues in alloc_etherdev_mqs() ==================== Link: https://patch.msgid.link/20260323205843.624704-1-anthony.l.nguyen@intel.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-03-26Revert "drm: Fix use-after-free on framebuffers and property blobs when ↵Maarten Lankhorst
calling drm_dev_unplug" This reverts commit 6bee098b91417654703e17eb5c1822c6dfd0c01d. Den 2026-03-25 kl. 22:11, skrev Simona Vetter: > On Wed, Mar 25, 2026 at 10:26:40AM -0700, Guenter Roeck wrote: >> Hi, >> >> On Fri, Mar 13, 2026 at 04:17:27PM +0100, Maarten Lankhorst wrote: >>> When trying to do a rather aggressive test of igt's "xe_module_load >>> --r reload" with a full desktop environment and game running I noticed >>> a few OOPSes when dereferencing freed pointers, related to >>> framebuffers and property blobs after the compositor exits. >>> >>> Solve this by guarding the freeing in drm_file with drm_dev_enter/exit, >>> and immediately put the references from struct drm_file objects during >>> drm_dev_unplug(). >>> >> >> With this patch in v6.18.20, I get the warning backtraces below. >> The backtraces are gone with the patch reverted. > > Yeah, this needs to be reverted, reasoning below. Maarten, can you please > take care of that and feed the revert through the usual channels? I don't > think it's critical enough that we need to fast-track this into drm.git > directly. > > Quoting the patch here again: > >> drivers/gpu/drm/drm_file.c | 5 ++++- >> drivers/gpu/drm/drm_mode_config.c | 9 ++++++--- >> 2 files changed, 10 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/gpu/drm/drm_file.c b/drivers/gpu/drm/drm_file.c >> index ec820686b3021..f52141f842a1f 100644 >> --- a/drivers/gpu/drm/drm_file.c >> +++ b/drivers/gpu/drm/drm_file.c >> @@ -233,6 +233,7 @@ static void drm_events_release(struct drm_file *file_priv) >> void drm_file_free(struct drm_file *file) >> { >> struct drm_device *dev; >> + int idx; >> >> if (!file) >> return; >> @@ -249,9 +250,11 @@ void drm_file_free(struct drm_file *file) >> >> drm_events_release(file); >> >> - if (drm_core_check_feature(dev, DRIVER_MODESET)) { >> + if (drm_core_check_feature(dev, DRIVER_MODESET) && >> + drm_dev_enter(dev, &idx)) { > > This is misplaced for two reasons: > > - Even if we'd want to guarantee that we hold a drm_dev_enter/exit > reference during framebuffer teardown, we'd need to do this > _consistently over all callsites. Not ad-hoc in just one place that a > testcase hits. This also means kerneldoc updates of the relevant hooks > and at least a bunch of acks from other driver people to document the > consensus. > > - More importantly, this is driver responsibilities in general unless we > have extremely good reasons to the contrary. Which means this must be > placed in xe. > >> drm_fb_release(file); >> drm_property_destroy_user_blobs(dev, file); >> + drm_dev_exit(idx); >> } >> >> if (drm_core_check_feature(dev, DRIVER_SYNCOBJ)) >> diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c >> index 84ae8a23a3678..e349418978f79 100644 >> --- a/drivers/gpu/drm/drm_mode_config.c >> +++ b/drivers/gpu/drm/drm_mode_config.c >> @@ -583,10 +583,13 @@ void drm_mode_config_cleanup(struct drm_device *dev) >> */ >> WARN_ON(!list_empty(&dev->mode_config.fb_list)); >> list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { >> - struct drm_printer p = drm_dbg_printer(dev, DRM_UT_KMS, "[leaked fb]"); >> + if (list_empty(&fb->filp_head) || drm_framebuffer_read_refcount(fb) > 1) { >> + struct drm_printer p = drm_dbg_printer(dev, DRM_UT_KMS, "[leaked fb]"); > > This is also wrong: > > - Firstly, it's a completely independent bug, we do not smash two bugfixes > into one patch. > > - Secondly, it's again a driver bug: drm_mode_cleanup must be called when > the last drm_device reference disappears (hence the existence of > drmm_mode_config_init), not when the driver gets unbound. The fact that > this shows up in a callchain from a devres cleanup means the intel > driver gets this wrong (like almost everyone else because historically > we didn't know better). > > If we don't follow this rule, then we get races with this code here > running concurrently with drm_file fb cleanups, which just does not > work. Review pointed that out, but then shrugged it off with a confused > explanation: > > https://lore.kernel.org/all/e61e64c796ccfb17ae673331a3df4b877bf42d82.camel@linux.intel.com/ > > Yes this also means a lot of the other drm_device teardown that drivers > do happens way too early. There is a massive can of worms here of a > magnitude that most likely is much, much bigger than what you can > backport to stable kernels. Hotunplug is _hard_. Back to the drawing board, and fixing it in the intel display driver instead. Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Fixes: 6bee098b9141 ("drm: Fix use-after-free on framebuffers and property blobs when calling drm_dev_unplug") Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Simona Vetter <simona.vetter@ffwll.ch> Signed-off-by: Maarten Lankhorst <dev@lankhorst.se> Link: https://patch.msgid.link/20260326082217.39941-2-dev@lankhorst.se
2026-03-26net: macb: use the current queue number for statsPaolo Valerio
There's a potential mismatch between the memory reserved for statistics and the amount of memory written. gem_get_sset_count() correctly computes the number of stats based on the active queues, whereas gem_get_ethtool_stats() indiscriminately copies data using the maximum number of queues, and in the case the number of active queues is less than MACB_MAX_QUEUES, this results in a OOB write as observed in the KASAN splat. ================================================================== BUG: KASAN: vmalloc-out-of-bounds in gem_get_ethtool_stats+0x54/0x78 [macb] Write of size 760 at addr ffff80008080b000 by task ethtool/1027 CPU: [...] Tainted: [E]=UNSIGNED_MODULE Hardware name: raspberrypi rpi/rpi, BIOS 2025.10 10/01/2025 Call trace: show_stack+0x20/0x38 (C) dump_stack_lvl+0x80/0xf8 print_report+0x384/0x5e0 kasan_report+0xa0/0xf0 kasan_check_range+0xe8/0x190 __asan_memcpy+0x54/0x98 gem_get_ethtool_stats+0x54/0x78 [macb 926c13f3af83b0c6fe64badb21ec87d5e93fcf65] dev_ethtool+0x1220/0x38c0 dev_ioctl+0x4ac/0xca8 sock_do_ioctl+0x170/0x1d8 sock_ioctl+0x484/0x5d8 __arm64_sys_ioctl+0x12c/0x1b8 invoke_syscall+0xd4/0x258 el0_svc_common.constprop.0+0xb4/0x240 do_el0_svc+0x48/0x68 el0_svc+0x40/0xf8 el0t_64_sync_handler+0xa0/0xe8 el0t_64_sync+0x1b0/0x1b8 The buggy address belongs to a 1-page vmalloc region starting at 0xffff80008080b000 allocated at dev_ethtool+0x11f0/0x38c0 The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff00000a333000 pfn:0xa333 flags: 0x7fffc000000000(node=0|zone=0|lastcpupid=0x1ffff) raw: 007fffc000000000 0000000000000000 dead000000000122 0000000000000000 raw: ffff00000a333000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff80008080b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff80008080b100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff80008080b180: 00 00 00 00 00 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffff80008080b200: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffff80008080b280: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ================================================================== Fix it by making sure the copied size only considers the active number of queues. Fixes: 512286bbd4b7 ("net: macb: Added some queue statistics") Signed-off-by: Paolo Valerio <pvalerio@redhat.com> Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de> Link: https://patch.msgid.link/20260323191634.2185840-1-pvalerio@redhat.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-03-26vfio/pci: Fix double free in dma-buf featureAlex Williamson
The error path through vfio_pci_core_feature_dma_buf() ignores its own advice to only use dma_buf_put() after dma_buf_export(), instead falling through the entire unwind chain. In the unlikely event that we encounter file descriptor exhaustion, this can result in an unbalanced refcount on the vfio device and double free of allocated objects. Avoid this by moving the "put" directly into the error path and return the errno rather than entering the unwind chain. Reported-by: Renato Marziano <renato@marziano.top> Fixes: 5d74781ebc86 ("vfio/pci: Add dma-buf export support for MMIO regions") Cc: stable@vger.kernel.org Acked-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Alex Williamson <alex.williamson@nvidia.com> Link: https://lore.kernel.org/r/20260323215659.2108191-3-alex.williamson@nvidia.com Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Alex Williamson <alex@shazbot.org>
2026-03-26spi: spi-fsl-lpspi: fix teardown order issue (UAF)Marc Kleine-Budde
There is a teardown order issue in the driver. The SPI controller is registered using devm_spi_register_controller(), which delays unregistration of the SPI controller until after the fsl_lpspi_remove() function returns. As the fsl_lpspi_remove() function synchronously tears down the DMA channels, a running SPI transfer triggers the following NULL pointer dereference due to use after free: | fsl_lpspi 42550000.spi: I/O Error in DMA RX | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [...] | Call trace: | fsl_lpspi_dma_transfer+0x260/0x340 [spi_fsl_lpspi] | fsl_lpspi_transfer_one+0x198/0x448 [spi_fsl_lpspi] | spi_transfer_one_message+0x49c/0x7c8 | __spi_pump_transfer_message+0x120/0x420 | __spi_sync+0x2c4/0x520 | spi_sync+0x34/0x60 | spidev_message+0x20c/0x378 [spidev] | spidev_ioctl+0x398/0x750 [spidev] [...] Switch from devm_spi_register_controller() to spi_register_controller() in fsl_lpspi_probe() and add the corresponding spi_unregister_controller() in fsl_lpspi_remove(). Fixes: 5314987de5e5 ("spi: imx: add lpspi bus driver") Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Link: https://patch.msgid.link/20260319-spi-fsl-lpspi-fixes-v1-1-b433e435b2d8@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2026-03-26media: ccs: Avoid deadlock in ccs_init_state()Sakari Ailus
The sub-device state lock has been already acquired when ccs_init_state() is called. Do not try to acquire it again. Reported-by: David Heidelberg <david@ixit.cz> Fixes: a88883d1209c ("media: ccs: Rely on sub-device state locking") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-03-26media: uvcvideo: Fix bug in error path of uvc_alloc_urb_buffersRicardo Ribalda
Recent cleanup introduced a bug in the error path of uvc_alloc_urb_buffers(). If there is not enough memory for the allocation the following error will be triggered: [ 739.196672] UBSAN: shift-out-of-bounds in mm/page_alloc.c:1403:22 [ 739.196710] shift exponent 52 is too large for 32-bit type 'int' Resulting in: [ 740.464422] BUG: unable to handle page fault for address: fffffac1c0800000 The reason for the bug is that usb_free_noncoherent is called with an invalid size (0) instead of the actual size of the urb. This patch takes care of that. Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com> Closes: https://lore.kernel.org/linux-media/abycbXzYupZpGkvR@hyeyoo/T/#t Tested-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com> Fixes: c824345288d1 ("media: uvcvideo: Pass allocation size directly to uvc_alloc_urb_buffer") Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patch.msgid.link/20260320-uvc-urb-free-error-v1-1-b12cc3762a19@chromium.org Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-03-26firmware: microchip: fail auto-update probe if no flash foundConor Dooley
There's no point letting the driver probe if there is no flash, as trying to do a firmware upload will fail. Move the code that attempts to get the flash from firmware upload to probe, and let it emit a message to users stating why auto-update is not supported. The code currently could have a problem if there's a flash in devicetree, but the system controller driver fails to get a pointer to it from the mtd subsystem, which will cause mpfs_sys_controller_get_flash() to return an error. Check for errors and null, instead of just null, in the new clause. CC: stable@vger.kernel.org Fixes: ec5b0f1193ad4 ("firmware: microchip: add PolarFire SoC Auto Update support") Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2026-03-26spi: fix use-after-free on managed registration failureJohan Hovold
The SPI API is asymmetric and the controller is freed as part of deregistration (unless it has been allocated using devm_spi_alloc_host/target()). A recent change converting the managed registration function to use devm_add_action_or_reset() inadvertently introduced a (mostly theoretical) regression where a non-devres managed controller could be freed as part of failed registration. This in turn would lead to use-after-free in controller driver error paths. Fix this by taking another reference before calling devm_add_action_or_reset() and not releasing it on errors for non-devres allocated controllers. An alternative would be a partial revert of the offending commit, but it is better to handle this explicitly until the API has been fixed (e.g. see 5e844cc37a5c ("spi: Introduce device-managed SPI controller allocation")). Fixes: b6376dbed8e1 ("spi: Simplify devm_spi_*_controller()") Reported-by: Felix Gu <ustc.gu@gmail.com> Link: https://lore.kernel.org/all/20260324145548.139952-1-ustc.gu@gmail.com/ Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Johan Hovold <johan@kernel.org> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://patch.msgid.link/20260325145319.1132072-1-johan@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2026-03-26drm/bridge: Fix refcount shown via debugfs for encoder_bridges_show()Liu Ying
A typical bridge refcount value is 3 after a bridge chain is formed: - devm_drm_bridge_alloc() initializes the refcount value to be 1. - drm_bridge_add() gets an additional reference hence 2. - drm_bridge_attach() gets the third reference hence 3. This typical refcount value aligns with allbridges_show()'s behaviour. However, since encoder_bridges_show() uses drm_for_each_bridge_in_chain_scoped() to automatically get/put the bridge reference while iterating, a bogus reference is accidentally got when showing the wrong typical refcount value as 4 to users via debugfs. Fix this by caching the refcount value returned from kref_read() while iterating and explicitly decreasing the cached refcount value by 1 before showing it to users. Fixes: bd57048e4576 ("drm/bridge: use drm_for_each_bridge_in_chain_scoped()") Signed-off-by: Liu Ying <victor.liu@nxp.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patch.msgid.link/20260318-drm-misc-next-2026-03-05-fix-encoder-bridges-refcount-v3-1-147fea581279@nxp.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-03-26crypto: caam - fix overflow on long hmac keysHoria Geantă
When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy. Fixes: 199354d7fb6e ("crypto: caam - Remove GFP_DMA and add DMA alignment padding") Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-03-26crypto: caam - fix DMA corruption on long hmac keysHoria Geantă
When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The rounding was performed, but never actually used for the allocation. Fix this by replacing kmemdup with kmalloc for a larger buffer, followed by memcpy. Fixes: 199354d7fb6e ("crypto: caam - Remove GFP_DMA and add DMA alignment padding") Reported-by: Paul Bunyan <pbunyan@redhat.com> Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-03-26crypto: tegra - Add missing CRYPTO_ALG_ASYNCEric Biggers
The tegra crypto driver failed to set the CRYPTO_ALG_ASYNC on its asynchronous algorithms, causing the crypto API to select them for users that request only synchronous algorithms. This causes crashes (at least). Fix this by adding the flag like what the other drivers do. Also remove the unnecessary CRYPTO_ALG_TYPE_* flags, since those just get ignored and overridden by the registration function anyway. Reported-by: Zorro Lang <zlang@redhat.com> Closes: https://lore.kernel.org/r/20260314080937.pghb4aa7d4je3mhh@dell-per750-06-vm-08.rhts.eng.pek2.redhat.com Fixes: 0880bb3b00c8 ("crypto: tegra - Add Tegra Security Engine driver") Cc: stable@vger.kernel.org Cc: Akhil R <akhilrajeev@nvidia.com> Signed-off-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-03-26gpio: mxc: map Both Edge pad wakeup to Rising EdgeShenwei Wang
Suspend may fail on i.MX8QM when Falling Edge is used as a pad wakeup trigger due to a hardware bug in the detection logic. Since the hardware does not support Both Edge wakeup, remap requests for Both Edge to Rising Edge by default to avoid hitting this issue. A warning is emitted when Falling Edge is selected on i.MX8QM. Fixes: f60c9eac54af ("gpio: mxc: enable pad wakeup on i.MX8x platforms") cc: stable@vger.kernel.org Reviewed-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com> Link: https://patch.msgid.link/20260324192129.2797237-1-shenwei.wang@nxp.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
2026-03-26iio: light: veml6070: fix veml6070_read() return valueAldo Conte
veml6070_read() computes the sensor value in ret but returns 0 instead of the actual result. This causes veml6070_read_raw() to always report 0. Return the computed value instead of 0. Running make W=1 returns no errors. I was unable to test the patch because I do not have the hardware. Found by code inspection. Fixes: fc38525135dd ("iio: light: veml6070: use guard to handle mutex") Signed-off-by: Aldo Conte <aldocontelk@gmail.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2026-03-26xen/privcmd: unregister xenstore notifier on module exitGuoHan Zhao
Commit 453b8fb68f36 ("xen/privcmd: restrict usage in unprivileged domU") added a xenstore notifier to defer setting the restriction target until Xenstore is ready. XEN_PRIVCMD can be built as a module, but privcmd_exit() leaves that notifier behind. Balance the notifier lifecycle by unregistering it on module exit. This is harmless even if xenstore was already ready at registration time and the notifier was never queued on the chain. Fixes: 453b8fb68f3641fe ("xen/privcmd: restrict usage in unprivileged domU") Signed-off-by: GuoHan Zhao <zhaoguohan@kylinos.cn> Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com> Message-ID: <20260325120246.252899-1-zhaoguohan@kylinos.cn>
2026-03-25Merge tag 'platform-drivers-x86-v7.0-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver fixes from Ilpo Järvinen: "Fixes and New HW Support. The trivial drop of unused gz_chain_head is not exactly fixes material but it allows other work to avoid problems so I decided to take it in along with the fixes. - amd/hsmp: Fix typo in error message - asus-armoury: Add support for G614FP, GA503QM, GZ302EAC, and GZ302EAC - asus-nb-wmi: Add DMI quirk for ASUS ROG Flow Z13-KJP GZ302EAC - hp-wmi: Support for Omen 16-k0xxx, 16-wf1xxx, 16-xf0xxx - intel-hid: Disable wakeup_mode during hibernation - ISST: - Check HWP support before MSR access - Correct locked bit width - lenovo: wmi-gamezone: Drop unused gz_chain_head - olpc-xo175-ec: Fix overflow error message" * tag 'platform-drivers-x86-v7.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: platform/x86: ISST: Correct locked bit width platform/x86: intel-hid: disable wakeup_mode during hibernation platform/x86: asus-armoury: add support for GZ302EA and GZ302EAC platform/x86: asus-nb-wmi: add DMI quirk for ASUS ROG Flow Z13-KJP GZ302EAC platform/x86/amd/hsmp: Fix typo in error message platform/olpc: olpc-xo175-ec: Fix overflow error message to print inlen platform/x86: lenovo: wmi-gamezone: Drop gz_chain_head platform/x86: ISST: Check HWP support before MSR access platform/x86: hp-wmi: Add support for Omen 16-k0xxx (8A4D) platform/x86: hp-wmi: Add support for Omen 16-wf1xxx (8C76) platform/x86: hp-wmi: Add Omen 16-xf0xxx (8BCA) support platform/x86: asus-armoury: add support for G614FP platform/x86: asus-armoury: add support for GA503QM MAINTAINERS: change email address of Denis Benato
2026-03-25hwmon: (pmbus/core) Protect regulator operations with mutexGuenter Roeck
The regulator operations pmbus_regulator_get_voltage(), pmbus_regulator_set_voltage(), and pmbus_regulator_list_voltage() access PMBus registers and shared data but were not protected by the update_lock mutex. This could lead to race conditions. However, adding mutex protection directly to these functions causes a deadlock because pmbus_regulator_notify() (which calls regulator_notifier_call_chain()) is often called with the mutex already held (e.g., from pmbus_fault_handler()). If a regulator callback then calls one of the now-protected voltage functions, it will attempt to acquire the same mutex. Rework pmbus_regulator_notify() to utilize a worker function to send notifications outside of the mutex protection. Events are stored as atomics in a per-page bitmask and processed by the worker. Initialize the worker and its associated data during regulator registration, and ensure it is cancelled on device removal using devm_add_action_or_reset(). While at it, remove the unnecessary include of linux/of.h. Cc: Sanman Pradhan <psanman@juniper.net> Fixes: ddbb4db4ced1b ("hwmon: (pmbus) Add regulator support") Reviewed-by: Sanman Pradhan <psanman@juniper.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>