kernel/drivers/infiniband, branch master

RDMA/uverbs: Import DMA-BUF module in uverbs_std_types_dmabuf file

2026-02-26T09:58:24Z

Fix the following compilation error: ERROR: modpost: module ib_uverbs uses symbol dma_buf_move_notify from namespace DMA_BUF, but does not import it. Fixes: 0ac6f4056c4a ("RDMA/uverbs: Add DMABUF object type and operations") Link: https://patch.msgid.link/20260225-fix-uverbs-compilation-v1-1-acf7b3d0f9fa@nvidia.com Signed-off-by: Leon Romanovsky

RDMA/umem: Fix double dma_buf_unpin in failure path

2026-02-25T12:50:58Z

In ib_umem_dmabuf_get_pinned_with_dma_device(), the call to ib_umem_dmabuf_map_pages() can fail. If this occurs, the dmabuf is immediately unpinned but the umem_dmabuf->pinned flag is still set. Then, when ib_umem_release() is called, it calls ib_umem_dmabuf_revoke() which will call dma_buf_unpin() again. Fix this by removing the immediate unpin upon failure and just let the ib_umem_release/revoke path handle it. This also ensures the proper unmap-unpin unwind ordering if the dmabuf_map_pages call happened to fail due to dma_resv_wait_timeout (and therefore has a non-NULL umem_dmabuf->sgt). Fixes: 1e4df4a21c5a ("RDMA/umem: Allow pinned dmabuf umem usage") Signed-off-by: Jacob Moroni Link: https://patch.msgid.link/20260224234153.1207849-1-jmoroni@google.com Signed-off-by: Leon Romanovsky

RDMA/core: Check id_priv->restricted_node_type in cma_listen_on_dev()

2026-02-25T12:50:10Z

When listening on wildcard addresses we have a global list for the application layer rdma_cm_id and for any existing device or any device added in future we try to listen on any wildcard listener. When the listener has a restricted_node_type we should prevent listening on devices with a different node type. While there fix the documentation comment of rdma_restrict_node_type() to include rdma_resolve_addr() instead of having rdma_bind_addr() twice. Fixes: a760e80e90f5 ("RDMA/core: introduce rdma_restrict_node_type()") Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: Steve French Cc: Namjae Jeon Cc: Tom Talpey Cc: Long Li Cc: linux-rdma@vger.kernel.org Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Signed-off-by: Stefan Metzmacher Link: https://patch.msgid.link/20260224165951.3582093-2-metze@samba.org Signed-off-by: Leon Romanovsky

RDMA/ionic: Fix kernel stack leak in ionic_create_cq()

2026-02-24T10:03:15Z

struct ionic_cq_resp resp { __u32 cqid[2]; // offset 0 - PARTIALLY SET (see below) __u8 udma_mask; // offset 8 - SET (resp.udma_mask = vcq->udma_mask) __u8 rsvd[7]; // offset 9 - NEVER SET <- LEAK }; rsvd[7]: 7 bytes of stack memory leaked unconditionally. cqid[2]: The loop at line 1256 iterates over udma_idx but skips indices where !(vcq->udma_mask & BIT(udma_idx)). The array has 2 entries but udma_count could be 1, meaning cqid[1] might never be written via ionic_create_cq_common(). If udma_mask only has bit 0 set, cqid[1] (4 bytes) is also leaked. So potentially 11 bytes leaked. Cc: stable@vger.kernel.org Fixes: e8521822c733 ("RDMA/ionic: Register device ops for control path") Signed-off-by: Jason Gunthorpe Link: https://patch.msgid.link/4-v1-83e918d69e73+a9-rdma_udata_rc_jgg@nvidia.com Acked-by: Abhijit Gangurde Signed-off-by: Leon Romanovsky

RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah()

2026-02-24T10:03:15Z

struct irdma_create_ah_resp { // 8 bytes, no padding __u32 ah_id; // offset 0 - SET (uresp.ah_id = ah->sc_ah.ah_info.ah_idx) __u8 rsvd[4]; // offset 4 - NEVER SET <- LEAK }; rsvd[4]: 4 bytes of stack memory leaked unconditionally. Only ah_id is assigned before ib_respond_udata(). The reserved members of the structure were not zeroed. Cc: stable@vger.kernel.org Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs") Signed-off-by: Jason Gunthorpe Link: https://patch.msgid.link/3-v1-83e918d69e73+a9-rdma_udata_rc_jgg@nvidia.com Signed-off-by: Leon Romanovsky

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()

2026-02-24T10:03:15Z

Fix a user triggerable leak on the system call failure path. Cc: stable@vger.kernel.org Fixes: ec34a922d243 ("[PATCH] IB/mthca: Add SRQ implementation") Signed-off-by: Jason Gunthorpe Link: https://patch.msgid.link/2-v1-83e918d69e73+a9-rdma_udata_rc_jgg@nvidia.com Signed-off-by: Leon Romanovsky

RDMA/efa: Fix typo in efa_alloc_mr()

2026-02-24T10:01:32Z

The pattern is to check the entire driver request space, not just sizeof something unrelated. Fixes: 40909f664d27 ("RDMA/efa: Add EFA verbs implementation") Signed-off-by: Jason Gunthorpe Link: https://patch.msgid.link/1-v1-83e918d69e73+a9-rdma_udata_rc_jgg@nvidia.com Acked-by: Michael Margolin Signed-off-by: Leon Romanovsky

RDMA/ionic: Fix potential NULL pointer dereference in ionic_query_port

2026-02-24T09:54:10Z

The function ionic_query_port() calls ib_device_get_netdev() without checking the return value which could lead to NULL pointer dereference, Fix it by checking the return value and return -ENODEV if the 'ndev' is NULL. Fixes: 2075bbe8ef03 ("RDMA/ionic: Register device ops for miscellaneous functionality") Signed-off-by: Kamal Heib Link: https://patch.msgid.link/20260220222125.16973-2-kheib@redhat.com Signed-off-by: Leon Romanovsky

RDMA/bng_re: Unwind bng_re_dev_init properly

2026-02-24T08:56:28Z

Fix below smatch warning: drivers/infiniband/hw/bng_re/bng_dev.c:270 bng_re_dev_init() warn: missing unwind goto? Current bng_re_dev_init function is not having clear unwinding code. So, added proper unwinding with ladder. Fixes: 4f830cd8d7fe ("RDMA/bng_re: Add infrastructure for enabling Firmware channel") Reported-by: Simon Horman Reported-by: kernel test robot Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/202601010413.sWadrQel-lkp@intel.com/ Signed-off-by: Siva Reddy Kallam Link: https://patch.msgid.link/20260218091246.1764808-3-siva.kallam@broadcom.com Signed-off-by: Leon Romanovsky

RDMA/bng_re: Remove unnessary validity checks

2026-02-24T08:53:24Z

Fix below smatch warning: drivers/infiniband/hw/bng_re/bng_dev.c:113 bng_re_net_ring_free() warn: variable dereferenced before check 'rdev' (see line 107) current driver has unnessary validity checks. So, removing these unnessary validity checks. Fixes: 4f830cd8d7fe ("RDMA/bng_re: Add infrastructure for enabling Firmware channel") Fixes: 745065770c2d ("RDMA/bng_re: Register and get the resources from bnge driver") Fixes: 04e031ff6e60 ("RDMA/bng_re: Initialize the Firmware and Hardware") Fixes: d0da769c19d0 ("RDMA/bng_re: Add Auxiliary interface") Reported-by: Simon Horman Reported-by: kernel test robot Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/202601010413.sWadrQel-lkp@intel.com/ Signed-off-by: Siva Reddy Kallam Link: https://patch.msgid.link/20260218091246.1764808-2-siva.kallam@broadcom.com Signed-off-by: Leon Romanovsky