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| author | Amit Sunil Dhamne <amitsd@google.com> | 2025-05-02 16:57:03 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-19 15:32:35 +0200 |
| commit | 9f907ee83fee37b6c3f9efe5fd2e54c1161259dd (patch) | |
| tree | 25528be328eb8d19ca4e013b04334473bb370733 /include/net/aligned_data.h | |
| parent | 657003ced7f5ade8e739f5ad622f9d9db80686ae (diff) | |
usb: typec: tcpm/tcpci_maxim: Fix bounds check in process_rx()
commit 0736299d090f5c6a1032678705c4bc0a9511a3db upstream.
Register read of TCPC_RX_BYTE_CNT returns the total size consisting of:
PD message (pending read) size + 1 Byte for Frame Type (SOP*)
This is validated against the max PD message (`struct pd_message`) size
without accounting for the extra byte for the frame type. Note that the
struct pd_message does not contain a field for the frame_type. This
results in false negatives when the "PD message (pending read)" is equal
to the max PD message size.
Fixes: 6f413b559f86 ("usb: typec: tcpci_maxim: Chip level TCPC driver")
Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Kyle Tso <kyletso@google.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/stable/20250502-b4-new-fix-pd-rx-count-v1-1-e5711ed09b3d%40google.com
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20250502-b4-new-fix-pd-rx-count-v1-1-e5711ed09b3d@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions