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| author |   Jacob Keller <jacob.e.keller@intel.com> | 2023-07-10 13:41:27 -0700 |
|---|---|---|
| committer |   Tony Nguyen <anthony.l.nguyen@intel.com> | 2023-07-21 08:49:37 -0700 |
| commit | a2f054c10bef0b54600ec9cb776508443e941343 (patch) | |
| tree | aed0f3215c5c3f3aca7900955d38d73481e8fe60 /scripts/generate_rust_analyzer.py | |
| parent | i40e: Fix an NULL vs IS_ERR() bug for debugfs_create_dir() (diff) | |
| download | wireguard-linux-a2f054c10bef0b54600ec9cb776508443e941343.tar.xz wireguard-linux-a2f054c10bef0b54600ec9cb776508443e941343.zip | |
iavf: fix potential deadlock on allocation failure
In iavf_adminq_task(), if kzalloc() fails to allocate the event.msg_buf,
the function will exit without releasing the adapter->crit_lock.
This is unlikely, but if it happens, the next access to that mutex will
deadlock.
Fix this by moving the unlock to the end of the function, and adding a new
label to allow jumping to the unlock portion of the function exit flow.
Fixes: fc2e6b3b132a ("iavf: Rework mutexes for better synchronisation")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions