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| author | Benjamin Coddington <bcodding@redhat.com> | 2022-06-13 16:40:06 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2022-07-30 03:08:56 +0300 |
| commit | 184cefbe62627730c30282df12bcff9aae4816ea (patch) | |
| tree | 5c26908a40480fae4d402c57ef1720dadf1e6532 /include/trace | |
| parent | c770f31d8f580ed4b965c64f924ec1cc50e41734 (diff) | |
| download | linux-184cefbe62627730c30282df12bcff9aae4816ea.tar.xz | |
NLM: Defend against file_lock changes after vfs_test_lock()
Instead of trusting that struct file_lock returns completely unchanged
after vfs_test_lock() when there's no conflicting lock, stash away our
nlm_lockowner reference so we can properly release it for all cases.
This defends against another file_lock implementation overwriting fl_owner
when the return type is F_UNLCK.
Reported-by: Roberto Bergantinos Corpas <rbergant@redhat.com>
Tested-by: Roberto Bergantinos Corpas <rbergant@redhat.com>
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'include/trace')
0 files changed, 0 insertions, 0 deletions