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| author | Andrey Albershteyn <aalbersh@kernel.org> | 2026-07-09 17:24:07 +0200 |
|---|---|---|
| committer | Carlos Maiolino <cem@kernel.org> | 2026-07-12 17:32:27 +0200 |
| commit | 9202ee546b0cd71004eed7598546efe4660097da (patch) | |
| tree | c2f81c99265c03019669ffcd5d0a61576b03807c | |
| parent | f88caa121eac3b6a050262ac3de0c133ee17f7b2 (diff) | |
| download | linux-9202ee546b0cd71004eed7598546efe4660097da.tar.gz linux-9202ee546b0cd71004eed7598546efe4660097da.zip | |
xfs: fix null pointer dereference in tracepoint
If dfp is not NULL we exit early here, when dfp is NULL it's allocated
in xfs_defer_alloc() but not assigned. The tracepoint tries to
dereference members of dfp struct.
Signed-off-by: Andrey Albershteyn <aalbersh@kernel.org>
Cc: stable@vger.kernel.org # v6.8
Fixes: 3f3cec031099c3 ("xfs: force small EFIs for reaping btree extents")
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
| -rw-r--r-- | fs/xfs/libxfs/xfs_defer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_defer.c b/fs/xfs/libxfs/xfs_defer.c index c6909716b041..89501e8bd2f8 100644 --- a/fs/xfs/libxfs/xfs_defer.c +++ b/fs/xfs/libxfs/xfs_defer.c @@ -878,7 +878,7 @@ xfs_defer_add_barrier( if (dfp) return; - xfs_defer_alloc(&tp->t_dfops, &xfs_barrier_defer_type); + dfp = xfs_defer_alloc(&tp->t_dfops, &xfs_barrier_defer_type); trace_xfs_defer_add_item(tp->t_mountp, dfp, NULL); } |