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| author | Piotr Zalewski <pZ010001011111@proton.me> | 2024-11-06 22:46:30 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-11-08 00:48:21 +0300 |
| commit | f9f0a5390dcef1f96cc506a2cf7d50c8e348fa3d (patch) | |
| tree | aeb0f4cfd7560359fb335d4a280931e99dd9aabe /tools/perf/scripts/python/parallel-perf.py | |
| parent | baefd3f849ed956d4c1aee80889093cf0d9c6a94 (diff) | |
| download | linux-f9f0a5390dcef1f96cc506a2cf7d50c8e348fa3d.tar.xz | |
bcachefs: Change OPT_STR max to be 1 less than the size of choices array
Change OPT_STR max value to be 1 less than the "ARRAY_SIZE" of "_choices"
array. As a result, remove -1 from (opt->max-1) in bch2_opt_to_text.
The "_choices" array is a null-terminated array, so computing the maximum
using "ARRAY_SIZE" without subtracting 1 yields an incorrect result. Since
bch2_opt_validate don't subtract 1, as bch2_opt_to_text does, values
bigger than the actual maximum would pass through option validation.
Reported-by: syzbot+bee87a0c3291c06aa8c6@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=bee87a0c3291c06aa8c6
Fixes: 63c4b2545382 ("bcachefs: Better superblock opt validation")
Suggested-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Piotr Zalewski <pZ010001011111@proton.me>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'tools/perf/scripts/python/parallel-perf.py')
0 files changed, 0 insertions, 0 deletions