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| author | Nikita Kiryushin <kiryushin@ancud.ru> | 2024-03-14 16:36:56 +0300 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2024-03-25 22:16:16 +0300 |
| commit | e6595224464b692ddae193d783402130d1625147 (patch) | |
| tree | 9aecdd07da7755cb46418d0b3c76f1fabd41dbba /fs/notify/fanotify | |
| parent | 4cece764965020c22cff7665b18a012006359095 (diff) | |
| download | linux-e6595224464b692ddae193d783402130d1625147.tar.xz | |
fanotify: remove unneeded sub-zero check for unsigned value
Unsigned size_t len in copy_fid_info_to_user is checked
for negative value. This check is redundant as it is
always false.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 5e469c830fdb ("fanotify: copy event fid info to user")
Signed-off-by: Nikita Kiryushin <kiryushin@ancud.ru>
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <d296ff1c-dcf7-4813-994b-3c4369debb7d@ancud.ru>
Diffstat (limited to 'fs/notify/fanotify')
| -rw-r--r-- | fs/notify/fanotify/fanotify_user.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index fbdc63cc10d9..4201723357cf 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -502,7 +502,7 @@ static int copy_fid_info_to_user(__kernel_fsid_t *fsid, struct fanotify_fh *fh, } /* Pad with 0's */ - WARN_ON_ONCE(len < 0 || len >= FANOTIFY_EVENT_ALIGN); + WARN_ON_ONCE(len >= FANOTIFY_EVENT_ALIGN); if (len > 0 && clear_user(buf, len)) return -EFAULT; |