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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-25 15:05:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-03-25 15:05:57 -0700 |
| commit | 3e79d97828841305e3369ad1e07cfed5bf5989ef (patch) | |
| tree | d14264947e9bf1a72922060dfefd08693e550ebc /fs/dcache.c | |
| parent | b098d6726bbfb94c06d6e1097466187afddae61f (diff) | |
| parent | b37199e626b31e1175fb06764c5d1d687723aac2 (diff) | |
| download | linux-3e79d97828841305e3369ad1e07cfed5bf5989ef.tar.bz2 | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"These four commits are obvious fixes (a couple of fdget_pos()-related
ones from Eric Biggers, prepend_name() fix, missing checks for false
negatives from __lookup_mnt() in fs/namei.c)"
For now I'm pulling just the four obvious fixes, there's another four
pending in Al's 'for-linus' branch wrt the mnt_hash list that were more
involved.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
rcuwalk: recheck mount_lock after mountpoint crossing attempts
make prepend_name() work correctly when called with negative *buflen
vfs: Don't let __fdget_pos() get FMODE_PATH files
vfs: atomic f_pos access in llseek()
Diffstat (limited to 'fs/dcache.c')
| -rw-r--r-- | fs/dcache.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 265e0ce9769c..ca02c13a84aa 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2833,9 +2833,9 @@ static int prepend_name(char **buffer, int *buflen, struct qstr *name) u32 dlen = ACCESS_ONCE(name->len); char *p; - if (*buflen < dlen + 1) - return -ENAMETOOLONG; *buflen -= dlen + 1; + if (*buflen < 0) + return -ENAMETOOLONG; p = *buffer -= dlen + 1; *p++ = '/'; while (dlen--) { |