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| author | Joseph Qi <joseph.qi@huawei.com> | 2015-04-15 00:43:33 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 01:48:58 +0200 |
| commit | 023d4ea358494ccfeb37abfe5b0fd01b45a6051c (patch) | |
| tree | 236d2f72d3a72bc60f1cfce95c3448ad194951e2 /fs/ocfs2/localalloc.c | |
| parent | ocfs2: remove goto statement in ocfs2_check_dir_for_entry() (diff) | |
| download | linux-023d4ea358494ccfeb37abfe5b0fd01b45a6051c.tar.xz linux-023d4ea358494ccfeb37abfe5b0fd01b45a6051c.zip | |
ocfs2: fix possible uninitialized variable access
In ocfs2_local_alloc_find_clear_bits and ocfs2_get_dentry, variable
numfound and set may be uninitialized and then used in tracepoint. In
ocfs2_xattr_block_get and ocfs2_delete_xattr_in_bucket, variable block_off
and xv may be uninitialized and then used in the following logic due to
unchecked return value.
This patch fixes these possible issues.
Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/localalloc.c')
| -rw-r--r-- | fs/ocfs2/localalloc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index 096cff6f9ba8..857bbbcd39f3 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -839,7 +839,7 @@ static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb, u32 *numbits, struct ocfs2_alloc_reservation *resv) { - int numfound, bitoff, left, startoff, lastzero; + int numfound = 0, bitoff, left, startoff, lastzero; int local_resv = 0; struct ocfs2_alloc_reservation r; void *bitmap = NULL; |