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(parent: e93376c) | patch
ext4: fix potential NULL dereference in ext4_free_inodes_counts()
authorDan Carpenter <dan.carpenter@oracle.com>
Mon, 28 May 2012 18:16:57 +0000 (14:16 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Mon, 28 May 2012 18:16:57 +0000 (14:16 -0400)
commitbb3d132a24cd8bf5e7773b2d9f9baa58b07a7dae
treec88fbbdb6464bfa35c047b207dd6097f3b447375tree | snapshot
parente93376c20b70d1e62bb3246acd1bbe21fe58859fcommit | diff
ext4: fix potential NULL dereference in ext4_free_inodes_counts()

The ext4_get_group_desc() function returns NULL on error, and
ext4_free_inodes_count() function dereferences it without checking.
There is a check on the next line, but it's too late.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
fs/ext4/ialloc.c diff | blob | history
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