3.2.65-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Jan Kara <j...@suse.cz> commit 599a9b77ab289d85c2d5c8607624efbe1f552b0f upstream. When we fail to load block bitmap in __ext4_new_inode() we will dereference NULL pointer in ext4_journal_get_write_access(). So check for error from ext4_read_block_bitmap(). Coverity-id: 989065 Signed-off-by: Jan Kara <j...@suse.cz> Signed-off-by: Theodore Ts'o <ty...@mit.edu> Signed-off-by: Ben Hutchings <b...@decadent.org.uk> --- fs/ext4/ialloc.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -813,6 +813,10 @@ got: struct buffer_head *block_bitmap_bh; block_bitmap_bh = ext4_read_block_bitmap(sb, group); + if (!block_bitmap_bh) { + err = -EIO; + goto out; + } BUFFER_TRACE(block_bitmap_bh, "get block bitmap access"); err = ext4_journal_get_write_access(handle, block_bitmap_bh); if (err) { -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html