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| author | Liu Bo <bo.liu@linux.alibaba.com> | 2018-04-02 20:59:47 +0300 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-04-05 20:22:17 +0300 |
| commit | 80c0b4210a963e31529e15bf90519708ec947596 (patch) | |
| tree | 526c3e6f1bdc12aabf541687a992c806576aaa5b /lib/debug_info.c | |
| parent | 57599c7e7722daf5f8c2dba4b0e4628f5c500771 (diff) | |
| download | linux-80c0b4210a963e31529e15bf90519708ec947596.tar.xz | |
Btrfs: fix NULL pointer dereference in log_dir_items
0, 1 and <0 can be returned by btrfs_next_leaf(), and when <0 is
returned, path->nodes[0] could be NULL, log_dir_items lacks such a
check for <0 and we may run into a null pointer dereference panic.
Fixes: e02119d5a7b4 ("Btrfs: Add a write ahead tree log to optimize synchronous operations")
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'lib/debug_info.c')
0 files changed, 0 insertions, 0 deletions