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| author | Namjae Jeon <linkinjeon@kernel.org> | 2024-10-26 13:06:15 +0900 |
|---|---|---|
| committer | Namjae Jeon <linkinjeon@kernel.org> | 2024-11-25 17:08:21 +0900 |
| commit | 02dffe9ab092fc4c8800aee68cb7eafd37a980c4 (patch) | |
| tree | 2306a3537055b803d235a18465cc42809e574319 /tools/perf/scripts/python/task-analyzer.py | |
| parent | 184fa506e392eb78364d9283c961217ff2c0617b (diff) | |
| download | linux-02dffe9ab092fc4c8800aee68cb7eafd37a980c4.tar.gz linux-02dffe9ab092fc4c8800aee68cb7eafd37a980c4.tar.bz2 linux-02dffe9ab092fc4c8800aee68cb7eafd37a980c4.zip | |
exfat: fix uninit-value in __exfat_get_dentry_set
There is no check if stream size and start_clu are invalid.
If start_clu is EOF cluster and stream size is 4096, It will
cause uninit value access. because ei->hint_femp.eidx could
be 128(if cluster size is 4K) and wrong hint will allocate
next cluster. and this cluster will be same with the cluster
that is allocated by exfat_extend_valid_size(). The previous
patch will check invalid start_clu, but for clarity, initialize
hint_femp.eidx to zero.
Cc: stable@vger.kernel.org
Reported-by: syzbot+01218003be74b5e1213a@syzkaller.appspotmail.com
Tested-by: syzbot+01218003be74b5e1213a@syzkaller.appspotmail.com
Reviewed-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions