diff options
| author | Yuezhang Mo <[email protected]> | 2024-10-28 11:23:36 +0800 |
|---|---|---|
| committer | Namjae Jeon <[email protected]> | 2024-11-25 17:08:20 +0900 |
| commit | 184fa506e392eb78364d9283c961217ff2c0617b (patch) | |
| tree | f7395248bfa08c295714d2400c5e3d6e4b8b3533 /drivers/fpga/xilinx-selectmap.c | |
| parent | 9f16d5e6f220661f73b36a4be1b21575651d8833 (diff) | |
exfat: fix out-of-bounds access of directory entries
In the case of the directory size is greater than or equal to
the cluster size, if start_clu becomes an EOF cluster(an invalid
cluster) due to file system corruption, then the directory entry
where ei->hint_femp.eidx hint is outside the directory, resulting
in an out-of-bounds access, which may cause further file system
corruption.
This commit adds a check for start_clu, if it is an invalid cluster,
the file or directory will be treated as empty.
Cc: [email protected]
Signed-off-by: Yuezhang Mo <[email protected]>
Co-developed-by: Namjae Jeon <[email protected]>
Signed-off-by: Namjae Jeon <[email protected]>
Diffstat (limited to 'drivers/fpga/xilinx-selectmap.c')
0 files changed, 0 insertions, 0 deletions