Description
In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f6970ad31d42fceb38b5595cbad093a4d0bfcc43 to < 54e57be2573cf0b8bf650375fd8752987b6c3d3baffectedf6970ad31d42fceb38b5595cbad093a4d0bfcc43 to < d8e6a27e9238dd294d6f2f401655f300dca20899affectedf6970ad31d42fceb38b5595cbad093a4d0bfcc43 to < 4226622647e3e5ac06d3ebc1605b917446157510affectedf6970ad31d42fceb38b5595cbad093a4d0bfcc43 to < ccd3f449052449a917a3e577d8ba0368f43b8f29affected
Linux Linux
Default version status: affected
3.8affected0 to < 3.8unaffected5.4.294 to ≤ 5.4.*unaffected5.10.238 to ≤ 5.10.*unaffected5.15.182 to ≤ 5.15.*unaffected5.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/54e57be2573cf0b8bf650375fd8752987b6c3d3b ↗
- https://git.kernel.org/stable/c/d8e6a27e9238dd294d6f2f401655f300dca20899 ↗
- https://git.kernel.org/stable/c/4226622647e3e5ac06d3ebc1605b917446157510 ↗
- https://git.kernel.org/stable/c/ccd3f449052449a917a3e577d8ba0368f43b8f29 ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗