CVE-2022-21546
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
18cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <5.4.294
- cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: 3.8
- osv-coords8 versionspkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20LTSS%20Extended%20Security%2012%20SP5pkg:rpm/suse/kgraft-patch-SLE12-SP5_Update_70&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP5
< 4.12.14-122.266.1+ 7 more
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 4.12.14-122.266.1
- (no CPE)range: < 1-8.5.1
Patches
Vulnerability mechanics
References
5- git.kernel.org/stable/c/4226622647e3e5ac06d3ebc1605b917446157510nvdPatch
- git.kernel.org/stable/c/54e57be2573cf0b8bf650375fd8752987b6c3d3bnvdPatch
- git.kernel.org/stable/c/ccd3f449052449a917a3e577d8ba0368f43b8f29nvdPatch
- git.kernel.org/stable/c/d8e6a27e9238dd294d6f2f401655f300dca20899nvdPatch
- lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlnvdMailing List
News mentions
0No linked articles in our index yet.