CVE - CVE-2022-21546

CVE-ID
CVE-2022-21546	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/4226622647e3e5ac06d3ebc1605b917446157510 URL:https://git.kernel.org/stable/c/4226622647e3e5ac06d3ebc1605b917446157510 MISC:https://git.kernel.org/stable/c/ccd3f449052449a917a3e577d8ba0368f43b8f29 URL:https://git.kernel.org/stable/c/ccd3f449052449a917a3e577d8ba0368f43b8f29
Assigning CNA
kernel.org
Date Record Created
20211115	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20211115)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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