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.
CVSS
No CVSS.
References
Configurations
No configuration.
History
04 Jun 2025, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-05-02 22:15
Updated : 2025-06-04 13:15
NVD link : CVE-2022-21546
Mitre link : CVE-2022-21546
CVE.ORG link : CVE-2022-21546
JSON object : View
Products Affected
No product.
CWE
CWE-476
NULL Pointer Dereference