Vulnerability Monitor

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CVE-2022-21546

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.

Published

2025-05-02T22:15:15.290

Last Modified

2025-11-10T17:37:14.470

Status

Analyzed

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Severity

CVSSv3.1: 7.8 (HIGH)

Weaknesses
  • Type: Primary
    CWE-476
  • Type: Secondary
    CWE-476
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 5.4.294 Yes
Operating System linux linux_kernel < 5.10.238 Yes
Operating System linux linux_kernel < 5.15.182 Yes
Operating System linux linux_kernel < 5.19 Yes
Operating System linux linux_kernel 5.19 Yes
Operating System linux linux_kernel 5.19 Yes
Operating System linux linux_kernel 5.19 Yes
Operating System linux linux_kernel 5.19 Yes
Operating System linux linux_kernel 5.19 Yes
Operating System linux linux_kernel 5.19 Yes
Operating System debian debian_linux 11.0 Yes
References