SB2026092836 - Out-of-bounds read in Linux kernel accel amdxdna driver

Description

This security bulletin contains information about 1 vulnerability.

1) Out-of-bounds read (CVE-ID: CVE-2026-98145)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in aie2_cmdlist_multi_execbuf when submitting an EXEC_CMD command chain with a zero command count. A local user can submit a command chain carrying no commands to cause a denial of service.

The fault occurs on firmware without AIE2_NPU_COMMAND support when execution reaches the command opcode handling path.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/ed74e8d603df457bfcf16ed4f8f1660a1525759e
• https://git.kernel.org/stable/c/ef6d27af71e1dc43181ec797a6aaa77c27c36786