SB20261023212 - Function Call with Incorrectly Specified Arguments in Linux kernel drm imagination driver

Description

This security bulletin contains information about 1 vulnerability.

1) Function Call with Incorrectly Specified Arguments (CVE-ID: CVE-2026-98949)

CWE-ID: CWE-628 - Function Call with Incorrectly Specified Arguments

CVSSv4: 0 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a local user to trigger inconsistent GPU mapping associations and a kernel warning.

The vulnerability exists due to incorrectly specified function arguments in pvr_vm_gpuva_remap() in the Linux kernel imagination graphics driver when an overlapping mapping splits an existing mapping associated with a different buffer object. A local user can request such a mapping to cause the remaining mapping parts to be linked to the new object's vm_bo rather than the original object's vm_bo, triggering the object-mismatch warning in drm_gpuva_link().

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/196d4d10c1b33ae176685ff42a9994a5952b1d0f
• https://git.kernel.org/stable/c/521cf8403a185a9d5790fe324bb43ba7ea85f51c
• https://git.kernel.org/stable/c/784356aa88b82035d70e9faeded49b70cddeb29e
• https://git.kernel.org/stable/c/9caa2eca5cc8372517ff36a83f321d4326abae93