CVE-2024-50031

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

drm/v3d: Stop the active perfmon before being destroyed

When running `kmscube` with one or more performance monitors enabled

via `GALLIUM_HUD`, the following kernel panic can occur:

[ 55.008324] Unable to handle kernel paging request at virtual address 00000000052004a4

[ 55.008368] Mem abort info:

[ 55.008377] ESR = 0x0000000096000005

[ 55.008387] EC = 0x25: DABT (current EL), IL = 32 bits

[ 55.008402] SET = 0, FnV = 0

[ 55.008412] EA = 0, S1PTW = 0

[ 55.008421] FSC = 0x05: level 1 translation fault

[ 55.008434] Data abort info:

[ 55.008442] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000

[ 55.008455] CM = 0, WnR = 0, TnD = 0, TagAccess = 0

[ 55.008467] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0

[ 55.008481] user pgtable: 4k pages, 39-bit VAs, pgdp=00000001046c6000

[ 55.008497] [00000000052004a4] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000

[ 55.008525] In

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References