CVE-2023-54199

/// Technical description

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

drm/msm/adreno: Fix null ptr access in adreno_gpu_cleanup()

Fix the below kernel panic due to null pointer access:

[ 18.504431] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000048

[ 18.513464] Mem abort info:

[ 18.516346] ESR = 0x0000000096000005

[ 18.520204] EC = 0x25: DABT (current EL), IL = 32 bits

[ 18.525706] SET = 0, FnV = 0

[ 18.528878] EA = 0, S1PTW = 0

[ 18.532117] FSC = 0x05: level 1 translation fault

[ 18.537138] Data abort info:

[ 18.540110] ISV = 0, ISS = 0x00000005

[ 18.544060] CM = 0, WnR = 0

[ 18.547109] user pgtable: 4k pages, 39-bit VAs, pgdp=0000000112826000

[ 18.553738] [0000000000000048] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000

[ 18.562690] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP

**Snip**

[ 18.696758] Call trace:

[ 18.699278] adreno_gpu_cleanup+0x30/0x88

[ 18.703396] a6xx_destr

/// 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