CVE-2023-53248 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.60%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
LinuxLinux KernelDebian Linux+3 more
Timeline
PublishedSep 15

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: install stub fence into potential unused fence pointers When using cpu to update page tables, vm update fences are unused. Install stub fence into these fence pointers instead of NULL to avoid NULL dereference when calling dma_fence_wait() on them.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages7 packages

▶NVDlinux/linux_kernel4.2 — 6.1.47+1
▶Debianlinux/linux_kernel< 6.1.52-1+2
▶CVEListV5linux/linuxd38ceaf99ed015f2a0b9af3499791bd3a3daae21 — 78b25110eb8c6990f7f5096bc0136c12a2b4cc99+3
▶debiandebian/linux< linux 6.1.52-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-96mj-4fv4-g633: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: install stub fence into potential unused fence pointers When using c↗2025-09-15
▶
OSV
CVE-2023-53248: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: install stub fence into potential unused fence pointers When using cpu↗2025-09-15
▶

📋Vendor Advisories

3
Red Hat
kernel: drm/amdgpu: install stub fence into potential unused fence pointers↗2025-09-15
▶
Microsoft
drm/amdgpu: install stub fence into potential unused fence pointers↗2025-09-09
▶
Debian
CVE-2023-53248: linux - In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu:...↗2023
▶
CVE-2023-53248 — NULL Pointer Dereference in Linux | cvebase