CVE-2024-50156

Source
https://nvd.nist.gov/vuln/detail/CVE-2024-50156
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50156.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-50156
Downstream
Related
Published
2024-11-07T10:15:07Z
Modified
2025-08-09T19:01:27Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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

drm/msm: Avoid NULL dereference in msmdispstateprintregs()

If the allocation in msmdispstatedumpregs() failed then block->state can be NULL. The msmdispstateprintregs() function does have code to try to handle it with:

if (*reg) dump_addr = *reg;

...but since "dump_addr" is initialized to NULL the above is actually a noop. The code then goes on to dereference dump_addr.

Make the function print "Registers not stored" when it sees a NULL to solve this. Since we're touching the code, fix msmdispstateprintregs() not to pointlessly take a double-pointer and properly mark the pointer as const.

Patchwork: https://patchwork.freedesktop.org/patch/619657/

References

Affected packages