CVEvulnerability
CVE-2026-45876
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-27
- Last modified
- 2026-06-25
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
In the Linux kernel, the following vulnerability has been resolved:
arm64/gcs: Fix error handling in arch_set_shadow_stack_status()
alloc_gcs() returns an error-encoded pointer on failure, which comes
from do_mmap(), not NULL.
The current NULL check fails to detect errors, which could lead to using
an invalid GCS address.
Use IS_ERR_VALUE() to properly detect errors, consistent with the
check in gcs_alloc_thread_stack().
Affected configurations
• linux linux kernel (>= 6.13 < 6.18.14)
• linux linux kernel (>= 6.19 < 6.19.4)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness