CVEvulnerability
CVE-2022-50812
- Status
- Deferred
- Published
- 2025-12-30
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6
A bad bug in clang's implementation of -fzero-call-used-regs can result
in NULL pointer dereferences (see the links above the check for more
information). Restrict CONFIG_CC_HAS_ZERO_CALL_USED_REGS to either a
supported GCC version or a clang newer than 15.0.6, which will catch
both a theoretical 15.0.7 and the upcoming 16.0.0, which will both have
the bug fixed.
References
- https://git.kernel.org/stable/c/0b202dfedb5aa2e7d07d849be33fa3a48c026926 git.kernel.org
- https://git.kernel.org/stable/c/21ca0bfa11bbb9a9207f5d2104f47d3d71b4616e git.kernel.org
- https://git.kernel.org/stable/c/8a4236456a3a402f6bb92aa7b75e7a3b4ef7a72c git.kernel.org
- https://git.kernel.org/stable/c/d6a9fb87e9d18f3394a9845546bbe868efdccfd2 git.kernel.org