PT-2025-53930 · Clang+3 · Clang+3

Published

2022-01-01

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Updated

2026-01-01

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CVE-2022-50812

None

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Name of the Vulnerable Software and Affected Versions linux versions prior to kernel versions with gcc or clang greater than 15.0.6
Description A flaw exists in the Linux kernel related to the configuration option CONFIG ZERO CALL USED REGS. A bug in clang’s implementation of the -fzero-call-used-regs flag can lead to NULL pointer dereferences. The issue arises when using unsupported GCC versions or clang versions 15.0.6 and earlier. Restricting the use of CONFIG CC HAS ZERO CALL USED REGS to supported GCC versions or clang versions newer than 15.0.6 can prevent this issue.
Recommendations Ensure the system uses a supported GCC version or a clang version greater than 15.0.6. Restrict the use of the CONFIG CC HAS ZERO CALL USED REGS configuration option to supported compilers.

Exploit

Related Identifiers

CVE-2022-50812

Affected Products

Clang
Debian
Gcc
Linux Kernel