- Vulnerability/
- CVE-2024-56550
CVE-2024-56550: s390/stacktrace: Use break instead of return statement
First published: Fri Dec 27 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: s390/stacktrace: Use break instead of return statement arch_stack_walk_user_common() contains a return statement instead of a break statement in case store_ip() fails while trying to store a callchain entry of a user space process. This may lead to a missing pagefault_enable() call. If this happens any subsequent page fault of the process won't be resolved by the page fault handler and this in turn will lead to the process being killed. Use a break instead of a return statement to fix this.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Kernel-devel | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
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Reference Links
- https://git.kernel.org/stable/c/20c26357826457dc7c8145297e60ddc012e18914
- https://git.kernel.org/stable/c/588a9836a4ef7ec3bfcffda526dfa399637e6cfc
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56550
- https://nvd.nist.gov/vuln/detail/CVE-2024-56550
- https://launchpad.net/bugs/cve/CVE-2024-56550
- https://security-tracker.debian.org/tracker/CVE-2024-56550
- https://ubuntu.com/security/CVE-2024-56550
- https://git.kernel.org/linus/588a9836a4ef7ec3bfcffda526dfa399637e6cfc
Frequently Asked Questions
What is the severity of CVE-2024-56550?
CVE-2024-56550 is classified as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2024-56550?
To remediate CVE-2024-56550, update to one of the fixed versions including 5.10.223-1, 5.10.234-1, 6.1.128-1, or 6.12.20-1.
Which versions of the Linux kernel are affected by CVE-2024-56550?
CVE-2024-56550 affects various versions of the Linux kernel prior to the fixes implemented in the specified patched versions.
What is the impact of CVE-2024-56550 on Linux systems?
CVE-2024-56550 can lead to potential instability in the stack trace functionality during execution in affected Linux kernel versions.
Is CVE-2024-56550 a remote exploit?
CVE-2024-56550 is not classified as a remote exploit vulnerability; it relates to internal stack trace handling.
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