CVE-2024-56550: s390/stacktrace: Use break instead of return statement
In the Linux kernel, the following vulnerability has been resolved:
s390/stacktrace: Use break instead of return statement
archstackwalkusercommon() contains a return statement instead of a break statement in case storeip() fails while trying to store a callchain entry of a user space process. This may lead to a missing pagefaultenable() 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.
Other sources
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— Launchpad
Affected Software
Remediation
Event History
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.