CVE-2024-56550

s390/stacktrace: Use break instead of return statement

MEDIUM
5.5
CVSS Score
Published: December 27, 2024 at 02:22 PM UTC
Updated: June 17, 2026 at 08:12 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 6.9.46.10 ≤ v < 6.12.46.10 ≤ v < 6.136.9.4 ≤ v < 6.106.106.9.4dd69165ac3dc12d8550aeec3fc4439c084ded3d8ebd912ff9919a10609511383d94942362234c077
Vendor states this is fixed in 20c26357826457dc7c8145297e60ddc012e18914 (fixed)
Vendor states this is fixed in 588a9836a4ef7ec3bfcffda526dfa399637e6cfc (fixed)
Vendor states this is fixed in 6.10 (unaffected)
Vendor states this is fixed in 6.12.4 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/20c26357826457dc7c8145297e60ddc012e18914
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/588a9836a4ef7ec3bfcffda526dfa399637e6cfc

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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