CVE-2024-1312

Kernel: race condition leads to use after free during vma lock in lock_vma_under_rcu

Description

A use-after-free flaw was found in the Linux kernel's Memory Management subsystem when a user wins two races at the same time with a fail in the mas_prev_slot function. This issue could allow a local user to crash the system.

Remediation

Workaround:

  • Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Category

5.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Third-Party Advisory redhat.com Third-Party Advisory redhat.com
Affected: n/a kernel
Affected: n/a kernel
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Fedora Fedora
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/security/cve/CVE-2024-1312 vdb entry third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2225569 issue tracking third party advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/mm/memory.c?h=v6.8-rc3&id=657b5146955eba331e01b9a6ae89ce2e716ba306 mailing list patch

Frequently Asked Questions

What is the severity of CVE-2024-1312?
CVE-2024-1312 has been scored as a medium severity vulnerability.
How to fix CVE-2024-1312?
As a workaround for remediating CVE-2024-1312: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Is CVE-2024-1312 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-1312 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-1312?
CVE-2024-1312 affects n/a kernel, n/a kernel, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Fedora Fedora.
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