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CVE-2024-1312

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

MEDIUM
4.7
CVSS Score
Published: February 8, 2024 at 12:38 PM UTC
Updated: June 17, 2026 at 07:03 AM UTC
3 products affected across 3 vendorsLinux KernelFedoraKernel

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

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

Fedora· Fedora Projectrpm
95%
39
Linux Kernel· Linux
95%
v < 6.56.5 rc16.5 rc26.5 rc3
Affected range stops below 6.5, so it looks safe — our inference, not a vendor statement
Kernel· Red Hat
60%
All versions
Vendor states this is fixed in 6.5-rc4 (unaffected)

Remediation

No guide yet

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

Patch and advisory references

References (3)

VDB Entryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2024-1312
Issue Trackingx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2225569
Mailing ListPatch
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/mm/memory.c?h=v6.8-rc3&id=657b5146955eba331e01b9a6ae89ce2e716ba306

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.7MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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