CVE-2024-42075

bpf: Fix remap of arena.

MEDIUM
5.5
CVSS Score
Published: July 29, 2024 at 03:52 PM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arena_vm_close.

Affected

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

v < 6.96.9 ≤ v < 6.106.9 ≤ v < 6.9.86.9.1 ≤ v < 6.9.8317460317a02a1af512697e6e964298dedd8a1636.9
Vendor states this is fixed in 87496a1b01e8e2e399428c0db25e106f7961d01e (fixed)
Vendor states this is fixed in b90d77e5fd784ada62ddd714d15ee2400c28e1cf (fixed)
Vendor states this is fixed in 6.10 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)
Vendor states this is fixed in 6.9.8 (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/87496a1b01e8e2e399428c0db25e106f7961d01e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b90d77e5fd784ada62ddd714d15ee2400c28e1cf

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-416

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