CVE-2024-42075

bpf: Fix remap of arena.

State: Published
Severity: 7.8 High
Published: Jul 29, 2024
Updated: Aug 5, 2026
Reserved: Jul 29, 2024

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	317460317a02a1af512697e6e964298dedd8a163 to before 87496a1b01e8e2e399428c0db25e106f7961d01eAffected 317460317a02a1af512697e6e964298dedd8a163 to before b90d77e5fd784ada62ddd714d15ee2400c28e1cfAffected
LinuxLinux	6.9Affected before 6.9Not affected 6.9.8 through 6.9.*Not affected 6.10 and laterNot affected

References

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