bpf: Sync pending IRQ work before freeing ring buffer (Linux Linux)

CVE-2025-40319
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.14 % · percentile 4 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Sync pending IRQ work before freeing ring buffer Fix a race where irq_work can be queued in bpf_ringbuf_commit() but the ring buffer is freed before the work executes. In the syzbot reproducer, a BPF program attached to sched_switch triggers bpf_ringbuf_commit(), queuing an irq_work. If the ring buffer is freed before this work executes, the irq_work thread may accesses freed memory. Calling `irq_work_sync(&rb->work)` ensures that all pending irq_work complete before freeing the buffer.

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 457f44363a8894135c85b7a9afd2bd8196db24ab < 47626748a2a00068dbbd5836d19076637b4e235b ; affected 457f44363a8894135c85b7a9afd2bd8196db24ab < de2ce6b14bc3e565708a39bdba3ef9162aeffc72 ; affected 457f44363a8894135c85b7a9afd2bd8196db24ab < e1828c7a8d8135e21ff6adaaa9458c32aae13b11 ; affected 457f44363a8894135c85b7a9afd2bd8196db24ab < 6451141103547f4efd774e912418a3b4318046c6 ; affected 457f44363a8894135c85b7a9afd2bd8196db24ab < 10ca3b2eec384628bc9f5d8190aed9427ad2dde6 ; affected 457f44363a8894135c85b7a9afd2bd8196db24ab < 430e15544f11f8de26b2b5109c7152f71b78295e
Linux · Linuxaffected 5.8 ; unaffected 0 < 5.8 ; unaffected 5.10.247 ≤ 5.10.* ; unaffected 5.15.197 ≤ 5.15.* ; unaffected 6.1.159 ≤ 6.1.* ; unaffected 6.6.117 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD