What is CVE-2026-31734?

CVE-2026-31734 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-01.

How severe is CVE-2026-31734?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-31734

In the Linux kernel, the following vulnerability has been resolved: sched_ext: Fix is_bpf_migration_disabled() false negative on non-PREEMPT_RCU Since commit 8e4f0b1ebcf2 ("bpf: use rcu_read_lock_dont_migrate() for trampoline.c"), the BP…

EPSS: 0.000 (3.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions 8e4f0b1ebcf2180ab594f204f01279a666dadf3b, 6.18, 0
Linux Linux_kernel — versions 7.0

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-31734?: CVE-2026-31734 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-01.
How severe is CVE-2026-31734?: Medium severity. CVSS v3 base score is 5.5 out of 10.