Out-of-bounds Read in Linux
CVE-2026-31528
In the Linux kernel, the following vulnerability has been resolved: perf: Make sure to use pmu_ctx->pmu for groups Oliver reported that x86_pmu_del() ended up doing an out-of-bound memory access when group_sched_in() fails and needs to r…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (3.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions bd27568117664b8b3e259721393df420ed51f57b, 6.2, 0
- Linux Linux_kernel — versions 7.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-31528?
- CVE-2026-31528 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2026-04-22.
- How severe is CVE-2026-31528?
- High severity. CVSS v3 base score is 7.8 out of 10.