Use After Free in Linux
CVE-2026-23344
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix use-after-free on error path In the error path of sev_tsm_init_locked(), the code dereferences 't' after it has been freed with kfree(). The pr_err() statement attempts to access t->tio_en and t->tio_init_done after the memory has been released. Move the pr_err() call before kfree(t) to access the fields while the memory is still valid. This issue reported by Smatch static analyser
Vulnerability class: Use-After-Free
EPSS: 0.001 (2.2th 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 4be423572da1f4c11f45168e3fafda870ddac9f8, 6.19, 0
- Linux Linux_kernel — versions 6.19, 7.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-23344?
- CVE-2026-23344 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2026-03-25.
- How severe is CVE-2026-23344?
- High severity. CVSS v3 base score is 7.8 out of 10.