| Name | CVE-2026-64558 |
| Description | In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in pkey_pckmo handler implementation Explicitly check the length of the target buffer in the pkey_pckmo implementation of the key_to_protkey() handler function. The handler function fails, if the generated output data exceeds the length of the provided target buffer. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4724-1, DSA-6405-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bullseye | 5.10.223-1 | fixed |
| bullseye (security) | 5.10.262-1 | fixed | |
| bookworm | 6.1.176-1 | fixed | |
| bookworm (security) | 6.1.180-1 | fixed | |
| trixie | 6.12.94-1 | vulnerable | |
| trixie (security) | 6.12.101-1 | fixed | |
| forky | 7.1.8-1 | fixed | |
| sid | 7.1.8-2 | fixed | |
| linux-6.12 (PTS) | bookworm (security) | 6.12.101-1~deb12u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | bullseye | (not affected) | |||
| linux | source | bookworm | (not affected) | |||
| linux | source | trixie | 6.12.100-1 | DSA-6405-1 | ||
| linux | source | (unstable) | 7.1.5-1 | |||
| linux-6.12 | source | bookworm | 6.12.100-1~deb12u1 | DLA-4724-1 |
[bookworm] - linux <not-affected> (Vulnerable code not present)
[bullseye] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/1ac287e2af9a9112fe271427ef45eceb26bce8b4 (7.2-rc1)