| Name | CVE-2026-64559 |
| Description | In the Linux kernel, the following vulnerability has been resolved: s390/pkey: Check length in PKEY_VERIFYPROTK ioctl Explicitly check the buffer length request structure provided by user-space and fail, if it exceeds the buffer size. |
| 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 |
Vulnerable and fixed packages
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.
Notes
[bookworm] - linux <not-affected> (Vulnerable code not present)
[bullseye] - linux <not-affected> (Vulnerable code not present)
https://git.kernel.org/linus/b3d4ab2d7df9426f7f1d3671d7e2108f2ca6e970 (7.2-rc1)