CVE-2026-72025
CVE CVE-2026-72025EUVD EUVD-2026-58983Published 2026-08-15T05:51:49.000ZLast changed 2026-08-18T06:56:09.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: s390/monwriter: Reject buffer reuse with different data length When data buffers are reused, e.g. for interval sample records, the first record determines the data length, and the size of the buffer for user copy. Current monwriter code does not check if the data length was changed for subsequent records, which also would never happen for valid user programs. However, a malicious user could change the data length, resulting in out of bounds user copy to the kernel buffer, and memory corruption. By default, the monwriter misc device is created with root-only permissions, so practical impact is typically low. Fix this by checking for changed data length and rejecting such records.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 31b58088292c7f00f0b81088bfb557285b0b6247 <759d91378203ea35fa9bca6726dcf0010de081fb; patch: 6.6.145; patch: 7.2; patch: 5.15.212; 2.6.19; 31b58088292c7f00f0b81088bfb557285b0b6247 <d39cf4a6d721b1ae21eb53bbf3e8cd984253d7ab; 31b58088292c7f00f0b81088bfb557285b0b6247 <f0745496f7c171271cafd9457df3b914a483ddeb; patch: 6.1.178; patch: 6.12.97; patch: 0; 31b58088292c7f00f0b81088bfb557285b0b6247 <ae5347f3db1782c6118f6cc0d9fd8b1d43397db3; patch: 6.18.40; 31b58088292c7f00f0b81088bfb557285b0b6247 <01f3ce411711c2c919598ea25320a5a48f71edbc; 31b58088292c7f00f0b81088bfb557285b0b6247 <2995ccec260caa9e85b3301a4aba1e66ed80ad74; patch: 7.1.5; patch: 5.10.261; 31b58088292c7f00f0b81088bfb557285b0b6247 <096dff1247037d329c04b3a5be0ecdfb1c5c7ac6; 31b58088292c7f00f0b81088bfb557285b0b6247 <036bc5661060702e798d215e81bb46da530965b3
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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