- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 3 days later
· 3 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 31b58088292c7f00f0b81088bfb557285b0b6247 – < 096dff1247037d329c04b3a5be0ecdfb1c5c7ac6
- affected 31b58088292c7f00f0b81088bfb557285b0b6247 – < d39cf4a6d721b1ae21eb53bbf3e8cd984253d7ab
- affected 31b58088292c7f00f0b81088bfb557285b0b6247 – < 759d91378203ea35fa9bca6726dcf0010de081fb
- affected 31b58088292c7f00f0b81088bfb557285b0b6247 – < 036bc5661060702e798d215e81bb46da530965b3
- affected 31b58088292c7f00f0b81088bfb557285b0b6247 – < 01f3ce411711c2c919598ea25320a5a48f71edbc
- affected 31b58088292c7f00f0b81088bfb557285b0b6247 – < f0745496f7c171271cafd9457df3b914a483ddeb
- affected 31b58088292c7f00f0b81088bfb557285b0b6247 – < ae5347f3db1782c6118f6cc0d9fd8b1d43397db3
- affected 31b58088292c7f00f0b81088bfb557285b0b6247 – < 2995ccec260caa9e85b3301a4aba1e66ed80ad74
- affected 2.6.19
- unaffected < 2.6.19
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
8
- https://git.kernel.org/stable/c/096dff1247037d329c04b3a5be0ecdfb1c5c7ac6 (opens in a new tab)
- https://git.kernel.org/stable/c/d39cf4a6d721b1ae21eb53bbf3e8cd984253d7ab (opens in a new tab)
- https://git.kernel.org/stable/c/759d91378203ea35fa9bca6726dcf0010de081fb (opens in a new tab)
- https://git.kernel.org/stable/c/036bc5661060702e798d215e81bb46da530965b3 (opens in a new tab)
- https://git.kernel.org/stable/c/01f3ce411711c2c919598ea25320a5a48f71edbc (opens in a new tab)
- https://git.kernel.org/stable/c/f0745496f7c171271cafd9457df3b914a483ddeb (opens in a new tab)
- https://git.kernel.org/stable/c/ae5347f3db1782c6118f6cc0d9fd8b1d43397db3 (opens in a new tab)
- https://git.kernel.org/stable/c/2995ccec260caa9e85b3301a4aba1e66ed80ad74 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-58983 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-72025)Record last updated .