CVE-2026-80571powerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak In papr_phy_attest_create_handle(), the params->cmd.length is not validated before use, which can result in a buffer overlow. Check it and return -EINVAL if it is either 0 or exceeds sizeof(params->cmd). Also, params is freed on the success path but not error. Free it on errors after memory allocation. And free it on negative fd.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 86900ab620a42396a749b506d4a187820fc3fabe builds before 828a8d1a9107aec6353d896882df8383accf7e80; from 86900ab620a42396a749b506d4a187820fc3fabe before ed98ce338f9a65c90cb930b088f1eb36de7181af; 86900ab620a42396a749b506d4a187820fc3fabe builds before 5b17f3f34391372faf03e79d947e0c50ab6dd258 | CNA record |
References
- https://git.kernel.org/stable/c/828a8d1a9107aec6353d896882df8383accf7e80
- https://git.kernel.org/stable/c/ed98ce338f9a65c90cb930b088f1eb36de7181af
- https://git.kernel.org/stable/c/5b17f3f34391372faf03e79d947e0c50ab6dd258
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.