CVE-2026-89588ACPI: APEI: GHES: fix ARM section length accounting after header
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: ACPI: APEI: GHES: fix ARM section length accounting after header In ghes_handle_arm_hw_error(), after skipping the cper_sec_proc_arm header with (err + 1), the remaining length was reduced by sizeof(err) (pointer size) instead of sizeof(*err) (structure size). That overestimates the bytes left for cper_arm_err_info records and can let the parser read past the CPER section when err_info_num is large enough relative to error_data_length. Use sizeof(*err) so the length accounting matches the pointer advance and the earlier sizeof(*err) size check.
- CVSS
- 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- 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
- Sep 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 242c652849d979d0133c315a42d9acea0ff88390 builds before 5ff385e9403e87ae33f65b8c38698d3b1e92cfde; 136093ba4161e0080088abff48273f6830a47766 builds before 452eb28e03015abec6d4bf6488ee567706ade4e1; from 87880af2d24e62a84ed19943dbdd524f097172f2 before b48b613073c3d652cb1823c15d16f7067cf4cee4; from 87880af2d24e62a84ed19943dbdd524f097172f2 before 903308ea40adf0577d82eab69882faf8836326ce; db103b8bd3a4aca69b1b5fe8831a6ed75ac4b3bd; from 6.12.75 before 6.12.109; from 6.18.16 before 6.18.50; from 6.19.6 before 6.20 | CNA record |
References
- https://git.kernel.org/stable/c/5ff385e9403e87ae33f65b8c38698d3b1e92cfde
- https://git.kernel.org/stable/c/452eb28e03015abec6d4bf6488ee567706ade4e1
- https://git.kernel.org/stable/c/b48b613073c3d652cb1823c15d16f7067cf4cee4
- https://git.kernel.org/stable/c/903308ea40adf0577d82eab69882faf8836326ce
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.