ACPI: APEI: GHES: fix ARM section length accounting after header

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89588
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:43 UTC
Updated2026-09-11 20:19:43 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 242c652849d979d0133c315a42d9acea0ff88390 5ff385e9403e87ae33f65b8c38698d3b1e92cfde git Not specified
CNA Linux Linux affected 136093ba4161e0080088abff48273f6830a47766 452eb28e03015abec6d4bf6488ee567706ade4e1 git Not specified
CNA Linux Linux affected 87880af2d24e62a84ed19943dbdd524f097172f2 b48b613073c3d652cb1823c15d16f7067cf4cee4 git Not specified
CNA Linux Linux affected 87880af2d24e62a84ed19943dbdd524f097172f2 903308ea40adf0577d82eab69882faf8836326ce git Not specified
CNA Linux Linux affected db103b8bd3a4aca69b1b5fe8831a6ed75ac4b3bd git Not specified
CNA Linux Linux affected 6.12.75 6.12.109 semver Not specified
CNA Linux Linux affected 6.18.16 6.18.50 semver Not specified
CNA Linux Linux affected 6.19.6 6.20 semver Not specified
CNA Linux Linux affected 7.0 Not specified
CNA Linux Linux unaffected 7.0 semver Not specified
CNA Linux Linux unaffected 6.12.109 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.4 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/903308ea40adf0577d82eab69882faf8836326ce 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/452eb28e03015abec6d4bf6488ee567706ade4e1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5ff385e9403e87ae33f65b8c38698d3b1e92cfde 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b48b613073c3d652cb1823c15d16f7067cf4cee4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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