ACPI: APEI: GHES: fix ARM section length accounting after header
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.
CVE-2026-89588
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89588
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "242c652849d979d0133c315a42d9acea0ff88390",
"lessThan": "5ff385e9403e87ae33f65b8c38698d3b1e92cfde",
"versionType": "git"
},
{
"status": "affected",
"version": "136093ba4161e0080088abff48273f6830a47766",
"lessThan": "452eb28e03015abec6d4bf6488ee567706ade4e1",
"versionType": "git"
},
{
"status": "affected",
"version": "87880af2d24e62a84ed19943dbdd524f097172f2",
"lessThan": "b48b613073c3d652cb1823c15d16f7067cf4cee4",
"versionType": "git"
},
{
"status": "affected",
"version": "87880af2d24e62a84ed19943dbdd524f097172f2",
"lessThan": "903308ea40adf0577d82eab69882faf8836326ce",
"versionType": "git"
},
{
"status": "affected",
"version": "db103b8bd3a4aca69b1b5fe8831a6ed75ac4b3bd",
"versionType": "git"
},
{
"status": "affected",
"version": "6.12.75",
"lessThan": "6.12.109",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.18.16",
"lessThan": "6.18.50",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.19.6",
"lessThan": "6.20",
"versionType": "semver"
}
],
"programFiles": [
"drivers/acpi/apei/ghes.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "7.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.109",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/acpi/apei/ghes.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89588
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #35096 · Revision 1
- Added to Heist Feed
- Publisher date