ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec()
In the Linux kernel, the following vulnerability has been resolved: ima: Fix stack-out-of-bounds in is_bprm_creds_for_exec() KASAN reported a stack-out-of-bounds access in ima_appraise_measurement from is_bprm_creds_for_exec: BUG: KASAN: stack-out-of-bounds in ima_appraise_measurement+0x12dc/0x16a0 Read of size 1 at addr ffffc9000160f940 by task sudo/550 The buggy address belongs to stack of task sudo/550 and is located at offset 24 in frame: ima_appraise_measurement+0x0/0x16a0 This frame has 2 objects: [48, 56) 'file' [80, 148) 'hash' This is caused by using container_of on the *file pointer. This offset calculation is what triggers the stack-out-of-bounds error. In order to fix this, pass in a bprm_is_check boolean which can be set depending on how process_measurement is called. If the caller has a linux_binprm pointer and the function is BPRM_CHECK we can determine is_check and set it then. Otherwise set it to false.
CVE-2025-71306
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-2025-71306
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": "95b3cdafd7cb74414070893445a9b731793f7b55",
"lessThan": "0f39d936a34933ebfbdc13a04f0aba814d3b9709",
"versionType": "git"
},
{
"status": "affected",
"version": "95b3cdafd7cb74414070893445a9b731793f7b55",
"lessThan": "ab3d16da982a4ebb715d487dbf9dd66e3990d935",
"versionType": "git"
},
{
"status": "affected",
"version": "95b3cdafd7cb74414070893445a9b731793f7b55",
"lessThan": "377cae9851e8559e9d8b82a78c1ac0abeb18839c",
"versionType": "git"
}
],
"programFiles": [
"security/integrity/ima/ima.h",
"security/integrity/ima/ima_appraise.c",
"security/integrity/ima/ima_main.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.58",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.4",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"security/integrity/ima/ima.h",
"security/integrity/ima/ima_appraise.c",
"security/integrity/ima/ima_main.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-71306
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46090 · Revision 1
- Added to Heist Feed
- Publisher date