s390/crypto: Fix skcipher_walk return code handling in aes_s390
In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix skcipher_walk return code handling in aes_s390 The return codes from skcipher_walk_virt() were not properly checked before entering the processing loops in ecb_aes_crypt() and ctr_aes_crypt(). If skcipher_walk_virt() fails, the walk structure may be in an undefined state, and attempting to process data could lead to incorrect behavior or accessing uninitialized memory. Add proper return code checking to ensure correct handling of the walk initialization and walk advance and eventually return to the caller with that return code.
CVE-2026-98387
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-2026-98387
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": "7988fb2c03c8cf9936f851ab19a6d21b3c3411c0",
"lessThan": "89b58645646d1dac34162cc2597f42266bfbf930",
"versionType": "git"
},
{
"status": "affected",
"version": "7988fb2c03c8cf9936f851ab19a6d21b3c3411c0",
"lessThan": "35c3f97569306050e818fa18e17fa97c358f0f28",
"versionType": "git"
},
{
"status": "affected",
"version": "7988fb2c03c8cf9936f851ab19a6d21b3c3411c0",
"lessThan": "aea3e1588f08e381a7a57b2bf1a60cc2347904cd",
"versionType": "git"
},
{
"status": "affected",
"version": "7988fb2c03c8cf9936f851ab19a6d21b3c3411c0",
"lessThan": "15fa028589c3a2545f0bff355eff06d5844196bf",
"versionType": "git"
}
],
"programFiles": [
"arch/s390/crypto/aes_s390.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/s390/crypto/aes_s390.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98387
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38454 · Revision 1
- Added to Heist Feed
- Publisher date