s390/crypto: Fix missing scrub of temp buffers with PAES algorithm
Summary
| CVE | CVE-2026-97590 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-25 11:17:10 UTC |
| Updated | 2026-09-25 11:17:10 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix missing scrub of temp buffers with PAES algorithm In function ctr_paes_do_crypt() there is a buffer used to process remaining bytes < AES_BLOCK_SIZE. This buffer was not scrubbed and thus could lead to expose of unwanted data. Rework the code to explicitly scrub the buffer at the end of the function to avoid exposure of maybe sensitive data. In function __xts_2keys_prep_param() change the existing scrub to clean the whole param block instead of just the key field. |
Risk And Classification
EPSS: 0.001980000 probability, percentile 0.085850000 (date 2026-09-27)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 7d1456d54b3c784cc2917c219a528092cefe30cd git | Not specified |
| CNA | Linux | Linux | affected 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 d7159d2132e9aa51af7acb51c6742d9b30f987b3 git | Not specified |
| CNA | Linux | Linux | affected 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 19a218b46b2471d370c11fb52040f36ac8d05d23 git | Not specified |
| CNA | Linux | Linux | affected 6.16 | Not specified |
| CNA | Linux | Linux | unaffected 6.16 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.53 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.7 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc3 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/d7159d2132e9aa51af7acb51c6742d9b30f987b3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7d1456d54b3c784cc2917c219a528092cefe30cd | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/19a218b46b2471d370c11fb52040f36ac8d05d23 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.