s390/crypto: Fix missing scrub of temp buffers with AES ctr and gcm algorithm
In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix missing scrub of temp buffers with AES ctr and gcm algorithm In function ctr_aes_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. When the buffer is used explicitly scrub it at the end of the code block to avoid exposure of maybe sensitive data. In a similar way the function gcm_aes_crypt() hat an error path where the CPACF param block was not scrubbed. Instead of return early now these error paths go to end of function where explicit scrubbing is done. Similar with the buffers which are part of the gcm_sg_walk structs from the variables gw_in and gw_out.
CVE-2026-97592
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-2026-97592
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.
[
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"vendor": "Linux",
"product": "Linux",
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{
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{
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{
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{
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],
"programFiles": [
"arch/s390/crypto/aes_s390.c"
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{
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"vendor": "Linux",
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{
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},
{
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{
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{
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},
{
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"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
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"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/s390/crypto/aes_s390.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97592
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38034 · Revision 1
- Added to Heist Feed
- Publisher date