s390/crypto: Fix missing scrub of temp buffers with AES ctr and gcm algorithm
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 6 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.10.210 to before 5.10.271; 5.15.149 to before 5.15.222; 6.1.76 to before 6.1.189; 6.6.15 to before 6.6.158; 6.7.3 to before 6.8 | 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.8 | Patch available | CNA |
| Linux | Linux | 6.8 and later | 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 5.10.210 to before 5.10.271; 5.15.149 to before 5.15.222; 6.1.76 to before 6.1.189; 6.6.15 to before 6.6.158; 6.7.3 to before 6.8 Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.8 Patch available CNA
- Linux VendorLinux Affected 6.8 and later Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.8
- Fix · CNA Linux (Linux) Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7, 7.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97592
- 2026-10-03 Alias added: GHSA-7286-x7mq-vc6j
- 2026-10-03 Fix available: Linux/[email protected], Linux/[email protected], Linux/Linux@538f00558db9a66aeff20c36f43692c178a0e0eb +5 · CNA
- 2026-10-03 4 new references · CNA
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-07 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/538f00558db9a66aeff20c36f43692c178a0e0eb
- https://git.kernel.org/stable/c/6ab772d675a885c3119bf0e79ea9e84756d7657a
- https://git.kernel.org/stable/c/e17b85eb8cee90a1200fa5e7806db7ffa08a0608
- https://git.kernel.org/stable/c/991c875310254a13b3a637bb279379c8c66e842d
- https://git.kernel.org/stable/c/11eca05d2062032e1f07d56be58ed0b99f4b1d63
- https://git.kernel.org/stable/c/8b90a47c4fba27bb4f2f086611742493629e9696
- https://git.kernel.org/stable/c/a83488cecb35f924b7541306ed84893bb9906196
- https://git.kernel.org/stable/c/8b7c3b6914f19caf648d05726a86af6326d3c2c6
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Sources
- CVE-2026-97592 · CVE Program
- CVE-2026-97592 · NVD
- FIRST EPSS
- GHSA-7286-x7mq-vc6j · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97592 · Red Hat security data · CC BY 4.0
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