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CVE-2026-97592

Unknown

Last modified

CVE-2026-97592 is a vulnerability of currently unknown severity. 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.

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= d07f951903fa9922c375b8ab1ce81b18a0034e3b, < 11eca05d2062032e1f07d56be58ed0b99f4b1d63; >= d07f951903fa9922c375b8ab1ce81b18a0034e3b, < 8b90a47c4fba27bb4f2f086611742493629e9696; >= d07f951903fa9922c375b8ab1ce81b18a0034e3b, < a83488cecb35f924b7541306ed84893bb9906196; >= d07f951903fa9922c375b8ab1ce81b18a0034e3b, < 8b7c3b6914f19caf648d05726a86af6326d3c2c6; cd51e26a3b89706beec64f2d8296cfb1c34e0c79; a7f580cdb42ec3d53bbb7c4e4335a98423703285; dbc9a791a70ea47be9f2acf251700fe254a2ab23; d68ac38895e84446848b7647ab9458d54cacba3e; e78f1a43e72daf77705ad5b9946de66fc708b874; >= 5.10.210, < 5.11; >= 5.15.149, < 5.16; >= 6.1.76, < 6.2; >= 6.6.15, < 6.7; >= 6.7.3, < 6.8
LinuxLinux6.8

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-97592?
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.
How severe is CVE-2026-97592?
Severity scoring for CVE-2026-97592 is pending analysis.
How do I fix CVE-2026-97592?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST