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.
Affected versions
Linux kernel versions
5.10.210,
5.15.149,
6.1.76,
6.6.15,
6.7.3,
6.8
and later are affected. 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-rc3
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-97592?
CVE-2026-97592 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.10.210 onward and has been patched in 5.10.271, 5.15.222, 6.1.189 and others. CVE-2026-97592 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-97592?
Yes. CVE-2026-97592 has been patched. Fixed versions include 5.10.271, 5.15.222, 6.1.189 and others. If you are running Linux kernel 5.10.210 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-97592 actively exploited?
No. CVE-2026-97592 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.