CVE-2026-97590

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < 7d1456d54b3c784cc2917c219a528092cefe30cdaffected
LinuxLinux6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < d7159d2132e9aa51af7acb51c6742d9b30f987b3affected
LinuxLinux6cd87cb5ef6ca50ae17c371482ceaab1d635e232 < 19a218b46b2471d370c11fb52040f36ac8d05d23affected
LinuxLinux6.16affected
LinuxLinux0 < 6.16unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc3 <= *unaffected

Weaknesses

References