In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY Since commit 8f4f68e788c3 ("crypto: pcrypt - Fix hungtask for PADATA_RESET"), the pcrypt encryption and decryption operations return -EAGAIN when the CPU goes online or offline. In alg_test(), a WARN is generated when pcrypt_aead_decrypt() or pcrypt_aead_encrypt() returns -EAGAIN, the unnecessary panic will occur when panic_on_warn set 1. Fix this issue by calling crypto layer directly without parallelization in that case.
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024122834-CVE-2024-56690-b77f@gregkh/T
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2025:20095 https://access.redhat.com/errata/RHSA-2025:20095
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:20518 https://access.redhat.com/errata/RHSA-2025:20518
This issue has been addressed in the following products: Red Hat Enterprise Linux 10.0 Extended Update Support Via RHSA-2025:21492 https://access.redhat.com/errata/RHSA-2025:21492
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2025:21563 https://access.redhat.com/errata/RHSA-2025:21563