In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory (req) before the transmission function finishes. If the software subsequently accesses this req, a use-after-free error will occur. The qp_ctx memory exists throughout the packet sending process, so replace the req with the qp_ctx.

A flaw was found in the Linux kernel's `hisilicon/sec2` cryptographic module. Under heavy system load during packet transmission, the hardware may free request memory before the software completes its processing. This can lead to a use-after-free error when the software attempts to access the freed memory, potentially resulting in system instability or a denial of service.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-53055 https://nvd.nist.gov/vuln/detail/CVE-2026-53055 https://lore.kernel.org/linux-cve-announce/2026062400-CVE-2026-53055-6f65@gregkh/T