by Kastro
Paper/Archive/CVE-2026-53055

CVE-2026-53055

Linux Linux — crypto: hisilicon/sec2 - prevent req used-after-free for sec

EPSS 0.4%CVSS 9.8
critical.is priorityof 100
37
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 37.2.372 × 207.4No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Linuxf0ae287c50455f7be0d8dd45a803d403c7aa4d2e – < b375c3c7209cc59e40e97998aa9bc768369cca0eb375c3c7209cc59e40e97998aa9bc768369cca0eCNA
Linuxf0ae287c50455f7be0d8dd45a803d403c7aa4d2e – < ad73563f3a1edbfddf2724136c6a15826b354e18ad73563f3a1edbfddf2724136c6a15826b354e18CNA
Linuxf0ae287c50455f7be0d8dd45a803d403c7aa4d2e – < 67b53a660e6bf0da2fa8d8872e897a14d8059eaf67b53a660e6bf0da2fa8d8872e897a14d8059eafCNA
Linux6.176.18.33CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgit.kernel.org/stable/c/b375c3c7209cc59e40e97998aa9bc768369cca0erefgit.kernel.org/stable/c/ad73563f3a1edbfddf2724136c6a15826b354e18refgit.kernel.org/stable/c/67b53a660e6bf0da2fa8d8872e897a14d8059eaf