CVE-2026-53055
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux Kernel
PublishedJun 24, 2026
First seenJun 24, 2026
How to fix
Update
- linux linux_kernel6.18.33, 7.0.10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.17 ≤ v < 6.18.33, 6.19 ≤ v < 7.0.10 | 6.18.33, 7.0.10 |
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