CVE-2022-49258

High

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: ccree - Fix use after free in cc_cipher_exit() kfree_sensitive(ctx_p->user.key) will free the ctx_p->user.key. But ctx_p->user.key is still used in the next line, which will lead to a use after free. We can call kfree_sensitive() after dev_dbg() to avoid the uaf.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedFeb 26, 2025
First seenFeb 26, 2025

How to fix

Update
  • linux linux_kernel5.10.110, 5.15.33, 5.16.19, 5.17.2 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel4.17 ≤ v < 5.10.110, 5.11 ≤ v < 5.15.33, 5.16 ≤ v < 5.16.19, 5.17 ≤ v < 5.17.25.10.110, 5.15.33, 5.16.19, 5.17.2

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