CVE-2025-22046: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: uprobes/x86: Harden uretprobe syscall trampoline check Jann reported a possible issue when trampoline_check_ip returns address near the bottom of the address space that is allowed to call into the syscall if uretprobes are not set up: https://lore.kernel.org/bpf/202502081235.5A6F352985@keescook/T/#m9d416df341b8fbc11737dacbcd29f0054413cbbf Though the mmap minimum address restrictions will typically prevent creating mappings there, let's make sure uretprobe syscall checks for that.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.11 — 6.12.23
linux	linux_kernel	6.13 — 6.13.11
linux	linux_kernel	6.14 — 6.14.2

References

Advisories & Patches

https://git.kernel.org/stable/c/b0065d712049c87e1994c6eac00c6a637e39b325 https://git.kernel.org/stable/c/c35771342e47d58ab9433f3be1c3c30f2c5fa4f3 https://git.kernel.org/stable/c/d4e48b8d59fe162938a5004ace698c847e6a3207 https://git.kernel.org/stable/c/fa6192adc32f4fdfe5b74edd5b210e12afd6ecc0

Frequently Asked Questions

What is CVE-2025-22046? +

In the Linux kernel, the following vulnerability has been resolved: uprobes/x86: Harden uretprobe syscall trampoline check Jann reported a possible issue when trampoline_check_ip returns address near the bottom of the address space that is allowed to call into the syscall if uretprobes are not set up: https://lore.kernel.org/bpf/202502081235.5A6F352985@keescook/T/#m9d416df341b8fbc11737dacbcd29f0054413cbbf Though the mmap minimum address restrictions will typically prevent creating mappings there, let's make sure uretprobe syscall checks for that. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-22046? +

CVE-2025-22046 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-22046? +

CVE-2025-22046 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-22046? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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