CVE-2025-22046: uprobes/x86: Harden uretprobe syscall trampoline check
In the Linux kernel, the following vulnerability has been resolved:
uprobes/x86: Harden uretprobe syscall trampoline check
Jann reported a possible issue when trampolinecheckip 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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2025-22046?
CVE-2025-22046 has a moderate severity rating due to its potential impact on system security.
How do I fix CVE-2025-22046?
To fix CVE-2025-22046, update the Linux kernel to the latest version available that addresses this vulnerability.
What systems are affected by CVE-2025-22046?
CVE-2025-22046 affects multiple versions of the Linux kernel between 6.11 and 6.14.2.
What type of vulnerability is CVE-2025-22046?
CVE-2025-22046 is a kernel vulnerability related to uprobes and syscall trampoline checks.
Is there a known exploit for CVE-2025-22046?
As of now, there are no publicly disclosed exploits for CVE-2025-22046.