kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address Read from an unsafe address with copy_from_kernel_nofault() in arch_adjust_kprobe_addr() because this function is used before checking the address is in text or not. Syzcaller bot found a bug and reported the case if user specifies inaccessible data area, arch_adjust_kprobe_addr() will cause a kernel panic. [ mingo: Clarified the comment. ]
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2024-26946
Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/stable/c/6417684315087904fffe8966d27ca74398c57dd6
- https://git.kernel.org/stable/c/f13edd1871d4fb4ab829aff629d47914e251bae3
- https://git.kernel.org/stable/c/20fdb21eabaeb8f78f8f701f56d14ea0836ec861
- https://git.kernel.org/stable/c/b69f577308f1070004cafac106dd1a44099e5483
- https://git.kernel.org/stable/c/4e51653d5d871f40f1bd5cf95cc7f2d8b33d063b
More from Linux
View All →Affected Vendor
Linux
View all reports →Affected Software
Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.