CVE-2024-26946

medium

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. ]

References

https://git.kernel.org/stable/c/f13edd1871d4fb4ab829aff629d47914e251bae3

https://git.kernel.org/stable/c/b69f577308f1070004cafac106dd1a44099e5483

https://git.kernel.org/stable/c/6417684315087904fffe8966d27ca74398c57dd6

https://git.kernel.org/stable/c/4e51653d5d871f40f1bd5cf95cc7f2d8b33d063b

https://git.kernel.org/stable/c/20fdb21eabaeb8f78f8f701f56d14ea0836ec861

Details

Source: Mitre, NVD

Published: 2024-05-01

Updated: 2024-05-01

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium