PT-2024-33931 · Linux+11 · Linux Kernel+11
Published
2024-11-05
·
Updated
2025-10-03
·
CVE-2024-50099
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel (affected versions not specified)
Description:
The issue concerns the Linux kernel's arm64 probes, specifically the removal of broken LDR (literal) uprobe support. The
simulate ldr literal() and simulate ldrsw literal() functions are unsafe for use with uprobes as they access memory with plain C accesses, which can lead to faults and kernel thread kills. There are three key problems:- The plain C accesses lack corresponding extable entries, resulting in BUG() and potential lockup or panic.
- These accesses are subject to HW PAN and SW PAN, causing faults when simulating user instructions on systems with these features.
- The plain C accesses are privileged, running in kernel context and potentially accessing a small range of kernel virtual addresses.
Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu