PT-2024-33901 · Linux+8 · Linux Kernel+8
Qiao Ma
·
Published
2024-10-21
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Updated
2026-05-26
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CVE-2024-50067
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel versions prior to 6.12.0-rc3+
Description:
The issue is related to the uprobe functionality in the Linux kernel, which can lead to out-of-bounds memory access when fetching arguments. This occurs because the percpu buffer used by uprobe has a limited size, typically a page size, and the store trace args() function does not check if the data exceeds this size. As a result, large user-space strings or arrays can cause out-of-bounds memory access. The problem can be reproduced by building the kernel with CONFIG KASAN enabled, compiling a specific test program, and configuring uprobe with a particular offset. When the test program is run, the kernel's KASAN (Kernel Address Sanitizer) reports an error.
Recommendations:
To resolve the issue, update the Linux kernel to a version that includes the fix, which enforces the buffer's maxlen to be less than a page size to avoid store trace args() out-of-memory access.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Memory Corruption
Use After Free
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu