PT-2025-8329 · Linux+6 · Linux Kernel+6
Vincent Whitchurch
·
Published
2025-02-26
·
Updated
2025-06-11
·
CVE-2022-49395
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 5.18.0+
Description
The issue is related to an out-of-bounds read in LDT setup. The
syscall stub data() function expects the data count parameter to be the number of longs, not bytes. This can lead to a stack-out-of-bounds read. The problem occurs in the syscall stub data+0x70/0xe0 function and is caused by a memcpy operation. The estimated number of potentially affected devices is not specified.Recommendations
For Linux kernel versions prior to 5.18.0+, update to a version that includes the fix for the out-of-bounds read in LDT setup.
As a temporary workaround, consider restricting access to the
syscall stub data() function until a patch is available.Exploit
Fix
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Rocky Linux
Suse