PT-2024-36908 · Linux+8 · Linux Kernel+8
Ignat Korchagin
·
Published
2024-10-15
·
Updated
2025-11-18
·
CVE-2024-56600
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 6.6.74
Description
A vulnerability in the Linux kernel has been resolved, where the
inet6 create() function did not properly clear a dangling sk pointer. The sock init data() function attaches the allocated sk pointer to the provided sock object. If inet6 create() fails later, the sk object is released, but the sock object retains the dangling sk pointer, which may cause a use-after-free error later.Recommendations
For Linux kernel versions prior to 6.6.74, update to version 6.6.74 or later to resolve the issue. As a temporary workaround, consider implementing custom error handling to clear the
sk pointer in case of an error in inet6 create(). Restrict access to the inet6 create() function to minimize the risk of exploitation until the update is applied.Exploit
Fix
Use After Free
Double Free
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu