PT-2024-32738 · Linux+7 · Linux Kernel+7
Josh Hunt
·
Published
2024-09-10
·
Updated
2025-11-18
·
CVE-2024-47684
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 versions prior to 6.6.58
Description
A null pointer dereference vulnerability has been resolved in the Linux kernel. The issue occurs in the
tcp rearm rto() function, which is called from the tcp send loss probe() and tcp write timer handler() functions. The vulnerability can cause a kernel crash when a null pointer is dereferenced. The issue was initially found in the TLP path, but later also seen in the RACK case. The vulnerability is caused by a null skb pointer being passed to the tcp rto delta us() function.Recommendations
To resolve the issue, update the Linux kernel to version 6.6.58 or later.
For versions prior to 6.6.58, consider disabling the
tcp rearm rto() function as a temporary workaround until a patch is available.Exploit
Fix
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu