PT-2024-6946 · Linux+7 · Linux Kernel+7
Syzbot
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Published
2024-08-30
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Updated
2025-09-29
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CVE-2024-46783
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 6.6.52
Description
The vulnerability is related to the
tcp bpf component in the Linux kernel. It occurs when the last message in psock->cork triggers flushing, resulting in a sk msg larger than the current message size being sent. In tcp bpf send verdict(), the copied variable becomes negative, leading to a bug. This issue can cause a kernel bug at net/socket.c:733 and may result in an internal error.Recommendations
To resolve this issue, update the Linux kernel to version 6.6.52 or later. If updating is not possible, consider disabling the
tcp bpf component as a temporary workaround to minimize the risk of exploitation. However, this may have performance implications and should be carefully evaluated before implementation.Exploit
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu