CVE-2024-49864
MEDIUM EPSS 6.9%
Published Oct 21, 20241y ago · Modified Jun 17, 20261w ago
4.7 CVSS 3.1
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix a race between socket set up and I/O thread creation In rxrpc_open_socket(), it sets up the socket and then sets up the I/O thread that will handle it. This is a problem, however, as there's a gap between the two phases in which a packet may come into rxrpc_encap_rcv() from the UDP packet but we oops when trying to wake the not-yet created I/O thread. As a quick fix, just make rxrpc_encap_rcv() discard the packet if there's no I/O thread yet. A better, but more intrusive fix would perhaps be to rearrange things such that the socket creation is done by the I/O thread.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
6.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-362
Affected Products 5
References 4
- git.kernel.org https://git.kernel.org/stable/c/56e415202b8a17de6496f4023e545fcb66f118ec
- git.kernel.org https://git.kernel.org/stable/c/bc212465326e8587325f520a052346f0b57360e6
- git.kernel.org https://git.kernel.org/stable/c/c64f5fc95e9612fdf75587c8e21e494e614c18e2
- git.kernel.org https://git.kernel.org/stable/c/cdf4bbbdb956d7426f687f38757ebca2a2759a0f
Remediation
- git.kernel.org https://git.kernel.org/stable/c/56e415202b8a17de6496f4023e545fcb66f118ec
- git.kernel.org https://git.kernel.org/stable/c/bc212465326e8587325f520a052346f0b57360e6
- git.kernel.org https://git.kernel.org/stable/c/c64f5fc95e9612fdf75587c8e21e494e614c18e2
- git.kernel.org https://git.kernel.org/stable/c/cdf4bbbdb956d7426f687f38757ebca2a2759a0f