Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.2, <= 6.6.55 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/56e415202b8a17de6496f4023e545fcb66f118ecPatch
- https://git.kernel.org/stable/c/bc212465326e8587325f520a052346f0b57360e6Patch
- https://git.kernel.org/stable/c/c64f5fc95e9612fdf75587c8e21e494e614c18e2Patch
- https://git.kernel.org/stable/c/cdf4bbbdb956d7426f687f38757ebca2a2759a0fPatch
FAQ
What is CVE-2024-49864?
CVE-2024-49864 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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...
How severe is CVE-2024-49864?
CVE-2024-49864 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-49864?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.