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.
Metrics
CVSS 3.1 4.7/10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= a275da62e8c111b897b9cb73eb91df2f4e475ca5, < cdf4bbbdb956d7426f687f38757ebca2a2759a0f; >= a275da62e8c111b897b9cb73eb91df2f4e475ca5, < 56e415202b8a17de6496f4023e545fcb66f118ec; >= a275da62e8c111b897b9cb73eb91df2f4e475ca5, < c64f5fc95e9612fdf75587c8e21e494e614c18e2; >= a275da62e8c111b897b9cb73eb91df2f4e475ca5, < bc212465326e8587325f520a052346f0b57360e6 |
| Linux | Linux | 6.2 |
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
Timeline
- Published
- Oct 21, 2024
- Last modified
- Aug 4, 2026
- NVD status
- Modified