CVE-2024-49864
Severity CVSS v4.0:
Pending analysis
Type:
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
21/10/2024
Last modified:
13/11/2024
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
rxrpc: Fix a race between socket set up and I/O thread creation<br />
<br />
In rxrpc_open_socket(), it sets up the socket and then sets up the I/O<br />
thread that will handle it. This is a problem, however, as there&#39;s a gap<br />
between the two phases in which a packet may come into rxrpc_encap_rcv()<br />
from the UDP packet but we oops when trying to wake the not-yet created I/O<br />
thread.<br />
<br />
As a quick fix, just make rxrpc_encap_rcv() discard the packet if there&#39;s<br />
no I/O thread yet.<br />
<br />
A better, but more intrusive fix would perhaps be to rearrange things such<br />
that the socket creation is done by the I/O thread.
Impact
Base Score 3.x
4.70
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.2 (including) | 6.6.55 (including) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.10 (including) | 6.10.14 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.11 (including) | 6.11.3 (excluding) |
| cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page