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THREATINT
PUBLISHED

CVE-2024-49864

rxrpc: Fix a race between socket set up and I/O thread creation



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.

Reserved 2024-10-21 | Published 2024-10-21 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

a275da62e8c111b897b9cb73eb91df2f4e475ca5 before cdf4bbbdb956d7426f687f38757ebca2a2759a0f
affected

a275da62e8c111b897b9cb73eb91df2f4e475ca5 before 56e415202b8a17de6496f4023e545fcb66f118ec
affected

a275da62e8c111b897b9cb73eb91df2f4e475ca5 before c64f5fc95e9612fdf75587c8e21e494e614c18e2
affected

a275da62e8c111b897b9cb73eb91df2f4e475ca5 before bc212465326e8587325f520a052346f0b57360e6
affected

Default status
affected

6.2
affected

Any version before 6.2
unaffected

6.6.55
unaffected

6.10.14
unaffected

6.11.3
unaffected

6.12
unaffected

References

git.kernel.org/...c/cdf4bbbdb956d7426f687f38757ebca2a2759a0f

git.kernel.org/...c/56e415202b8a17de6496f4023e545fcb66f118ec

git.kernel.org/...c/c64f5fc95e9612fdf75587c8e21e494e614c18e2

git.kernel.org/...c/bc212465326e8587325f520a052346f0b57360e6

cve.org (CVE-2024-49864)

nvd.nist.gov (CVE-2024-49864)

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https://cve.threatint.eu/CVE/CVE-2024-49864

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