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CVE PROGRAM SOURCE RECORD7.5 High

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • a275da62e8c111b897b9cb73eb91df2f4e475ca5 to < cdf4bbbdb956d7426f687f38757ebca2a2759a0faffected
  • a275da62e8c111b897b9cb73eb91df2f4e475ca5 to < 56e415202b8a17de6496f4023e545fcb66f118ecaffected
  • a275da62e8c111b897b9cb73eb91df2f4e475ca5 to < c64f5fc95e9612fdf75587c8e21e494e614c18e2affected
  • a275da62e8c111b897b9cb73eb91df2f4e475ca5 to < bc212465326e8587325f520a052346f0b57360e6affected

Linux Linux

Default version status: affected

  • 6.2affected
  • 0 to < 6.2unaffected
  • 6.6.55 to ≤ 6.6.*unaffected
  • 6.10.14 to ≤ 6.10.*unaffected
  • 6.11.3 to ≤ 6.11.*unaffected
  • 6.12 to ≤ *unaffected

References