CVE-2024-50294

Summary

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix missing locking causing hanging calls

If a call gets aborted (e.g. because kafs saw a signal) between it being queued for connection and the I/O thread picking up the call, the abort will be prioritised over the connection and it will be removed from local->new_client_calls by rxrpc_disconnect_client_call() without a lock being held. This may cause other calls on the list to disappear if a race occurs.

Fix this by taking the client_call_lock when removing a call from whatever list its ->wait_link happens to be on.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d < 996a7208dadbf2cdda8d51444d5ee1fdd1ccbc92affected
LinuxLinux9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d < b1fdb0bb3b6513f5bd26f92369fd6ac1a2422d8baffected
LinuxLinux9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d < fc9de52de38f656399d2ce40f7349a6b5f86e787affected
LinuxLinux6.2affected
LinuxLinux0 < 6.2unaffected
LinuxLinux6.6.61 <= 6.6.*unaffected
LinuxLinux6.11.8 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References