Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use-after-free of a severed iucv_path af_iucv queues not-yet-received message notifications on iucv->message_q, each holding a raw pointer to the connection's iucv_path. When the peer severs the connection, iucv_sever_path() frees that path with iucv_path_free() but leaves the notifications queued. A later recvmsg() drains message_q via iucv_process_message_q() and hands the stale path to message_receive() -- a use-after-free of the freed iucv_path. Drop the queued notifications when the path is severed; once the path is gone they can no longer be received. This also frees the notifications leaked when a socket is closed with messages still queued.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f0703c80e5156406ad947cb67fe277725b48080f before 5f08c5e50bcb4680069bd3f9edd5728308816ded; affected f0703c80e5156406ad947cb67fe277725b48080f before c24faf11bd31bfe0500aca12cbdd5a573a954a5d; affected f0703c80e5156406ad947cb67fe277725b48080f before 99ddb33748698296a6f17b9b34aa3d16a406bb3c; affected f0703c80e5156406ad947cb67fe277725b48080f before 23658b350b4107e8292045c2044983fd426fa15d; affected f0703c80e5156406ad947cb67fe277725b48080f before a5bbaddf69853117f28173c3f5c8fc14c6b2ec82; affected f0703c80e5156406ad947cb67fe277725b48080f before 900cd6d8119b7f3ae5c4bf82f922ff5957df43db; affected f0703c80e5156406ad947cb67fe277725b48080f before f579582c03ed526281a8450159baf1d35099a85f; affected f0703c80e5156406ad947cb67fe277725b48080f before be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a |
| Linux / Linux | affected 2.6.24; unaffected 0 before 2.6.24; unaffected 5.10.265 through 5.10.*; unaffected 5.15.216 through 5.15.*; unaffected 6.1.183 through 6.1.*; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/5f08c5e50bcb4680069bd3f9edd5728308816ded
- https://git.kernel.org/stable/c/c24faf11bd31bfe0500aca12cbdd5a573a954a5d
- https://git.kernel.org/stable/c/99ddb33748698296a6f17b9b34aa3d16a406bb3c
- https://git.kernel.org/stable/c/23658b350b4107e8292045c2044983fd426fa15d
- https://git.kernel.org/stable/c/a5bbaddf69853117f28173c3f5c8fc14c6b2ec82
- https://git.kernel.org/stable/c/900cd6d8119b7f3ae5c4bf82f922ff5957df43db
- https://git.kernel.org/stable/c/f579582c03ed526281a8450159baf1d35099a85f
- https://git.kernel.org/stable/c/be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a
ADP enrichment
No English description supplied.
No references supplied.