CVE-2026-68140
CVE CVE-2026-68140EUVD EUVD-2026-55522Published 2026-08-10T11:59:03.000Z
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux f0703c80e5156406ad947cb67fe277725b48080f <23658b350b4107e8292045c2044983fd426fa15d; f0703c80e5156406ad947cb67fe277725b48080f <a5bbaddf69853117f28173c3f5c8fc14c6b2ec82; f0703c80e5156406ad947cb67fe277725b48080f <f579582c03ed526281a8450159baf1d35099a85f; f0703c80e5156406ad947cb67fe277725b48080f <900cd6d8119b7f3ae5c4bf82f922ff5957df43db; f0703c80e5156406ad947cb67fe277725b48080f <be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a; patch: 6.6.148; patch: 7.2-rc5; 2.6.24; patch: 0; patch: 6.12.101; patch: 7.1.6; patch: 6.18.42
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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