Answer in brief
CVE-2026-68140 records a Unknown severity vulnerability in net/iucv: fix use-after-free of a severed iucv_path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f0703c80e5156406ad947cb67fe277725b48080f <23658b350b4107e8292045c2044983fd426fa15d || >=f0703c80e5156406ad947cb67fe277725b48080f <a5bbaddf69853117f28173c3f5c8fc14c6b2ec82 || >=f0703c80e5156406ad947cb67fe277725b48080f <900cd6d8119b7f3ae5c4bf82f922ff5957df43db || >=f0703c80e5156406ad947cb67fe277725b48080f <f579582c03ed526281a8450159baf1d35099a85f || >=f0703c80e5156406ad947cb67fe277725b48080f <be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a | 23658b350b4107e8292045c2044983fd426fa15d, a5bbaddf69853117f28173c3f5c8fc14c6b2ec82, 900cd6d8119b7f3ae5c4bf82f922ff5957df43db, f579582c03ed526281a8450159baf1d35099a85f, be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a |
| Linux/Linuxgeneric | 2.6.24 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68140 records a Unknown severity vulnerability in net/iucv: fix use-after-free of a severed iucv_path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f0703c80e5156406ad947cb67fe277725b48080f <23658b350b4107e8292045c2044983fd426fa15d || >=f0703c80e5156406ad947cb67fe277725b48080f <a5bbaddf69853117f28173c3f5c8fc14c6b2ec82 || >=f0703c80e5156406ad947cb67fe277725b48080f <900cd6d8119b7f3ae5c4bf82f922ff5957df43db || >=f0703c80e5156406ad947cb67fe277725b48080f <f579582c03ed526281a8450159baf1d35099a85f || >=f0703c80e5156406ad947cb67fe277725b48080f <be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a | 23658b350b4107e8292045c2044983fd426fa15d, a5bbaddf69853117f28173c3f5c8fc14c6b2ec82, 900cd6d8119b7f3ae5c4bf82f922ff5957df43db, f579582c03ed526281a8450159baf1d35099a85f, be7cc4656eb1f54029610e82d1f0fdd3f9b5ec0a |
| Linux/Linuxgeneric | 2.6.24 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
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.
Quoted source text, attributed separately from HOL analysis.