Answer in brief
CVE-2026-68141 records a Unknown severity vulnerability in net/af_iucv: fix NULL deref in afiucv_hs_callback_syn(). 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 | >=3881ac441f642d56503818123446f7298442236b <8bb111f87ded6acb9837ec9b45d6f02cda94c51f || >=3881ac441f642d56503818123446f7298442236b <46453b16f38ec7147351f7447e2aec6ea330f7b3 || >=3881ac441f642d56503818123446f7298442236b <33736ff5e7c97d3348ce812e8bd2e125d840743c || >=3881ac441f642d56503818123446f7298442236b <0e857185591fe79934427c9c0c1c31dc776be134 || >=3881ac441f642d56503818123446f7298442236b <47a5116e56a6b6fe1e909f244e39cd0fc26ceee4 | 8bb111f87ded6acb9837ec9b45d6f02cda94c51f, 46453b16f38ec7147351f7447e2aec6ea330f7b3, 33736ff5e7c97d3348ce812e8bd2e125d840743c, 0e857185591fe79934427c9c0c1c31dc776be134, 47a5116e56a6b6fe1e909f244e39cd0fc26ceee4 |
| Linux/Linuxgeneric | 3.2 | 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/af_iucv: fix NULL deref in afiucv_hs_callback_syn() afiucv_hs_callback_syn() allocates the child socket with GFP_ATOMIC. If the allocation fails, nsk is NULL. The connection-refused path is entered when the listen state check fails, the accept backlog is full, or nsk is NULL. The code unconditionally calls iucv_sock_kill(nsk) in that path. iucv_sock_kill() does not accept a NULL socket pointer and immediately dereferences sk via sock_flag(sk, SOCK_ZAPPED). When nsk is NULL, calling iucv_sock_kill(nsk) results in a NULL pointer dereference. Only call iucv_sock_kill() when a child socket was successfully allocated.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68141 records a Unknown severity vulnerability in net/af_iucv: fix NULL deref in afiucv_hs_callback_syn(). 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 | >=3881ac441f642d56503818123446f7298442236b <8bb111f87ded6acb9837ec9b45d6f02cda94c51f || >=3881ac441f642d56503818123446f7298442236b <46453b16f38ec7147351f7447e2aec6ea330f7b3 || >=3881ac441f642d56503818123446f7298442236b <33736ff5e7c97d3348ce812e8bd2e125d840743c || >=3881ac441f642d56503818123446f7298442236b <0e857185591fe79934427c9c0c1c31dc776be134 || >=3881ac441f642d56503818123446f7298442236b <47a5116e56a6b6fe1e909f244e39cd0fc26ceee4 | 8bb111f87ded6acb9837ec9b45d6f02cda94c51f, 46453b16f38ec7147351f7447e2aec6ea330f7b3, 33736ff5e7c97d3348ce812e8bd2e125d840743c, 0e857185591fe79934427c9c0c1c31dc776be134, 47a5116e56a6b6fe1e909f244e39cd0fc26ceee4 |
| Linux/Linuxgeneric | 3.2 | 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/af_iucv: fix NULL deref in afiucv_hs_callback_syn() afiucv_hs_callback_syn() allocates the child socket with GFP_ATOMIC. If the allocation fails, nsk is NULL. The connection-refused path is entered when the listen state check fails, the accept backlog is full, or nsk is NULL. The code unconditionally calls iucv_sock_kill(nsk) in that path. iucv_sock_kill() does not accept a NULL socket pointer and immediately dereferences sk via sock_flag(sk, SOCK_ZAPPED). When nsk is NULL, calling iucv_sock_kill(nsk) results in a NULL pointer dereference. Only call iucv_sock_kill() when a child socket was successfully allocated.
Quoted source text, attributed separately from HOL analysis.