Answer in brief
CVE-2026-63865 records a Unknown severity vulnerability in bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks. 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.
Answer in brief
CVE-2026-63865 records a Unknown severity vulnerability in bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks. 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 | >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <452a927cddcd67478d030e646f41cb904a93156f || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <f0fc2a9828171205244a28013f02889f50b71c9f || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <26b380a3ca0b605fd8860995ed6a208f276dd316 || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <0d918263c9bfc86078edb2e2f7302a0c6ce42b7c || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <281f2a214565a5cbf8b7355a65738d80bd19b8c5 || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <989f1b93907de1753a814996222da375f07e579b || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <beaf0e96b1da74549a6cabd040f9667d83b2e97e | 452a927cddcd67478d030e646f41cb904a93156f, f0fc2a9828171205244a28013f02889f50b71c9f, 26b380a3ca0b605fd8860995ed6a208f276dd316, 0d918263c9bfc86078edb2e2f7302a0c6ce42b7c, 281f2a214565a5cbf8b7355a65738d80bd19b8c5, 989f1b93907de1753a814996222da375f07e579b, beaf0e96b1da74549a6cabd040f9667d83b2e97e |
| Linux/Linuxgeneric | 5.11 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks bpf_lsm_task_to_inode() is called under rcu_read_lock() and bpf_lsm_inet_conn_established() is called from softirq context, so neither hook can be used by sleepable LSM programs.
Quoted source text, attributed separately from HOL analysis.
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 | >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <452a927cddcd67478d030e646f41cb904a93156f || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <f0fc2a9828171205244a28013f02889f50b71c9f || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <26b380a3ca0b605fd8860995ed6a208f276dd316 || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <0d918263c9bfc86078edb2e2f7302a0c6ce42b7c || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <281f2a214565a5cbf8b7355a65738d80bd19b8c5 || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <989f1b93907de1753a814996222da375f07e579b || >=423f16108c9d832bd96059d5c882c8ef6d76eb96 <beaf0e96b1da74549a6cabd040f9667d83b2e97e | 452a927cddcd67478d030e646f41cb904a93156f, f0fc2a9828171205244a28013f02889f50b71c9f, 26b380a3ca0b605fd8860995ed6a208f276dd316, 0d918263c9bfc86078edb2e2f7302a0c6ce42b7c, 281f2a214565a5cbf8b7355a65738d80bd19b8c5, 989f1b93907de1753a814996222da375f07e579b, beaf0e96b1da74549a6cabd040f9667d83b2e97e |
| Linux/Linuxgeneric | 5.11 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks bpf_lsm_task_to_inode() is called under rcu_read_lock() and bpf_lsm_inet_conn_established() is called from softirq context, so neither hook can be used by sleepable LSM programs.
Quoted source text, attributed separately from HOL analysis.