Answer in brief
CVE-2026-63865 records a High severity (CVSS 8.8) 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.
CVSS is 8.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| 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
Oct 26, 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.