CVE-2026-63865

HIGH
MEDIUM Priority: 0.01 BB Relevance: 43/100
Published: 2026-07-19 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Changed
C: High
I: High
A: High

Description

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.

Affected Software (1)

VendorProductVersion
linux linux_kernel 5.11 – 5.15.209

Bug Bounty Relevance

43 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploitation Probability

0.13%
Raw Score 0.001270
Percentile 2.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00127
2026-10-28
0.00127

Intelligence Sources

nvd ref →