CVE-2026-63865
bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks
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.
INFO
Published Date :
July 19, 2026, 3:16 p.m.
Last Modified :
July 19, 2026, 3:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-63865
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Verify the patch addresses the specific LSM hook issues.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-63865.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-63865 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-63865
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-63865 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-63865 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 19, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '423f16108c9d832bd96059d5c882c8ef6d76eb96', 'lessThan': '452a927cddcd67478d030e646f41cb904a93156f', 'versionType': 'git'}, {'status': 'affected', 'version': '423f16108c9d832bd96059d5c882c8ef6d76eb96', 'lessThan': 'f0fc2a9828171205244a28013f02889f50b71c9f', 'versionType': 'git'}, {'status': 'affected', 'version': '423f16108c9d832bd96059d5c882c8ef6d76eb96', 'lessThan': '26b380a3ca0b605fd8860995ed6a208f276dd316', 'versionType': 'git'}, {'status': 'affected', 'version': '423f16108c9d832bd96059d5c882c8ef6d76eb96', 'lessThan': '0d918263c9bfc86078edb2e2f7302a0c6ce42b7c', 'versionType': 'git'}, {'status': 'affected', 'version': '423f16108c9d832bd96059d5c882c8ef6d76eb96', 'lessThan': '281f2a214565a5cbf8b7355a65738d80bd19b8c5', 'versionType': 'git'}, {'status': 'affected', 'version': '423f16108c9d832bd96059d5c882c8ef6d76eb96', 'lessThan': '989f1b93907de1753a814996222da375f07e579b', 'versionType': 'git'}, {'status': 'affected', 'version': '423f16108c9d832bd96059d5c882c8ef6d76eb96', 'lessThan': 'beaf0e96b1da74549a6cabd040f9667d83b2e97e', 'versionType': 'git'}], 'programFiles': ['kernel/bpf/bpf_lsm.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.15.209', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.175', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.141', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.91', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['kernel/bpf/bpf_lsm.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/0d918263c9bfc86078edb2e2f7302a0c6ce42b7c Added Reference https://git.kernel.org/stable/c/26b380a3ca0b605fd8860995ed6a208f276dd316 Added Reference https://git.kernel.org/stable/c/281f2a214565a5cbf8b7355a65738d80bd19b8c5 Added Reference https://git.kernel.org/stable/c/452a927cddcd67478d030e646f41cb904a93156f Added Reference https://git.kernel.org/stable/c/989f1b93907de1753a814996222da375f07e579b Added Reference https://git.kernel.org/stable/c/beaf0e96b1da74549a6cabd040f9667d83b2e97e Added Reference https://git.kernel.org/stable/c/f0fc2a9828171205244a28013f02889f50b71c9f