High severity · published Jul 19, 2026
CVE-2026-63865
bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks
8.8
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.11 before 5.15.209; 5.16 before 6.1.175; 6.2 before 6.6.141; 6.7 before 6.12.91; 6.13 before 6.18.33; 6.19 before 7.0.10 · source: NVD
LI
Linux · Linux
423f16108c9d832bd96059d5c882c8ef6d76eb96 before 452a927cddcd67478d030e646f41cb904a93156f; 423f16108c9d832bd96059d5c882c8ef6d76eb96 before f0fc2a9828171205244a28013f02889f50b71c9f; 423f16108c9d832bd96059d5c882c8ef6d76eb96 before 26b380a3ca0b605fd8860995ed6a208f276dd316; 423f16108c9d832bd96059d5c882c8ef6d76eb96 before 0d918263c9bfc86078edb2e2f7302a0c6ce42b7c; 423f16108c9d832bd96059d5c882c8ef6d76eb96 before 281f2a214565a5cbf8b7355a65738d80bd19b8c5; 423f16108c9d832bd96059d5c882c8ef6d76eb96 before 989f1b93907de1753a814996222da375f07e579b; +2 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63865
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-63865
Patch
https://git.kernel.org/stable/c/0d918263c9bfc86078edb2e2f7302a0c6ce42b7c
Patch
https://git.kernel.org/stable/c/26b380a3ca0b605fd8860995ed6a208f276dd316
Patch
https://git.kernel.org/stable/c/281f2a214565a5cbf8b7355a65738d80bd19b8c5
Patch
https://git.kernel.org/stable/c/452a927cddcd67478d030e646f41cb904a93156f
Patch
https://git.kernel.org/stable/c/989f1b93907de1753a814996222da375f07e579b
Patch
https://git.kernel.org/stable/c/beaf0e96b1da74549a6cabd040f9667d83b2e97e
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