CVE-2026-63865

bpf: Drop task_to_inode and inet_conn_established from lsm sleepable hooks

HIGH
8.8
CVSS Score
Published: July 19, 2026 at 02:04 PM UTC
Updated: October 26, 2026 at 04:51 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH8.8
Exploit prediction
EPSS 0.1%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.11 ≤ v < 5.15.2095.16 ≤ v < 6.1.1756.13 ≤ v < 6.18.336.19 ≤ v < 7.0.106.2 ≤ v < 6.6.1416.7 ≤ v < 6.12.91423f16108c9d832bd96059d5c882c8ef6d76eb965.11
Vendor states this is fixed in 0d918263c9bfc86078edb2e2f7302a0c6ce42b7c (fixed)
Vendor states this is fixed in 26b380a3ca0b605fd8860995ed6a208f276dd316 (fixed)
Vendor states this is fixed in 281f2a214565a5cbf8b7355a65738d80bd19b8c5 (fixed)
Vendor states this is fixed in 452a927cddcd67478d030e646f41cb904a93156f (fixed)
Vendor states this is fixed in 989f1b93907de1753a814996222da375f07e579b (fixed)
Vendor states this is fixed in beaf0e96b1da74549a6cabd040f9667d83b2e97e (fixed)
Vendor states this is fixed in f0fc2a9828171205244a28013f02889f50b71c9f (fixed)
Vendor states this is fixed in 5.11 (unaffected)
Vendor states this is fixed in 5.15.209 (unaffected)
Vendor states this is fixed in 6.1.175 (unaffected)
Vendor states this is fixed in 6.12.91 (unaffected)
Vendor states this is fixed in 6.18.33 (unaffected)
Vendor states this is fixed in 6.6.141 (unaffected)
Vendor states this is fixed in 7.0.10 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

CVSS

8.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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