CVE-2026-63865: 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 u
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-63865
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-638650.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-63865 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- highUSN-8620-4: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
- highUSN-8620-3: Linux kernel (Intel IoTG) vulnerabilitiesubuntu
- highUSN-8620-2: Linux kernel (Azure FIPS) vulnerabilitiesubuntu
- highUSN-8620-1: Linux kernel vulnerabilitiesubuntu
- highUSN-8619-1: Linux kernel (HWE) vulnerabilitiesubuntu
- highUSN-8595-3: Linux kernel (AWS) vulnerabilitiesubuntu
- highUSN-8574-3: Linux kernel vulnerabilitiesubuntu
- highUSN-8618-1: Linux kernel vulnerabilitiesubuntu
- highUSN-8610-1: Linux kernel (Azure CVM) vulnerabilitiesubuntu
- highUSN-8575-3: Linux kernel vulnerabilitiesubuntu
- highUSN-8609-1: Linux kernel (Azure CVM) vulnerabilitiesubuntu
- highUSN-8608-1: Linux kernel (Azure FIPS) vulnerabilitiesubuntu
Recent advisories for In the Linux
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- high[NEW] [high] Red Hat Enterprise Linux (librest, pipewire): Multiple vulnerabilitiescert-bund · 2026-08-03
- high[UPDATE] [high] Linux Kernel: Multiple Vulnerabilitiescert-bund · 2026-08-03
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund · 2026-08-03
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-03
- medium[UPDATE] [medium] Linux Kernel: Multiple Vulnerabilitiescert-bund · 2026-08-03
- high[UPDATE] [high] Linux Kernel: Multiple vulnerabilitiescert-bund · 2026-08-03
More from NVD Recent CVEs
- unknownCVE-2026-69249: python-cryptography is a package designed to expose cryptographic primitives and recipes to Py…2026-08-03
- unknownCVE-2026-69248: cryptography is a package designed to expose cryptographic primitives and recipes to Python de…2026-08-03
- unknownCVE-2026-69247: cryptography is a package designed to expose cryptographic primitives and recipes to Python de…2026-08-03
- unknownCVE-2026-67977: An integer overflow in the Svc::FileDownlink::SendPartial component of fprime framework v4.2.2…2026-08-03
- unknownCVE-2026-67975: Incorrect access control in NASA cFS v7.0.1 allows attackers to arbitrarily remove low-index s…2026-08-03