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7.8
HIGH CVSS 3.1
CVE-2026-72110
bpf,fork: wipe ->bpf_storage before bailouts that access it
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: bpf,fork: wipe ->bpf_storage before bailouts that access it Currently, copy_process() can bail out to free_task() before p->bpf_storage has been initialized, with this call graph (shown here for the !CONFIG_MEMCG case): copy_process dup_task_struct arch_dup_task_struct [copies the entire task_struct, including ->bpf_storage member] [RLIMIT_NPROC check fails] delayed_free_task free_task bpf_task_storage_free rcu_dereference(task->bpf_storage) bpf_local_storage_destroy In this case, the nascent task's ->bpf_storage member that bpf_local_storage_destroy() operates on is a plain copy of the parent's ->bpf_storage pointer, not a real initialized pointer. This leads to badness (kernel hangs, UAF). This is reachable as long as the process calling fork() has been inserted into a task storage map.

Details
INFO

Published Date :

Aug. 15, 2026, 6:21 a.m.

Last Modified :

Aug. 17, 2026, 6:18 a.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2026-72110 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.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Apply kernel patch to prevent use-after-free by clearing bpf_storage pointer.
  • Update the Linux kernel to the latest version.
  • Apply the provided patch for bpf and fork vulnerabilities.
  • Ensure bpf_storage is properly initialized before access.
  • Reboot the system after applying updates.
References
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-2026-72110.

URL Resource
https://git.kernel.org/stable/c/43f0005f81b8ce3be962d653cde8db9022f1e9b0
https://git.kernel.org/stable/c/9b51a6155d14389876916726430da30eabb1d4ed
https://git.kernel.org/stable/c/9cff220ddb65b022cc668bb652200742476e744c
https://git.kernel.org/stable/c/c3fd6f28c7ce1142a3b23dbb840eaa4777de1d74
https://git.kernel.org/stable/c/c4f626ddf2350652ad2f79daf1f10847f3f6eabd
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-72110 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-2026-72110 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-2026-72110 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-72110 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.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 17, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': 'c3fd6f28c7ce1142a3b23dbb840eaa4777de1d74', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '9cff220ddb65b022cc668bb652200742476e744c', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': 'c4f626ddf2350652ad2f79daf1f10847f3f6eabd', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '43f0005f81b8ce3be962d653cde8db9022f1e9b0', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '9b51a6155d14389876916726430da30eabb1d4ed', 'versionType': 'git'}], 'programFiles': ['kernel/fork.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.13', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['kernel/fork.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': 'c3fd6f28c7ce1142a3b23dbb840eaa4777de1d74', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '9cff220ddb65b022cc668bb652200742476e744c', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': 'c4f626ddf2350652ad2f79daf1f10847f3f6eabd', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '43f0005f81b8ce3be962d653cde8db9022f1e9b0', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '9b51a6155d14389876916726430da30eabb1d4ed', 'versionType': 'git'}], 'programFiles': ['kernel/fork.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.13', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['kernel/fork.c'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 15, 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': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': 'c3fd6f28c7ce1142a3b23dbb840eaa4777de1d74', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '9cff220ddb65b022cc668bb652200742476e744c', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': 'c4f626ddf2350652ad2f79daf1f10847f3f6eabd', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '43f0005f81b8ce3be962d653cde8db9022f1e9b0', 'versionType': 'git'}, {'status': 'affected', 'version': 'a10787e6d58c24b51e91c19c6d16c5da89fcaa4b', 'lessThan': '9b51a6155d14389876916726430da30eabb1d4ed', 'versionType': 'git'}], 'programFiles': ['kernel/fork.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.13'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.13', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['kernel/fork.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: bpf,fork: wipe ->bpf_storage before bailouts that access it Currently, copy_process() can bail out to free_task() before p->bpf_storage has been initialized, with this call graph (shown here for the !CONFIG_MEMCG case): copy_process dup_task_struct arch_dup_task_struct [copies the entire task_struct, including ->bpf_storage member] [RLIMIT_NPROC check fails] delayed_free_task free_task bpf_task_storage_free rcu_dereference(task->bpf_storage) bpf_local_storage_destroy In this case, the nascent task's ->bpf_storage member that bpf_local_storage_destroy() operates on is a plain copy of the parent's ->bpf_storage pointer, not a real initialized pointer. This leads to badness (kernel hangs, UAF). This is reachable as long as the process calling fork() has been inserted into a task storage map.
    Added Reference https://git.kernel.org/stable/c/43f0005f81b8ce3be962d653cde8db9022f1e9b0
    Added Reference https://git.kernel.org/stable/c/9b51a6155d14389876916726430da30eabb1d4ed
    Added Reference https://git.kernel.org/stable/c/9cff220ddb65b022cc668bb652200742476e744c
    Added Reference https://git.kernel.org/stable/c/c3fd6f28c7ce1142a3b23dbb840eaa4777de1d74
    Added Reference https://git.kernel.org/stable/c/c4f626ddf2350652ad2f79daf1f10847f3f6eabd
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
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Scope
Confidentiality Impact
Integrity Impact
Availability Impact