7.8
HIGH
CVSS 3.1
CVE-2026-72435
netfilter: ipset: fix order of kfree_rcu() and rcu_assign_pointer()
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix order of kfree_rcu() and rcu_assign_pointer() Sashiko pointed out that kfree_rcu() was called before rcu_assign_pointer() in handling the comment extension. Fix the order so that rcu_assign_pointer() called first.
Details
INFO
Published Date :
Aug. 15, 2026, 6:22 a.m.
Last Modified :
Aug. 17, 2026, 6:19 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Fix the order of RCU operations to prevent potential memory corruption.
- Apply kernel patch to correct RCU operation order.
- Update the Linux kernel to the patched version.
- Verify the integrity of the netfilter subsystem.
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-2026-72435.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72435 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-2026-72435
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-2026-72435 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72435 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': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'c9787d7c24ffd83019f379455e1b97fb4f0f75eb', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '6e98407cb94e035bba98956adc9096a76d8b2a9f', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '50b70f56f3baaff46599f59b2d93fa2540120776', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'd01b4b471f0fc5c396af62845e972ccf99cee29a', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'fcb565966534909377a16be5f7b065db2e25c8b5', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '8087bb360a936a6314d22b567e4b861656943eb6', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '93a775fd67f3ef34949a9523bfa69403ee74efdd', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '3ca9982a8882470aa0ac4e8bb9a552b181d1efcd', 'versionType': 'git'}], 'programFiles': ['net/netfilter/ipset/ip_set_core.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'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-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/netfilter/ipset/ip_set_core.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'c9787d7c24ffd83019f379455e1b97fb4f0f75eb', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '6e98407cb94e035bba98956adc9096a76d8b2a9f', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '50b70f56f3baaff46599f59b2d93fa2540120776', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'd01b4b471f0fc5c396af62845e972ccf99cee29a', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'fcb565966534909377a16be5f7b065db2e25c8b5', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '8087bb360a936a6314d22b567e4b861656943eb6', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '93a775fd67f3ef34949a9523bfa69403ee74efdd', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '3ca9982a8882470aa0ac4e8bb9a552b181d1efcd', 'versionType': 'git'}], 'programFiles': ['net/netfilter/ipset/ip_set_core.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'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': ['net/netfilter/ipset/ip_set_core.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': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'c9787d7c24ffd83019f379455e1b97fb4f0f75eb', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '6e98407cb94e035bba98956adc9096a76d8b2a9f', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '50b70f56f3baaff46599f59b2d93fa2540120776', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'd01b4b471f0fc5c396af62845e972ccf99cee29a', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': 'fcb565966534909377a16be5f7b065db2e25c8b5', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '8087bb360a936a6314d22b567e4b861656943eb6', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '93a775fd67f3ef34949a9523bfa69403ee74efdd', 'versionType': 'git'}, {'status': 'affected', 'version': 'b57b2d1fa53fe8563bdfc66a33b844463b9af285', 'lessThan': '3ca9982a8882470aa0ac4e8bb9a552b181d1efcd', 'versionType': 'git'}], 'programFiles': ['net/netfilter/ipset/ip_set_core.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '4.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'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-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/netfilter/ipset/ip_set_core.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix order of kfree_rcu() and rcu_assign_pointer() Sashiko pointed out that kfree_rcu() was called before rcu_assign_pointer() in handling the comment extension. Fix the order so that rcu_assign_pointer() called first. Added Reference https://git.kernel.org/stable/c/3ca9982a8882470aa0ac4e8bb9a552b181d1efcd Added Reference https://git.kernel.org/stable/c/50b70f56f3baaff46599f59b2d93fa2540120776 Added Reference https://git.kernel.org/stable/c/6e98407cb94e035bba98956adc9096a76d8b2a9f Added Reference https://git.kernel.org/stable/c/8087bb360a936a6314d22b567e4b861656943eb6 Added Reference https://git.kernel.org/stable/c/93a775fd67f3ef34949a9523bfa69403ee74efdd Added Reference https://git.kernel.org/stable/c/c9787d7c24ffd83019f379455e1b97fb4f0f75eb Added Reference https://git.kernel.org/stable/c/d01b4b471f0fc5c396af62845e972ccf99cee29a Added Reference https://git.kernel.org/stable/c/fcb565966534909377a16be5f7b065db2e25c8b5
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.