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CVE-2026-72026
irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure imsic_early_acpi_init() allocates a firmware node before setting up the IMSIC state. If imsic_setup_state() fails, the function returns without freeing the allocated fwnode. Free the fwnode and clear the global pointer on this error path, matching the cleanup already done when imsic_early_probe() fails. [ tglx: Use a common cleanup path instead of copying code around ]

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-2026-72026 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
Solution
Ensure firmware nodes are freed on setup failure to prevent resource leaks.
  • Apply kernel patches for irqchip/irq-riscv-imsic-early.
  • Free allocated firmware nodes on error paths.
  • Clear global pointers on failure.
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-2026-72026.

URL Resource
https://git.kernel.org/stable/c/1358126fbed104e5657955d3ba029b283687ba02
https://git.kernel.org/stable/c/a27f17bad38c5fea3c73281517869af0089a0451
https://git.kernel.org/stable/c/a5a367756926de1c21a013ea5ed7fc2219f4cb4f
https://git.kernel.org/stable/c/b321a046d7717225c07ba3f4b7b0a4758c2f9d58
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-72026 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-2026-72026 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-2026-72026 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-2026-72026 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
    Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'a27f17bad38c5fea3c73281517869af0089a0451', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'a5a367756926de1c21a013ea5ed7fc2219f4cb4f', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'b321a046d7717225c07ba3f4b7b0a4758c2f9d58', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': '1358126fbed104e5657955d3ba029b283687ba02', 'versionType': 'git'}], 'programFiles': ['drivers/irqchip/irq-riscv-imsic-early.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.12'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.12', 'versionType': 'semver'}, {'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': ['drivers/irqchip/irq-riscv-imsic-early.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'a27f17bad38c5fea3c73281517869af0089a0451', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'a5a367756926de1c21a013ea5ed7fc2219f4cb4f', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'b321a046d7717225c07ba3f4b7b0a4758c2f9d58', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': '1358126fbed104e5657955d3ba029b283687ba02', 'versionType': 'git'}], 'programFiles': ['drivers/irqchip/irq-riscv-imsic-early.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.12'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.12', 'versionType': 'semver'}, {'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': ['drivers/irqchip/irq-riscv-imsic-early.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': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'a27f17bad38c5fea3c73281517869af0089a0451', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'a5a367756926de1c21a013ea5ed7fc2219f4cb4f', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': 'b321a046d7717225c07ba3f4b7b0a4758c2f9d58', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbe826b1c10699a70b81a441fe47b817d1019f37', 'lessThan': '1358126fbed104e5657955d3ba029b283687ba02', 'versionType': 'git'}], 'programFiles': ['drivers/irqchip/irq-riscv-imsic-early.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.12'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.12', 'versionType': 'semver'}, {'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': ['drivers/irqchip/irq-riscv-imsic-early.c'], 'defaultStatus': 'affected'}]
    Added Description In the Linux kernel, the following vulnerability has been resolved: irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure imsic_early_acpi_init() allocates a firmware node before setting up the IMSIC state. If imsic_setup_state() fails, the function returns without freeing the allocated fwnode. Free the fwnode and clear the global pointer on this error path, matching the cleanup already done when imsic_early_probe() fails. [ tglx: Use a common cleanup path instead of copying code around ]
    Added Reference https://git.kernel.org/stable/c/1358126fbed104e5657955d3ba029b283687ba02
    Added Reference https://git.kernel.org/stable/c/a27f17bad38c5fea3c73281517869af0089a0451
    Added Reference https://git.kernel.org/stable/c/a5a367756926de1c21a013ea5ed7fc2219f4cb4f
    Added Reference https://git.kernel.org/stable/c/b321a046d7717225c07ba3f4b7b0a4758c2f9d58
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
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