0.0
NA
CVE-2026-72140
i2c: mlxbf: Fix use-after-free in mlxbf_i2c_init_resource()
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: i2c: mlxbf: Fix use-after-free in mlxbf_i2c_init_resource() If devm_platform_get_and_ioremap_resource() returns an error, mlxbf_i2c_init_resource() frees tmp_res before reading tmp_res->io to get the error code. This results in a use-after-free. Save the error code before freeing tmp_res.
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
Solution
Apply the kernel patch to fix the use-after-free vulnerability in the i2c driver.
- Update the Linux kernel to the patched version.
- Verify the fix is applied in the updated system.
- Reboot the system after applying the patch.
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-2026-72140.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72140 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-2026-72140
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-2026-72140 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72140 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': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '6a108c9f5a81bb7b29dbb1398be0089655b6bfd2', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'c4d9b6a0c9645366d9e4af8a6ac8347bd4c841aa', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'b398cbbbb9dd76210682a8c9aabd34c5168800b9', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '5290a52533e09c38374963f4bb0b35121fe555c7', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'ce960a1b2caa4ad08291f28d8bcf17ad5a864e54', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'e6a395a71f4652261d09b572a03c96052662a056', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'fb267770bf822064f510c9b46743f533d8fa8a5f', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '71356737a7a55c76fee847563e3d33f8e6dc6b6d', 'versionType': 'git'}], 'programFiles': ['drivers/i2c/busses/i2c-mlxbf.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.10', '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-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/i2c/busses/i2c-mlxbf.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '6a108c9f5a81bb7b29dbb1398be0089655b6bfd2', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'c4d9b6a0c9645366d9e4af8a6ac8347bd4c841aa', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'b398cbbbb9dd76210682a8c9aabd34c5168800b9', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '5290a52533e09c38374963f4bb0b35121fe555c7', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'ce960a1b2caa4ad08291f28d8bcf17ad5a864e54', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'e6a395a71f4652261d09b572a03c96052662a056', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'fb267770bf822064f510c9b46743f533d8fa8a5f', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '71356737a7a55c76fee847563e3d33f8e6dc6b6d', 'versionType': 'git'}], 'programFiles': ['drivers/i2c/busses/i2c-mlxbf.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.10', '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': ['drivers/i2c/busses/i2c-mlxbf.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': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '6a108c9f5a81bb7b29dbb1398be0089655b6bfd2', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'c4d9b6a0c9645366d9e4af8a6ac8347bd4c841aa', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'b398cbbbb9dd76210682a8c9aabd34c5168800b9', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '5290a52533e09c38374963f4bb0b35121fe555c7', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'ce960a1b2caa4ad08291f28d8bcf17ad5a864e54', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'e6a395a71f4652261d09b572a03c96052662a056', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': 'fb267770bf822064f510c9b46743f533d8fa8a5f', 'versionType': 'git'}, {'status': 'affected', 'version': 'b5b5b32081cd206baa6e58cca7f112d9723785d6', 'lessThan': '71356737a7a55c76fee847563e3d33f8e6dc6b6d', 'versionType': 'git'}], 'programFiles': ['drivers/i2c/busses/i2c-mlxbf.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.10', '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-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/i2c/busses/i2c-mlxbf.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: i2c: mlxbf: Fix use-after-free in mlxbf_i2c_init_resource() If devm_platform_get_and_ioremap_resource() returns an error, mlxbf_i2c_init_resource() frees tmp_res before reading tmp_res->io to get the error code. This results in a use-after-free. Save the error code before freeing tmp_res. Added Reference https://git.kernel.org/stable/c/5290a52533e09c38374963f4bb0b35121fe555c7 Added Reference https://git.kernel.org/stable/c/6a108c9f5a81bb7b29dbb1398be0089655b6bfd2 Added Reference https://git.kernel.org/stable/c/71356737a7a55c76fee847563e3d33f8e6dc6b6d Added Reference https://git.kernel.org/stable/c/b398cbbbb9dd76210682a8c9aabd34c5168800b9 Added Reference https://git.kernel.org/stable/c/c4d9b6a0c9645366d9e4af8a6ac8347bd4c841aa Added Reference https://git.kernel.org/stable/c/ce960a1b2caa4ad08291f28d8bcf17ad5a864e54 Added Reference https://git.kernel.org/stable/c/e6a395a71f4652261d09b572a03c96052662a056 Added Reference https://git.kernel.org/stable/c/fb267770bf822064f510c9b46743f533d8fa8a5f
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.