CVE-2026-68226
media: cx23885: add ioremap return check and cleanup
Description
In the Linux kernel, the following vulnerability has been resolved: media: cx23885: add ioremap return check and cleanup Add a check for the return value of pci_ioremap_bar() in cx23885_dev_setup(). If ioremap for BAR0 fails, release the already allocated PCI memory region, decrement the device count, and return -ENODEV. This prevents a potential null pointer dereference and ensures proper cleanup on memory mapping failure.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 5:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Apply kernel patch for cx23885 driver.
- Ensure ioremap return values are checked.
- Release PCI memory on failure.
- Decrement device count on failure.
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-2026-68226.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68226 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-2026-68226
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-2026-68226 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68226 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': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': '8fbdca4c99f68734e9b6c030973fb61a11bede15', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': '83540d86d717735b52a43e4ba1b784da5cc2310a', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'c68c4ce72feb6fcccc843eb3baa7af60189ed567', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'ff3c670a1de3a714f5644e37b9446fe7c3299fd3', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'a0701e387b46e2481c05b47f1235b954bfc2af3e', 'versionType': 'git'}], 'programFiles': ['drivers/media/pci/cx23885/cx23885-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': '2.6.24'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.24', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/pci/cx23885/cx23885-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': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': '8fbdca4c99f68734e9b6c030973fb61a11bede15', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': '83540d86d717735b52a43e4ba1b784da5cc2310a', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'c68c4ce72feb6fcccc843eb3baa7af60189ed567', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'ff3c670a1de3a714f5644e37b9446fe7c3299fd3', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'a0701e387b46e2481c05b47f1235b954bfc2af3e', 'versionType': 'git'}], 'programFiles': ['drivers/media/pci/cx23885/cx23885-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': '2.6.24'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.24', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/pci/cx23885/cx23885-core.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 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': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': '8fbdca4c99f68734e9b6c030973fb61a11bede15', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': '83540d86d717735b52a43e4ba1b784da5cc2310a', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'c68c4ce72feb6fcccc843eb3baa7af60189ed567', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'ff3c670a1de3a714f5644e37b9446fe7c3299fd3', 'versionType': 'git'}, {'status': 'affected', 'version': 'd19770e5178a4bc49641711246360c25781d20a4', 'lessThan': 'a0701e387b46e2481c05b47f1235b954bfc2af3e', 'versionType': 'git'}], 'programFiles': ['drivers/media/pci/cx23885/cx23885-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': '2.6.24'}, {'status': 'unaffected', 'version': '0', 'lessThan': '2.6.24', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/pci/cx23885/cx23885-core.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: media: cx23885: add ioremap return check and cleanup Add a check for the return value of pci_ioremap_bar() in cx23885_dev_setup(). If ioremap for BAR0 fails, release the already allocated PCI memory region, decrement the device count, and return -ENODEV. This prevents a potential null pointer dereference and ensures proper cleanup on memory mapping failure. Added Reference https://git.kernel.org/stable/c/83540d86d717735b52a43e4ba1b784da5cc2310a Added Reference https://git.kernel.org/stable/c/8fbdca4c99f68734e9b6c030973fb61a11bede15 Added Reference https://git.kernel.org/stable/c/a0701e387b46e2481c05b47f1235b954bfc2af3e Added Reference https://git.kernel.org/stable/c/c68c4ce72feb6fcccc843eb3baa7af60189ed567 Added Reference https://git.kernel.org/stable/c/ff3c670a1de3a714f5644e37b9446fe7c3299fd3