CVE-2026-46235 Details
Description
In the Linux kernel, the following vulnerability has been resolved: media: saa7164: add ioremap return checks and cleanups Add checks for ioremap return values in saa7164_dev_setup(). If ioremap for BAR0 or BAR2 fails, release the already allocated PCI memory regions, remove the device from the global list, decrement the device count, and return -ENODEV. This prevents potential null pointer dereferences and ensures proper cleanup on memory mapping failures.
A vulnerability in the Linux kernel's handling of PCI memory mapping for the SAA7164 media device has been addressed. The issue arose because the initial implementation did not properly check the return values of the 'ioremap' function, which is crucial for mapping PCI memory regions. This oversight could lead to null pointer dereferences, potentially causing system instability or crashes. The vulnerability affects the Linux kernel stable tree, specifically in the media PCI SAA7164 driver.
Users can upgrade to the latest version of the Linux kernel stable tree, where this vulnerability has been fixed. Instructions for downloading the updated kernel can be found on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/23dee5990d2c27ed79567fd61ccfe6876768531a | kernel.org | Patch |
| https://git.kernel.org/stable/c/3ce8f3057c51bb0a66aa3fab0862be74e9f88684 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6047dc542fa404b5c187cc2c7906aaaaec6d11ed | kernel.org | Patch |
| https://git.kernel.org/stable/c/6c22a6d8e4c1507bba504aeebe80476144a373eb | kernel.org | Patch |
| https://git.kernel.org/stable/c/a9b83f46e52cf1239d780920d1a7a3e415f7b5d9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d51c60a498e83c9a79884c8e420f97e3885c9583 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.32, < 6.1.175 >= 6.2, < 6.6.140 >= 6.7, < 6.12.90 >= 6.13, < 6.18.32 >= 6.19, < 7.0.9 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 10, 2026 | Initial Analysis | [email protected] |
| Jun 1, 2026 | CVE Modified | kernel.org |
| May 28, 2026 | New CVE Received | kernel.org |