CVE-2021-46994

In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix resume from sleep before interface was brought up Since 8ce8c0abcba3 the driver queues work via priv->restart_work when resuming after suspend, even when the interface was not previously enabled. This causes a null dereference error as the workqueue is only allocated and initialized in mcp251x_open(). To fix this we move the workqueue init to mcp251x_can_probe() as there is no reason to do it later and repeat it whenever mcp251x_open() is called. [mkl: fix error handling in mcp251x_stop()]
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

06 Dec 2024, 14:42

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-476
References () https://git.kernel.org/stable/c/03c427147b2d3e503af258711af4fc792b89b0af - () https://git.kernel.org/stable/c/03c427147b2d3e503af258711af4fc792b89b0af - Patch
References () https://git.kernel.org/stable/c/6f8f1c27b577de15f69fefce3c502bb6300d825c - () https://git.kernel.org/stable/c/6f8f1c27b577de15f69fefce3c502bb6300d825c - Patch
References () https://git.kernel.org/stable/c/e1e10a390fd9479209c4d834d916ca5e6d5d396b - () https://git.kernel.org/stable/c/e1e10a390fd9479209c4d834d916ca5e6d5d396b - Patch
References () https://git.kernel.org/stable/c/eecb4df8ec9f896b19ee05bfa632ac6c1dcd8f21 - () https://git.kernel.org/stable/c/eecb4df8ec9f896b19ee05bfa632ac6c1dcd8f21 - Patch

Information

Published : 2024-02-28 09:15

Updated : 2024-12-06 14:42


NVD link : CVE-2021-46994

Mitre link : CVE-2021-46994

CVE.ORG link : CVE-2021-46994


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference