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…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
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()]
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/03c427147b2d3e503af258711af4fc792b89b0afPatch
- https://git.kernel.org/stable/c/6f8f1c27b577de15f69fefce3c502bb6300d825cPatch
- https://git.kernel.org/stable/c/e1e10a390fd9479209c4d834d916ca5e6d5d396bPatch
- https://git.kernel.org/stable/c/eecb4df8ec9f896b19ee05bfa632ac6c1dcd8f21Patch
- https://git.kernel.org/stable/c/03c427147b2d3e503af258711af4fc792b89b0afPatch
- https://git.kernel.org/stable/c/6f8f1c27b577de15f69fefce3c502bb6300d825cPatch
- https://git.kernel.org/stable/c/e1e10a390fd9479209c4d834d916ca5e6d5d396bPatch
- https://git.kernel.org/stable/c/eecb4df8ec9f896b19ee05bfa632ac6c1dcd8f21Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.