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DEBIAN-CVE-2025-40107

DEBIAN-CVE-2025-40107 PUBLISHED CVSS 9.300000190734863 CRITICAL

In the Linux kernel, the following vulnerability has been resolved: can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled This issue is similar to the vulnerability in the `mcp251x` driver, which was fixed in commit 03c427147b2d ("can: mcp251x: fix resume from sleep before interface was brought up"). In the `hi311x` driver, when the device resumes from sleep, the driver schedules `priv->restart_work`. However, if the network interface was not previously enabled, the `priv->wq` (workqueue) is not allocated and initialized, leading to a null pointer dereference. To fix this, we move the allocation and initialization of the workqueue from the `hi3110_open` function to the `hi3110_can_probe` function. This ensures that the workqueue is properly initialized before it is used during device resume. And added logic to destroy the workqueue in the error handling paths of `hi3110_can_probe` and in the `hi3110_can_remove` function to prevent resource leaks.

Risk Scores

CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected Products

VendorProductVersions
Debian:13linux6.12.38-1, 0, 6.12.57-1
Debian:11linux6.11-1, 6.12.27-1, 6.12.29-1
Debian:14linux6.15.1-1~exp1, 6.15.2-1~exp1, 6.15.4-1~exp1
Debian:12linux6.1.69-1, 6.1.106-1, 6.1.106-2
Debian:11linux-6.16.1.153-1~deb11u1, *, *

Exploit Intelligence

Timeline

  • Nov 3, 2025 CVE Published
  • Apr 28, 2026 CVE Updated
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