CVE-2025-38149 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
OSV3.2
EPSS
0.1%
top 80.10%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 3
Latest updateMar 25
Description
In the Linux kernel, the following vulnerability has been resolved:
net: phy: clear phydev->devlink when the link is deleted
There is a potential crash issue when disabling and re-enabling the
network port. When disabling the network port, phy_detach() calls
device_link_del() to remove the device link, but it does not clear
phydev->devlink, so phydev->devlink is not a NULL pointer. Then the
network port is re-enabled, but if phy_attach_direct() fails before
calling device_link_add(), the code …
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6