cbcvebase.
CVE-2025-37989
published 2025-05-20

CVE-2025-37989: In the Linux kernel, the following vulnerability has been resolved: net: phy: leds: fix memory leak A network restart test on a router led to an out-of-memory…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.16%
5.8th percentile
In the Linux kernel, the following vulnerability has been resolved: net: phy: leds: fix memory leak A network restart test on a router led to an out-of-memory condition, which was traced to a memory leak in the PHY LED trigger code. The root cause is misuse of the devm API. The registration function (phy_led_triggers_register) is called from phy_attach_direct, not phy_probe, and the unregister function (phy_led_triggers_unregister) is called from phy_detach, not phy_remove. This means the register and unregister functions can be called multiple times for the same PHY device, but devm-allocated memory is not freed until the driver is unbound. This also prevents kmemleak from detecting the leak, as the devm API internally stores the allocated pointer. Fix this by replacing devm_kzalloc/devm_kcalloc with standard kzalloc/kcalloc, and add the corresponding kfree calls in the unregister path.

Affected

38 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.137-1 (bookworm)linux 6.1.137-1 (bookworm)
debianlinux-6.1< linux 6.1.137-1 (bookworm)linux 6.1.137-1 (bookworm)
linuxlinux
linuxlinux>= 2e0bc452f4721520502575362a9cd3c1248d2337 < 966d6494e2ed9be9052fcd9815afba830896aaf8966d6494e2ed9be9052fcd9815afba830896aaf8
linuxlinux>= 2e0bc452f4721520502575362a9cd3c1248d2337 < 95bed65cc0eb2a610550abf849a8b94374da80a795bed65cc0eb2a610550abf849a8b94374da80a7
linuxlinux>= 2e0bc452f4721520502575362a9cd3c1248d2337 < 663c3da86e807c6c07ed48f911c7526fad6fe1ff663c3da86e807c6c07ed48f911c7526fad6fe1ff
linuxlinux>= 2e0bc452f4721520502575362a9cd3c1248d2337 < f41f097f68a33d392579885426d0734a81219501f41f097f68a33d392579885426d0734a81219501
linuxlinux>= 2e0bc452f4721520502575362a9cd3c1248d2337 < 618541a6cc1511064dfa58c89b3445e21844092f618541a6cc1511064dfa58c89b3445e21844092f
linuxlinux>= 2e0bc452f4721520502575362a9cd3c1248d2337 < 41143e71052a00d654c15dc924fda50c1e7357d041143e71052a00d654c15dc924fda50c1e7357d0
linuxlinux>= 2e0bc452f4721520502575362a9cd3c1248d2337 < 7f3d5880800f962c347777c4f8358f29f5fc403c7f3d5880800f962c347777c4f8358f29f5fc403c
linuxlinux>= 2e0bc452f4721520502575362a9cd3c1248d2337 < b7f0ee992adf601aa00c252418266177eb7ac2bcb7f0ee992adf601aa00c252418266177eb7ac2bc
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.237-15.10.237-1
linuxlinux_kernel>= 0 < 6.1.137-16.1.137-1
linuxlinux_kernel>= 0 < 6.12.27-16.12.27-1
linuxlinux_kernel>= 0 < 6.12.27-16.12.27-1
linuxlinux_kernel>= 0 < 5.15.0-144.1575.15.0-144.157
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 0 < 6.14.0-22.226.14.0-22.22
linuxlinux_kernel>= 4.10 < 5.4.2935.4.293
linuxlinux_kernel>= 5.11 < 5.15.1815.15.181
linuxlinux_kernel>= 5.16 < 6.1.1366.1.136
linuxlinux_kernel>= 5.5 < 5.10.2375.10.237
linuxlinux_kernel>= 6.13 < 6.14.56.14.5

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.