CVE-2025-38385
published 2025-07-25CVE-2025-38385: In the Linux kernel, the following vulnerability has been resolved: net: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect Remove redundant…
high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
In the Linux kernel, the following vulnerability has been resolved:
net: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect
Remove redundant netif_napi_del() call from disconnect path.
A WARN may be triggered in __netif_napi_del_locked() during USB device
disconnect:
WARNING: CPU: 0 PID: 11 at net/core/dev.c:7417 __netif_napi_del_locked+0x2b4/0x350
This happens because netif_napi_del() is called in the disconnect path while
NAPI is still enabled. However, it is not necessary to call netif_napi_del()
explicitly, since unregister_netdev() will handle NAPI teardown automatically
and safely. Removing the redundant call avoids triggering the warning.
Full trace:
lan78xx 1-1:1.0 enu1: Failed to read register index 0x000000c4. ret = -ENODEV
lan78xx 1-1:1.0 enu1: Failed to set MAC down with error -ENODEV
lan78xx 1-1:1.0 enu1: Link is Down
lan78xx 1-1:1.0 enu1: Failed to read register index 0x00000120. ret = -ENODEV
------------[ cut here ]------------
WARNING: CPU: 0 PID: 11 at net/core/dev.c:7417 __netif_napi_del_locked+0x2b4/0x350
Modules linked in: flexcan can_dev fuse
CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.16.0-rc2-00624-ge926949dab03 #9 PREEMPT
Hardware name: SKOV IMX8MP CPU revC - bd500 (DT)
Workqueue: usb_hub_wq hub_event
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __netif_napi_del_locked+0x2b4/0x350
lr : __netif_napi_del_locked+0x7c/0x350
sp : ffffffc085b673c0
x29: ffffffc085b673c0 x28: ffffff800b7f2000 x27: ffffff800b7f20d8
x26: ffffff80110bcf58 x25: ffffff80110bd978 x24: 1ffffff0022179eb
x23: ffffff80110bc000 x22: ffffff800b7f5000 x21: ffffff80110bc000
x20: ffffff80110bcf38 x19: ffffff80110bcf28 x18: dfffffc000000000
x17: ffffffc081578940 x16: ffffffc08284cee0 x15: 0000000000000028
x14: 0000000000000006 x13: 0000000000040000 x12: ffffffb0022179e8
x11: 1ffffff0022179e7 x10: ffffffb0022179e7 x9 : dfffffc000000000
x8 : 0000004ffdde8619 x7 : ffffff80110bcf3f x6 : 0000000000000001
x5 : ffffff80110bcf38 x4 : fff
Affected
29 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.147-1 (bookworm) | linux 6.1.147-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.147-1 (bookworm) | linux 6.1.147-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= ec4c7e12396b1a30fbacfa68425118f5b46ea878 < 7135056a49035597198280820c61b8c5dbe4a1d0 | 7135056a49035597198280820c61b8c5dbe4a1d0 |
| linux | linux | >= ec4c7e12396b1a30fbacfa68425118f5b46ea878 < 968a419c95131e420f12bbdba19e96e2f6b071c4 | 968a419c95131e420f12bbdba19e96e2f6b071c4 |
| linux | linux | >= ec4c7e12396b1a30fbacfa68425118f5b46ea878 < 510a6095d754df9d727f644ec5076b7929d6c9ea | 510a6095d754df9d727f644ec5076b7929d6c9ea |
| linux | linux | >= ec4c7e12396b1a30fbacfa68425118f5b46ea878 < 17a37b9a5dd945d86110838fb471e7139ba993a2 | 17a37b9a5dd945d86110838fb471e7139ba993a2 |
| linux | linux | >= ec4c7e12396b1a30fbacfa68425118f5b46ea878 < 6c7ffc9af7186ed79403a3ffee9a1e5199fc7450 | 6c7ffc9af7186ed79403a3ffee9a1e5199fc7450 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.147-1 | 6.1.147-1 |
| linux | linux_kernel | >= 0 < 6.12.37-1 | 6.12.37-1 |
| linux | linux_kernel | >= 0 < 6.12.37-1 | 6.12.37-1 |
| linux | linux_kernel | >= 0 < 6.8.0-100.100 | 6.8.0-100.100 |
| linux | linux_kernel | >= 5.17 < 6.1.144 | 6.1.144 |
| linux | linux_kernel | >= 6.13 < 6.15.6 | 6.15.6 |
| linux | linux_kernel | >= 6.2 < 6.6.97 | 6.6.97 |
| linux | linux_kernel | >= 6.7 < 6.12.37 | 6.12.37 |
| msrc | azl3_kernel_6.6.96.2-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.96.2-2_on_azure_linux_3.0 | — | — |
| ubuntu | linux-aws | — | — |
| ubuntu | linux-aws-6.8 | — | — |
| ubuntu | linux-gkeop | — | — |
| ubuntu | linux-nvidia | — | — |
| ubuntu | linux-nvidia-6.8 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH