🛡️ CVE-2025-38385 — debian-linux

🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-404 NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

net: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect

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 : ffffff80110bcf38 x3 : 0000000000000000

x2 : 0000000000000000 x1 : 1ffffff0022179e7 x0 : 0000000000000000

Call trace:

__netif_napi_del_locked+0x2b4/0x350 (P)

lan78xx_disconnect+0xf4/0x360

usb_unbind_interface+0x158/0x718

device_remove+0x100/0x150

device_release_driver_internal+0x308/0x478

device_release_driver+0x1c/0x30

bus_remove_device+0x1a8/0x368

device_del+0x2e0/0x7b0

usb_disable_device+0x244/0x540

usb_disconnect+0x220/0x758

hub_event+0x105c/0x35e0

process_one_work+0x760/0x17b0

worker_thread+0x768/0xce8

kthread+0x3bc/0x690

ret_from_fork+0x10/0x20

irq event stamp: 211604

hardirqs last enabled at (211603): [<ffffffc0828cc9ec>] _raw_spin_unlock_irqrestore+0x84/0x98

hardirqs last disabled at (211604): [<ffffffc0828a9a84>] el1_dbg+0x24/0x80

softirqs last enabled at (211296): [<ffffffc080095f10>] handle_softirqs+0x820/0xbc8

softirqs last disabled at (210993): [<ffffffc080010288>] __do_softirq+0x18/0x20

---[ end trace 0000000000000000 ]---

lan78xx 1-1:1.0 enu1: failed to kill vid 0081/0

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-38385 is classified as CWE-404: Improper Resource Shutdown or Release. A resource is not released correctly after use, leaving it locked, leaked or in an inconsistent state.

Affected software

CVE-2025-38385 is recorded against 3 packages.

  • debian-linux
  • kernel (from 6.13.0 up to 6.15.6)
  • linux-kernel

Timeline and source

Published on 25 July 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
lists.debian.org

CVE-2025-38385 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-404
Public Exploit ✅ No
Source NVD
Published 2025-07-25
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
debian-linux — —
kernel 6.13.0 6.15.6
linux-kernel — —

Similar Threats

Site Security Check

Is debian-linux part of your stack?

CVE-2025-38385 is rated CVSS 7.8 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.