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CVE-2025-38009
published 2025-06-18

CVE-2025-38009: In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: disable napi on driver removal A warning on driver removal started occurring…

medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: disable napi on driver removal A warning on driver removal started occurring after commit 9dd05df8403b ("net: warn if NAPI instance wasn't shut down"). Disable tx napi before deleting it in mt76_dma_cleanup(). WARNING: CPU: 4 PID: 18828 at net/core/dev.c:7288 __netif_napi_del_locked+0xf0/0x100 CPU: 4 UID: 0 PID: 18828 Comm: modprobe Not tainted 6.15.0-rc4 #4 PREEMPT(lazy) Hardware name: ASUS System Product Name/PRIME X670E-PRO WIFI, BIOS 3035 09/05/2024 RIP: 0010:__netif_napi_del_locked+0xf0/0x100 Call Trace: mt76_dma_cleanup+0x54/0x2f0 [mt76] mt7921_pci_remove+0xd5/0x190 [mt7921e] pci_device_remove+0x47/0xc0 device_release_driver_internal+0x19e/0x200 driver_detach+0x48/0x90 bus_remove_driver+0x6d/0xf0 pci_unregister_driver+0x2e/0xb0 __do_sys_delete_module.isra.0+0x197/0x2e0 do_syscall_64+0x7b/0x160 entry_SYSCALL_64_after_hwframe+0x76/0x7e Tested with mt7921e but the same pattern can be actually applied to other mt76 drivers calling mt76_dma_cleanup() during removal. Tx napi is enabled in their *_dma_init() functions and only toggled off and on again inside their suspend/resume/reset paths. So it should be okay to disable tx napi in such a generic way. Found by Linux Verification Center (linuxtesting.org).

Affected

33 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.140-1 (bookworm)linux 6.1.140-1 (bookworm)
debianlinux-6.1< linux 6.1.140-1 (bookworm)linux 6.1.140-1 (bookworm)
linuxlinux
linuxlinux>= 2ac515a5d74f26963362d5da9589c67ca3663338 < ff0f820fa5b99035b3c654dd531226d8d83aec5fff0f820fa5b99035b3c654dd531226d8d83aec5f
linuxlinux>= 2ac515a5d74f26963362d5da9589c67ca3663338 < ca5b213bf4b4224335a8131a26805d16503fca5fca5b213bf4b4224335a8131a26805d16503fca5f
linuxlinux>= 2ac515a5d74f26963362d5da9589c67ca3663338 < b892e830d1ea8c5475254b98827771f7366f1039b892e830d1ea8c5475254b98827771f7366f1039
linuxlinux>= 2ac515a5d74f26963362d5da9589c67ca3663338 < 5e700b06b970fc19e3a1ecb244e14785f3fbb8e35e700b06b970fc19e3a1ecb244e14785f3fbb8e3
linuxlinux>= 2ac515a5d74f26963362d5da9589c67ca3663338 < 2b81e76db3667d1f7f2ad44e9835cdaf8dea95a82b81e76db3667d1f7f2ad44e9835cdaf8dea95a8
linuxlinux>= 2ac515a5d74f26963362d5da9589c67ca3663338 < e7bfbda5fddd27f3158e723d641c0fcdfb0552a7e7bfbda5fddd27f3158e723d641c0fcdfb0552a7
linuxlinux>= 2ac515a5d74f26963362d5da9589c67ca3663338 < 78ab4be549533432d97ea8989d2f00b508fa68d878ab4be549533432d97ea8989d2f00b508fa68d8
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.244-15.10.244-1
linuxlinux_kernel>= 0 < 6.1.140-16.1.140-1
linuxlinux_kernel>= 0 < 6.12.30-16.12.30-1
linuxlinux_kernel>= 0 < 6.12.30-16.12.30-1
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>= 5.11 < 5.15.1845.15.184
linuxlinux_kernel>= 5.16 < 6.1.1406.1.140
linuxlinux_kernel>= 5.2 < 5.10.2385.10.238
linuxlinux_kernel>= 6.13 < 6.14.86.14.8
linuxlinux_kernel>= 6.2 < 6.6.926.6.92
linuxlinux_kernel>= 6.7 < 6.12.306.12.30
ubuntulinux-aws

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