FKIE_CVE-2025-38009

Vulnerability from fkie_nvd - Published: 2025-06-18 10:15 - Updated: 2025-12-17 19:55
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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: <TASK> 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).
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2b81e76db3667d1f7f2ad44e9835cdaf8dea95a8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e700b06b970fc19e3a1ecb244e14785f3fbb8e3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/78ab4be549533432d97ea8989d2f00b508fa68d8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b892e830d1ea8c5475254b98827771f7366f1039Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ca5b213bf4b4224335a8131a26805d16503fca5fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e7bfbda5fddd27f3158e723d641c0fcdfb0552a7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff0f820fa5b99035b3c654dd531226d8d83aec5fPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/08/msg00010.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.15
linux linux_kernel 6.15
linux linux_kernel 6.15
linux linux_kernel 6.15
linux linux_kernel 6.15
linux linux_kernel 6.15
debian debian_linux 11.0
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: disable napi on driver removal\n\nA warning on driver removal started occurring after commit 9dd05df8403b\n(\"net: warn if NAPI instance wasn\u0027t shut down\"). Disable tx napi before\ndeleting it in mt76_dma_cleanup().\n\n WARNING: CPU: 4 PID: 18828 at net/core/dev.c:7288 __netif_napi_del_locked+0xf0/0x100\n CPU: 4 UID: 0 PID: 18828 Comm: modprobe Not tainted 6.15.0-rc4 #4 PREEMPT(lazy)\n Hardware name: ASUS System Product Name/PRIME X670E-PRO WIFI, BIOS 3035 09/05/2024\n RIP: 0010:__netif_napi_del_locked+0xf0/0x100\n Call Trace:\n \u003cTASK\u003e\n mt76_dma_cleanup+0x54/0x2f0 [mt76]\n mt7921_pci_remove+0xd5/0x190 [mt7921e]\n pci_device_remove+0x47/0xc0\n device_release_driver_internal+0x19e/0x200\n driver_detach+0x48/0x90\n bus_remove_driver+0x6d/0xf0\n pci_unregister_driver+0x2e/0xb0\n __do_sys_delete_module.isra.0+0x197/0x2e0\n do_syscall_64+0x7b/0x160\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nTested with mt7921e but the same pattern can be actually applied to other\nmt76 drivers calling mt76_dma_cleanup() during removal. Tx napi is enabled\nin their *_dma_init() functions and only toggled off and on again inside\ntheir suspend/resume/reset paths. So it should be okay to disable tx\nnapi in such a generic way.\n\nFound by Linux Verification Center (linuxtesting.org)."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mt76: deshabilitar NAPI al eliminar el controlador. Una advertencia al eliminar el controlador comenz\u00f3 a aparecer despu\u00e9s de el commit 9dd05df8403b (\"net: advertir si la instancia de NAPI no se apag\u00f3\"). Desactive la transacci\u00f3n NAPI antes de eliminarla en mt76_dma_cleanup(). ADVERTENCIA: CPU: 4 PID: 18828 en net/core/dev.c:7288 __netif_napi_del_locked+0xf0/0x100 CPU: 4 UID: 0 PID: 18828 Comm: modprobe No contaminado 6.15.0-rc4 #4 PREEMPT(lazy) Nombre del hardware: Nombre del producto del sistema ASUS/PRIME X670E-PRO WIFI, BIOS 3035 09/05/2024 RIP: 0010:__netif_napi_del_locked+0xf0/0x100 Rastreo de llamadas:  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 Se prob\u00f3 con mt7921e, pero el mismo patr\u00f3n se puede aplicar a otros controladores mt76 que invoquen mt76_dma_cleanup() durante la eliminaci\u00f3n. Tx napi est\u00e1 habilitado en sus funciones *_dma_init() y solo se activa y desactiva dentro de sus rutas de suspensi\u00f3n/reinicio/reinicio. Por lo tanto, deber\u00eda ser aceptable deshabilitar tx napi de forma gen\u00e9rica. Encontrado por el Centro de Verificaci\u00f3n de Linux (linuxtesting.org)."
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  "id": "CVE-2025-38009",
  "lastModified": "2025-12-17T19:55:20.383",
  "metrics": {
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2025-06-18T10:15:32.160",
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      "source": "nvd@nist.gov",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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