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vuln-cve/data/2026/43xxx/CVE-2026-43479.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-43479",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-05-01T14:12:56.012Z",
"datePublished": "2026-05-13T15:08:27.932Z",
"dateUpdated": "2026-05-13T15:08:27.932Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-13T15:08:27.932Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect\n\nRemove redundant netif_napi_del() call from disconnect path.\n\nA WARN may be triggered in __netif_napi_del_locked() during USB device\ndisconnect:\n\n WARNING: CPU: 0 PID: 11 at net/core/dev.c:7417 __netif_napi_del_locked+0x2b4/0x350\n\nThis happens because netif_napi_del() is called in the disconnect path while\nNAPI is still enabled. However, it is not necessary to call netif_napi_del()\nexplicitly, since unregister_netdev() will handle NAPI teardown automatically\nand safely. Removing the redundant call avoids triggering the warning.\n\nFull trace:\n lan78xx 1-1:1.0 enu1: Failed to read register index 0x000000c4. ret = -ENODEV\n lan78xx 1-1:1.0 enu1: Failed to set MAC down with error -ENODEV\n lan78xx 1-1:1.0 enu1: Link is Down\n lan78xx 1-1:1.0 enu1: Failed to read register index 0x00000120. ret = -ENODEV\n ------------[ cut here ]------------\n WARNING: CPU: 0 PID: 11 at net/core/dev.c:7417 __netif_napi_del_locked+0x2b4/0x350\n Modules linked in: flexcan can_dev fuse\n CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.16.0-rc2-00624-ge926949dab03 #9 PREEMPT\n Hardware name: SKOV IMX8MP CPU revC - bd500 (DT)\n Workqueue: usb_hub_wq hub_event\n pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : __netif_napi_del_locked+0x2b4/0x350\n lr : __netif_napi_del_locked+0x7c/0x350\n sp : ffffffc085b673c0\n x29: ffffffc085b673c0 x28: ffffff800b7f2000 x27: ffffff800b7f20d8\n x26: ffffff80110bcf58 x25: ffffff80110bd978 x24: 1ffffff0022179eb\n x23: ffffff80110bc000 x22: ffffff800b7f5000 x21: ffffff80110bc000\n x20: ffffff80110bcf38 x19: ffffff80110bcf28 x18: dfffffc000000000\n x17: ffffffc081578940 x16: ffffffc08284cee0 x15: 0000000000000028\n x14: 0000000000000006 x13: 0000000000040000 x12: ffffffb0022179e8\n x11: 1ffffff0022179e7 x10: ffffffb0022179e7 x9 : dfffffc000000000\n x8 : 0000004ffdde8619 x7 : ffffff80110bcf3f x6 : 0000000000000001\n x5 : ffffff80110bcf38 x4 : ffffff80110bcf38 x3 : 0000000000000000\n x2 : 0000000000000000 x1 : 1ffffff0022179e7 x0 : 0000000000000000\n Call trace:\n __netif_napi_del_locked+0x2b4/0x350 (P)\n lan78xx_disconnect+0xf4/0x360\n usb_unbind_interface+0x158/0x718\n device_remove+0x100/0x150\n device_release_driver_internal+0x308/0x478\n device_release_driver+0x1c/0x30\n bus_remove_device+0x1a8/0x368\n device_del+0x2e0/0x7b0\n usb_disable_device+0x244/0x540\n usb_disconnect+0x220/0x758\n hub_event+0x105c/0x35e0\n process_one_work+0x760/0x17b0\n worker_thread+0x768/0xce8\n kthread+0x3bc/0x690\n ret_from_fork+0x10/0x20\n irq event stamp: 211604\n hardirqs last enabled at (211603): [<ffffffc0828cc9ec>] _raw_spin_unlock_irqrestore+0x84/0x98\n hardirqs last disabled at (211604): [<ffffffc0828a9a84>] el1_dbg+0x24/0x80\n softirqs last enabled at (211296): [<ffffffc080095f10>] handle_softirqs+0x820/0xbc8\n softirqs last disabled at (210993): [<ffffffc080010288>] __do_softirq+0x18/0x20\n ---[ end trace 0000000000000000 ]---\n lan78xx 1-1:1.0 enu1: failed to kill vid 0081/0"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/usb/lan78xx.c"
],
"versions": [
{
"version": "e110bc82589752909e283ba5cbc160e0ab56c085",
"lessThan": "20ce2bd1c1848414c5d3520d301ed3f5751ed634",
"status": "affected",
"versionType": "git"
},
{
"version": "e110bc82589752909e283ba5cbc160e0ab56c085",
"lessThan": "395a8b903738511f536c97c427e15ef038e1a11c",
"status": "affected",
"versionType": "git"
},
{
"version": "e110bc82589752909e283ba5cbc160e0ab56c085",
"lessThan": "312c816c6bc30342bc30dca0d6db617ab4d3ae4e",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/usb/lan78xx.c"
],
"versions": [
{
"version": "6.17",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.17",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.19",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.19.9",
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.17",
"versionEndExcluding": "6.18.19"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.17",
"versionEndExcluding": "6.19.9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.17",
"versionEndExcluding": "7.0"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/20ce2bd1c1848414c5d3520d301ed3f5751ed634"
},
{
"url": "https://git.kernel.org/stable/c/395a8b903738511f536c97c427e15ef038e1a11c"
},
{
"url": "https://git.kernel.org/stable/c/312c816c6bc30342bc30dca0d6db617ab4d3ae4e"
}
],
"title": "net: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}