FKIE_CVE-2021-47589
Vulnerability from fkie_nvd - Published: 2024-06-19 15:15 - Updated: 2026-06-17 04:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
igbvf: fix double free in `igbvf_probe`
In `igbvf_probe`, if register_netdev() fails, the program will go to
label err_hw_init, and then to label err_ioremap. In free_netdev() which
is just below label err_ioremap, there is `list_for_each_entry_safe` and
`netif_napi_del` which aims to delete all entries in `dev->napi_list`.
The program has added an entry `adapter->rx_ring->napi` which is added by
`netif_napi_add` in igbvf_alloc_queues(). However, adapter->rx_ring has
been freed below label err_hw_init. So this a UAF.
In terms of how to patch the problem, we can refer to igbvf_remove() and
delete the entry before `adapter->rx_ring`.
The KASAN logs are as follows:
[ 35.126075] BUG: KASAN: use-after-free in free_netdev+0x1fd/0x450
[ 35.127170] Read of size 8 at addr ffff88810126d990 by task modprobe/366
[ 35.128360]
[ 35.128643] CPU: 1 PID: 366 Comm: modprobe Not tainted 5.15.0-rc2+ #14
[ 35.129789] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[ 35.131749] Call Trace:
[ 35.132199] dump_stack_lvl+0x59/0x7b
[ 35.132865] print_address_description+0x7c/0x3b0
[ 35.133707] ? free_netdev+0x1fd/0x450
[ 35.134378] __kasan_report+0x160/0x1c0
[ 35.135063] ? free_netdev+0x1fd/0x450
[ 35.135738] kasan_report+0x4b/0x70
[ 35.136367] free_netdev+0x1fd/0x450
[ 35.137006] igbvf_probe+0x121d/0x1a10 [igbvf]
[ 35.137808] ? igbvf_vlan_rx_add_vid+0x100/0x100 [igbvf]
[ 35.138751] local_pci_probe+0x13c/0x1f0
[ 35.139461] pci_device_probe+0x37e/0x6c0
[ 35.165526]
[ 35.165806] Allocated by task 366:
[ 35.166414] ____kasan_kmalloc+0xc4/0xf0
[ 35.167117] foo_kmem_cache_alloc_trace+0x3c/0x50 [igbvf]
[ 35.168078] igbvf_probe+0x9c5/0x1a10 [igbvf]
[ 35.168866] local_pci_probe+0x13c/0x1f0
[ 35.169565] pci_device_probe+0x37e/0x6c0
[ 35.179713]
[ 35.179993] Freed by task 366:
[ 35.180539] kasan_set_track+0x4c/0x80
[ 35.181211] kasan_set_free_info+0x1f/0x40
[ 35.181942] ____kasan_slab_free+0x103/0x140
[ 35.182703] kfree+0xe3/0x250
[ 35.183239] igbvf_probe+0x1173/0x1a10 [igbvf]
[ 35.184040] local_pci_probe+0x13c/0x1f0
References
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 | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/intel/igbvf/netdev.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "d4e0fe01a38a073568aee541a0247fe734095979",
"versionType": "git"
},
{
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"status": "affected",
"version": "d4e0fe01a38a073568aee541a0247fe734095979",
"versionType": "git"
},
{
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"status": "affected",
"version": "d4e0fe01a38a073568aee541a0247fe734095979",
"versionType": "git"
},
{
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"status": "affected",
"version": "d4e0fe01a38a073568aee541a0247fe734095979",
"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
"version": "d4e0fe01a38a073568aee541a0247fe734095979",
"versionType": "git"
},
{
"lessThan": "944b8be08131f5faf2cd2440aa1c24a39a163a54",
"status": "affected",
"version": "d4e0fe01a38a073568aee541a0247fe734095979",
"versionType": "git"
},
{
"lessThan": "b6d335a60dc624c0d279333b22c737faa765b028",
"status": "affected",
"version": "d4e0fe01a38a073568aee541a0247fe734095979",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/intel/igbvf/netdev.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.30"
},
{
"lessThan": "2.6.30",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.4.*",
"status": "unaffected",
"version": "4.4.296",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.294",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.259",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.222",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.168",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.88",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BCDBDCBF-3E2B-4AF7-952D-EB56D077EBF5",
"versionEndExcluding": "4.4.296",
"versionStartIncluding": "2.6.30",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BEC14782-2EE3-4635-A927-91559E4F451C",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "390D64FF-1DB7-4DD1-ADEF-CE96BEA2607C",
"versionEndExcluding": "4.14.259",
"versionStartIncluding": "4.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2D0D89BC-6CF8-4BFB-8C91-472348052528",
"versionEndExcluding": "4.19.222",
"versionStartIncluding": "4.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "195EBAA1-4CCE-4898-9351-F4A0DBCAA022",
"versionEndExcluding": "5.4.168",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A657B2D0-5B9D-42BE-A3BF-228DBC1B057C",
"versionEndExcluding": "5.10.88",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "11274E95-438A-449A-B100-01B2B0046669",
"versionEndExcluding": "5.15.11",
"versionStartIncluding": "5.11",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nigbvf: fix double free in `igbvf_probe`\n\nIn `igbvf_probe`, if register_netdev() fails, the program will go to\nlabel err_hw_init, and then to label err_ioremap. In free_netdev() which\nis just below label err_ioremap, there is `list_for_each_entry_safe` and\n`netif_napi_del` which aims to delete all entries in `dev-\u003enapi_list`.\nThe program has added an entry `adapter-\u003erx_ring-\u003enapi` which is added by\n`netif_napi_add` in igbvf_alloc_queues(). However, adapter-\u003erx_ring has\nbeen freed below label err_hw_init. So this a UAF.\n\nIn terms of how to patch the problem, we can refer to igbvf_remove() and\ndelete the entry before `adapter-\u003erx_ring`.\n\nThe KASAN logs are as follows:\n\n[ 35.126075] BUG: KASAN: use-after-free in free_netdev+0x1fd/0x450\n[ 35.127170] Read of size 8 at addr ffff88810126d990 by task modprobe/366\n[ 35.128360]\n[ 35.128643] CPU: 1 PID: 366 Comm: modprobe Not tainted 5.15.0-rc2+ #14\n[ 35.129789] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014\n[ 35.131749] Call Trace:\n[ 35.132199] dump_stack_lvl+0x59/0x7b\n[ 35.132865] print_address_description+0x7c/0x3b0\n[ 35.133707] ? free_netdev+0x1fd/0x450\n[ 35.134378] __kasan_report+0x160/0x1c0\n[ 35.135063] ? free_netdev+0x1fd/0x450\n[ 35.135738] kasan_report+0x4b/0x70\n[ 35.136367] free_netdev+0x1fd/0x450\n[ 35.137006] igbvf_probe+0x121d/0x1a10 [igbvf]\n[ 35.137808] ? igbvf_vlan_rx_add_vid+0x100/0x100 [igbvf]\n[ 35.138751] local_pci_probe+0x13c/0x1f0\n[ 35.139461] pci_device_probe+0x37e/0x6c0\n[ 35.165526]\n[ 35.165806] Allocated by task 366:\n[ 35.166414] ____kasan_kmalloc+0xc4/0xf0\n[ 35.167117] foo_kmem_cache_alloc_trace+0x3c/0x50 [igbvf]\n[ 35.168078] igbvf_probe+0x9c5/0x1a10 [igbvf]\n[ 35.168866] local_pci_probe+0x13c/0x1f0\n[ 35.169565] pci_device_probe+0x37e/0x6c0\n[ 35.179713]\n[ 35.179993] Freed by task 366:\n[ 35.180539] kasan_set_track+0x4c/0x80\n[ 35.181211] kasan_set_free_info+0x1f/0x40\n[ 35.181942] ____kasan_slab_free+0x103/0x140\n[ 35.182703] kfree+0xe3/0x250\n[ 35.183239] igbvf_probe+0x1173/0x1a10 [igbvf]\n[ 35.184040] local_pci_probe+0x13c/0x1f0"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: igbvf: corrige double free en `igbvf_probe` En `igbvf_probe`, si Register_netdev() falla, el programa ir\u00e1 a la etiqueta err_hw_init y luego a la etiqueta err_ioremap. En free_netdev(), que est\u00e1 justo debajo de la etiqueta err_ioremap, est\u00e1n `list_for_each_entry_safe` y `netif_napi_del` que tienen como objetivo eliminar todas las entradas en `dev-\u0026gt;napi_list`. El programa ha agregado una entrada `adapter-\u0026gt;rx_ring-\u0026gt;napi` que se agrega mediante `netif_napi_add` en igbvf_alloc_queues(). Sin embargo, adaptador-\u0026gt;rx_ring se ha liberado debajo de la etiqueta err_hw_init. Entonces esto es una UAF. En t\u00e9rminos de c\u00f3mo solucionar el problema, podemos consultar igbvf_remove() y eliminar la entrada antes de `adapter-\u0026gt;rx_ring`. Los registros de KASAN son los siguientes: [35.126075] ERROR: KASAN: use-after-free en free_netdev+0x1fd/0x450 [35.127170] Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff88810126d990 mediante la tarea modprobe/366 [35.128360] [35.128643] CPU: 1 PID : 366 Comm: modprobe Not tainted 5.15.0-rc2+ #14 [ 35.129789] Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01 /2014 [35.131749] Seguimiento de llamadas: [35.132199] dump_stack_lvl+0x59/0x7b [35.132865] print_address_description+0x7c/0x3b0 [35.133707] ? free_netdev+0x1fd/0x450 [ 35.134378] __kasan_report+0x160/0x1c0 [ 35.135063] ? free_netdev+0x1fd/0x450 [ 35.135738] kasan_report+0x4b/0x70 [ 35.136367] free_netdev+0x1fd/0x450 [ 35.137006] igbvf_probe+0x121d/0x1a10 [igbvf] [ 35.137808 ] ? igbvf_vlan_rx_add_vid+0x100/0x100 [igbvf] [ 35.138751] local_pci_probe+0x13c/0x1f0 [ 35.139461] pci_device_probe+0x37e/0x6c0 [ 35.165526] [ 35.165806] por tarea 366: [35.166414] ____kasan_kmalloc+0xc4/0xf0 [35.167117] foo_kmem_cache_alloc_trace+0x3c/ 0x50 [igbvf] [ 35.168078] igbvf_probe+0x9c5/0x1a10 [igbvf] [ 35.168866] local_pci_probe+0x13c/0x1f0 [ 35.169565] pci_device_probe+0x37e/0x6c0 [ 35.179713 ] [35.179993] Liberado por la tarea 366: [35.180539] kasan_set_track+0x4c/0x80 [ 35.181211] kasan_set_free_info+0x1f/0x40 [ 35.181942] ____kasan_slab_free+0x103/0x140 [ 35.182703] kfree+0xe3/0x250 [ 35.183239] igbvf_probe+0x1173/0x1a10 vf] [35.184040] local_pci_probe+0x13c/0x1f0"
}
],
"id": "CVE-2021-47589",
"lastModified": "2026-06-17T04:17:49.590",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-47589",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-20T17:58:29.700241Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-06-19T15:15:53.490",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
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"tags": [
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{
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
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"url": "https://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-415"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.