{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47589", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-24T15:11:00.732Z", "datePublished": "2024-06-19T14:53:53.565Z", "dateUpdated": "2026-05-11T13:57:27.931Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:57:27.931Z"}, "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->napi_list`.\nThe program has added an entry `adapter->rx_ring->napi` which is added by\n`netif_napi_add` in igbvf_alloc_queues(). However, adapter->rx_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->rx_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"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/intel/igbvf/netdev.c"], "versions": [{"version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "ffe1695b678729edec04037e691007900a2b2beb", "status": "affected", "versionType": "git"}, {"version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "79d9b092035dcdbe636b70433149df9cc6db1e49", "status": "affected", "versionType": "git"}, {"version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "8d0c927a9fb2b4065230936b77b54f857a3754fc", "status": "affected", "versionType": "git"}, {"version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "cc9b655bb84f1be283293dfea94dff9a31b106ac", "status": "affected", "versionType": "git"}, {"version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "8addba6cab94ce01686ea2e80ed1530f9dc33a9a", "status": "affected", "versionType": "git"}, {"version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "74a16e062b23332d8db017ff4a41e16279c44411", "status": "affected", "versionType": "git"}, {"version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "944b8be08131f5faf2cd2440aa1c24a39a163a54", "status": "affected", "versionType": "git"}, {"version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "b6d335a60dc624c0d279333b22c737faa765b028", "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/ethernet/intel/igbvf/netdev.c"], "versions": [{"version": "2.6.30", "status": "affected"}, {"version": "0", "lessThan": "2.6.30", "status": "unaffected", "versionType": "semver"}, {"version": "4.4.296", "lessThanOrEqual": "4.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.9.294", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.259", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.222", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.168", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.88", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.11", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16", "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": "2.6.30", "versionEndExcluding": "4.4.296"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "4.9.294"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "4.14.259"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "4.19.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.4.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.10.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.15.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb"}, {"url": "https://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49"}, {"url": "https://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc"}, {"url": "https://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac"}, {"url": "https://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a"}, {"url": "https://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411"}, {"url": "https://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54"}, {"url": "https://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028"}], "title": "igbvf: fix double free in `igbvf_probe`", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-06-20T17:58:29.700241Z", "id": "CVE-2021-47589", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-20T17:58:40.103Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.864Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.864Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47589", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-06-20T17:58:29.700241Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-20T17:58:36.108Z"}}], "cna": {"title": "igbvf: fix double free in `igbvf_probe`", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "ffe1695b678729edec04037e691007900a2b2beb", "versionType": "git"}, {"status": "affected", "version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "79d9b092035dcdbe636b70433149df9cc6db1e49", "versionType": "git"}, {"status": "affected", "version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "8d0c927a9fb2b4065230936b77b54f857a3754fc", "versionType": "git"}, {"status": "affected", "version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "cc9b655bb84f1be283293dfea94dff9a31b106ac", "versionType": "git"}, {"status": "affected", "version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "8addba6cab94ce01686ea2e80ed1530f9dc33a9a", "versionType": "git"}, {"status": "affected", "version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "74a16e062b23332d8db017ff4a41e16279c44411", "versionType": "git"}, {"status": "affected", "version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "944b8be08131f5faf2cd2440aa1c24a39a163a54", "versionType": "git"}, {"status": "affected", "version": "d4e0fe01a38a073568aee541a0247fe734095979", "lessThan": "b6d335a60dc624c0d279333b22c737faa765b028", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/intel/igbvf/netdev.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.30"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.30", "versionType": "semver"}, {"status": "unaffected", "version": "4.4.296", "versionType": "semver", "lessThanOrEqual": "4.4.*"}, {"status": "unaffected", "version": "4.9.294", "versionType": "semver", "lessThanOrEqual": "4.9.*"}, {"status": "unaffected", "version": "4.14.259", "versionType": "semver", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.222", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.168", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.88", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.11", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/intel/igbvf/netdev.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb"}, {"url": "https://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49"}, {"url": "https://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc"}, {"url": "https://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac"}, {"url": "https://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a"}, {"url": "https://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411"}, {"url": "https://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54"}, {"url": "https://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028"}], "x_generator": {"engine": "bippy-1.2.0"}, "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->napi_list`.\nThe program has added an entry `adapter->rx_ring->napi` which is added by\n`netif_napi_add` in igbvf_alloc_queues(). However, adapter->rx_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->rx_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"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.4.296", "versionStartIncluding": "2.6.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.9.294", "versionStartIncluding": "2.6.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.14.259", "versionStartIncluding": "2.6.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.19.222", "versionStartIncluding": "2.6.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.168", "versionStartIncluding": "2.6.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.88", "versionStartIncluding": "2.6.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.11", "versionStartIncluding": "2.6.30"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16", "versionStartIncluding": "2.6.30"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:14:15.834Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47589", "state": "PUBLISHED", "dateUpdated": "2025-05-04T07:14:15.834Z", "dateReserved": "2024-05-24T15:11:00.732Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-06-19T14:53:53.565Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"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", "versionEndExcluding": "4.9.294", "versionStartIncluding": "4.5", "vulnerable": true}, {"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"}]}], "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->napi_list`.\nThe program has added an entry `adapter->rx_ring->napi` which is added by\n`netif_napi_add` in igbvf_alloc_queues(). However, adapter->rx_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->rx_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->napi_list`. El programa ha agregado una entrada `adapter->rx_ring->napi` que se agrega mediante `netif_napi_add` en igbvf_alloc_queues(). Sin embargo, adaptador->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->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": "2024-11-21T06:36:36.933", "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"}]}, "published": "2024-06-19T15:15:53.490", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b6d335a60dc624c0d279333b22c737faa765b028"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cc9b655bb84f1be283293dfea94dff9a31b106ac"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ffe1695b678729edec04037e691007900a2b2beb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/74a16e062b23332d8db017ff4a41e16279c44411"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/79d9b092035dcdbe636b70433149df9cc6db1e49"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8addba6cab94ce01686ea2e80ed1530f9dc33a9a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8d0c927a9fb2b4065230936b77b54f857a3754fc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/944b8be08131f5faf2cd2440aa1c24a39a163a54"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "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"}]}

{"bugzilla": {"description": "kernel: igbvf: fix double free in `igbvf_probe`", "id": "2293239", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293239"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-415", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nigbvf: fix double free in `igbvf_probe`\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->napi_list`.\nThe program has added an entry `adapter->rx_ring->napi` which is added by\n`netif_napi_add` in igbvf_alloc_queues(). However, adapter->rx_ring has\nbeen freed below label err_hw_init. So this a UAF.\nIn terms of how to patch the problem, we can refer to igbvf_remove() and\ndelete the entry before `adapter->rx_ring`.\nThe KASAN logs are as follows:\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"], "name": "CVE-2021-47589", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-06-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47589\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47589\nhttps://lore.kernel.org/linux-cve-announce/2024061918-CVE-2021-47589-d405@gregkh/T"], "threat_severity": "Low"}

{}