CVE-2021-47400 (GCVE-0-2021-47400)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2026-05-11 13:53
VLAI
Title
net: hns3: do not allow call hns3_nic_net_open repeatedly
Summary
In the Linux kernel, the following vulnerability has been resolved: net: hns3: do not allow call hns3_nic_net_open repeatedly hns3_nic_net_open() is not allowed to called repeatly, but there is no checking for this. When doing device reset and setup tc concurrently, there is a small oppotunity to call hns3_nic_net_open repeatedly, and cause kernel bug by calling napi_enable twice. The calltrace information is like below: [ 3078.222780] ------------[ cut here ]------------ [ 3078.230255] kernel BUG at net/core/dev.c:6991! [ 3078.236224] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 3078.243431] Modules linked in: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O) [ 3078.258880] CPU: 0 PID: 295 Comm: kworker/u8:5 Tainted: G O 5.14.0-rc4+ #1 [ 3078.269102] Hardware name: , BIOS KpxxxFPGA 1P B600 V181 08/12/2021 [ 3078.276801] Workqueue: hclge hclge_service_task [hclge] [ 3078.288774] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--) [ 3078.296168] pc : napi_enable+0x80/0x84 tc qdisc sho[w 3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3] [ 3078.314771] sp : ffff8000108abb20 [ 3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300 [ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 0000000000000000 [ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880 [ 3078.349018] x20: 0000000000000000 x19: ffff08209cd76900 x18: 0000000000000000 [ 3078.358620] x17: 0000000000000000 x16: ffffc816e1727a50 x15: 0000ffff8f4ff930 [ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4 [ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9 : ffffc816ad8885b8 [ 3078.387091] x8 : ffff08209cfc6fb8 x7 : ffff0820ac0da058 x6 : ffff0820a8490344 [ 3078.396356] x5 : 0000000000000140 x4 : 0000000000000003 x3 : ffff08209cd76938 [ 3078.405365] x2 : 0000000000000000 x1 : 0000000000000010 x0 : ffff0820abfe38a0 [ 3078.414657] Call trace: [ 3078.418517] napi_enable+0x80/0x84 [ 3078.424626] hns3_reset_notify_up_enet+0x78/0xd0 [hns3] [ 3078.433469] hns3_reset_notify+0x64/0x80 [hns3] [ 3078.441430] hclge_notify_client+0x68/0xb0 [hclge] [ 3078.450511] hclge_reset_rebuild+0x524/0x884 [hclge] [ 3078.458879] hclge_reset_service_task+0x3c4/0x680 [hclge] [ 3078.467470] hclge_service_task+0xb0/0xb54 [hclge] [ 3078.475675] process_one_work+0x1dc/0x48c [ 3078.481888] worker_thread+0x15c/0x464 [ 3078.487104] kthread+0x160/0x170 [ 3078.492479] ret_from_fork+0x10/0x18 [ 3078.498785] Code: c8027c81 35ffffa2 d50323bf d65f03c0 (d4210000) [ 3078.506889] ---[ end trace 8ebe0340a1b0fb44 ]--- Once hns3_nic_net_open() is excute success, the flag HNS3_NIC_STATE_DOWN will be cleared. So add checking for this flag, directly return when HNS3_NIC_STATE_DOWN is no set.
Severity
4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e888402789b9db5de4fcda361331d66dbf0cd9fd , < 5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d (git)
Affected: e888402789b9db5de4fcda361331d66dbf0cd9fd , < f8ba689cb69523144d10606096ef686002dd7285 (git)
Affected: e888402789b9db5de4fcda361331d66dbf0cd9fd , < 3dac38bdce7932901b9f0b71c62331852c809e61 (git)
Affected: e888402789b9db5de4fcda361331d66dbf0cd9fd , < 5b09e88e1bf7fe86540fab4b5f3eece8abead39e (git)
Create a notification for this product.
Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.4.151 , ≤ 5.4.* (semver)
Unaffected: 5.10.71 , ≤ 5.10.* (semver)
Unaffected: 5.14.10 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hns3: do not allow call hns3_nic_net_open repeatedly\n\nhns3_nic_net_open() is not allowed to called repeatly, but there\nis no checking for this. When doing device reset and setup tc\nconcurrently, there is a small oppotunity to call hns3_nic_net_open\nrepeatedly, and cause kernel bug by calling napi_enable twice.\n\nThe calltrace information is like below:\n[ 3078.222780] ------------[ cut here ]------------\n[ 3078.230255] kernel BUG at net/core/dev.c:6991!\n[ 3078.236224] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\n[ 3078.243431] Modules linked in: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O)\n[ 3078.258880] CPU: 0 PID: 295 Comm: kworker/u8:5 Tainted: G           O      5.14.0-rc4+ #1\n[ 3078.269102] Hardware name:  , BIOS KpxxxFPGA 1P B600 V181 08/12/2021\n[ 3078.276801] Workqueue: hclge hclge_service_task [hclge]\n[ 3078.288774] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--)\n[ 3078.296168] pc : napi_enable+0x80/0x84\ntc qdisc sho[w  3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3]\n\n[ 3078.314771] sp : ffff8000108abb20\n[ 3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300\n[ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 0000000000000000\n[ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880\n[ 3078.349018] x20: 0000000000000000 x19: ffff08209cd76900 x18: 0000000000000000\n[ 3078.358620] x17: 0000000000000000 x16: ffffc816e1727a50 x15: 0000ffff8f4ff930\n[ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4\n[ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9 : ffffc816ad8885b8\n[ 3078.387091] x8 : ffff08209cfc6fb8 x7 : ffff0820ac0da058 x6 : ffff0820a8490344\n[ 3078.396356] x5 : 0000000000000140 x4 : 0000000000000003 x3 : ffff08209cd76938\n[ 3078.405365] x2 : 0000000000000000 x1 : 0000000000000010 x0 : ffff0820abfe38a0\n[ 3078.414657] Call trace:\n[ 3078.418517]  napi_enable+0x80/0x84\n[ 3078.424626]  hns3_reset_notify_up_enet+0x78/0xd0 [hns3]\n[ 3078.433469]  hns3_reset_notify+0x64/0x80 [hns3]\n[ 3078.441430]  hclge_notify_client+0x68/0xb0 [hclge]\n[ 3078.450511]  hclge_reset_rebuild+0x524/0x884 [hclge]\n[ 3078.458879]  hclge_reset_service_task+0x3c4/0x680 [hclge]\n[ 3078.467470]  hclge_service_task+0xb0/0xb54 [hclge]\n[ 3078.475675]  process_one_work+0x1dc/0x48c\n[ 3078.481888]  worker_thread+0x15c/0x464\n[ 3078.487104]  kthread+0x160/0x170\n[ 3078.492479]  ret_from_fork+0x10/0x18\n[ 3078.498785] Code: c8027c81 35ffffa2 d50323bf d65f03c0 (d4210000)\n[ 3078.506889] ---[ end trace 8ebe0340a1b0fb44 ]---\n\nOnce hns3_nic_net_open() is excute success, the flag\nHNS3_NIC_STATE_DOWN will be cleared. So add checking for this\nflag, directly return when HNS3_NIC_STATE_DOWN is no set."
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    "cveId": "CVE-2021-47400",
    "datePublished": "2024-05-21T15:03:55.368Z",
    "dateReserved": "2024-05-21T14:58:30.816Z",
    "dateUpdated": "2026-05-11T13:53:57.479Z",
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    "epss": {
      "cve": "CVE-2021-47400",
      "date": "2026-05-27",
      "epss": "0.00015",
      "percentile": "0.03509"
    },
    "fkie_nvd": {
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: hns3: do not allow call hns3_nic_net_open repeatedly\\n\\nhns3_nic_net_open() is not allowed to called repeatly, but there\\nis no checking for this. When doing device reset and setup tc\\nconcurrently, there is a small oppotunity to call hns3_nic_net_open\\nrepeatedly, and cause kernel bug by calling napi_enable twice.\\n\\nThe calltrace information is like below:\\n[ 3078.222780] ------------[ cut here ]------------\\n[ 3078.230255] kernel BUG at net/core/dev.c:6991!\\n[ 3078.236224] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\\n[ 3078.243431] Modules linked in: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O)\\n[ 3078.258880] CPU: 0 PID: 295 Comm: kworker/u8:5 Tainted: G           O      5.14.0-rc4+ #1\\n[ 3078.269102] Hardware name:  , BIOS KpxxxFPGA 1P B600 V181 08/12/2021\\n[ 3078.276801] Workqueue: hclge hclge_service_task [hclge]\\n[ 3078.288774] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--)\\n[ 3078.296168] pc : napi_enable+0x80/0x84\\ntc qdisc sho[w  3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3]\\n\\n[ 3078.314771] sp : ffff8000108abb20\\n[ 3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300\\n[ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 0000000000000000\\n[ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880\\n[ 3078.349018] x20: 0000000000000000 x19: ffff08209cd76900 x18: 0000000000000000\\n[ 3078.358620] x17: 0000000000000000 x16: ffffc816e1727a50 x15: 0000ffff8f4ff930\\n[ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4\\n[ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9 : ffffc816ad8885b8\\n[ 3078.387091] x8 : ffff08209cfc6fb8 x7 : ffff0820ac0da058 x6 : ffff0820a8490344\\n[ 3078.396356] x5 : 0000000000000140 x4 : 0000000000000003 x3 : ffff08209cd76938\\n[ 3078.405365] x2 : 0000000000000000 x1 : 0000000000000010 x0 : ffff0820abfe38a0\\n[ 3078.414657] Call trace:\\n[ 3078.418517]  napi_enable+0x80/0x84\\n[ 3078.424626]  hns3_reset_notify_up_enet+0x78/0xd0 [hns3]\\n[ 3078.433469]  hns3_reset_notify+0x64/0x80 [hns3]\\n[ 3078.441430]  hclge_notify_client+0x68/0xb0 [hclge]\\n[ 3078.450511]  hclge_reset_rebuild+0x524/0x884 [hclge]\\n[ 3078.458879]  hclge_reset_service_task+0x3c4/0x680 [hclge]\\n[ 3078.467470]  hclge_service_task+0xb0/0xb54 [hclge]\\n[ 3078.475675]  process_one_work+0x1dc/0x48c\\n[ 3078.481888]  worker_thread+0x15c/0x464\\n[ 3078.487104]  kthread+0x160/0x170\\n[ 3078.492479]  ret_from_fork+0x10/0x18\\n[ 3078.498785] Code: c8027c81 35ffffa2 d50323bf d65f03c0 (d4210000)\\n[ 3078.506889] ---[ end trace 8ebe0340a1b0fb44 ]---\\n\\nOnce hns3_nic_net_open() is excute success, the flag\\nHNS3_NIC_STATE_DOWN will be cleared. So add checking for this\\nflag, directly return when HNS3_NIC_STATE_DOWN is no set.\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: hns3: no permitir llamadas repetidas a hns3_nic_net_open. No se permite llamar repetidamente a hns3_nic_net_open(), pero no se puede verificar esto. Al restablecer y configurar tc el dispositivo simult\\u00e1neamente, existe una peque\\u00f1a oportunidad de llamar a hns3_nic_net_open repetidamente y causar un error en el kernel al llamar a napi_enable dos veces. La informaci\\u00f3n del seguimiento de llamadas es la siguiente: [3078.222780] ------------[ cortar aqu\\u00ed ]------------ [ 3078.230255] BUG del kernel en net/core/dev. c:6991! [3078.236224] Error interno: Ups - BUG: 0 [#1] SMP PREEMPLEADO [3078.243431] M\\u00f3dulos vinculados en: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O) [ 3078.258880 CPU : 0 PID: 295 Comunicaciones: kworker/u8 :5 Contaminado: GO 5.14.0-rc4+ #1 [ 3078.269102] Nombre de hardware: , BIOS KpxxxFPGA 1P B600 V181 12/08/2021 [ 3078.276801] Cola de trabajo: hclge hclge_service_task [hclge] [ 3078.288774] pstate: 0009 (nZCv daif +PAN -UAO -TCO BTYPE=--) [ 3078.296168] pc : napi_enable+0x80/0x84 tc qdisc sho[w 3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3] [ 3078.314771] sp : 8000108abb20 [3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300 [ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 00000000000 00000 [ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880 [ 3078.349018] x20: 0000000000000000 x19: 00 x18: 0000000000000000 [ 3078.358620] x17: 0000000000000000 x16 : ffffc816e1727a50 x15: 0000ffff8f4ff930 [ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4 [ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9: ffffc816ad8885b8 [3078.387091] x8: ffff08209cfc6fb8 x7: ffff0820ac0da058 x6: ffff0820a8490344 [ 3 078.396356] x5: 0000000000000140 x4: 0000000000000003 x3: ffff08209cd76938 [3078.405365] x2: 0000000000000000 x1: 0000000000000010 x0: ffff0820abfe38a0 [3078.414657] Rastreo de llamadas: [3078.418517] +0x80/0x84 [ 3078.424626] hns3_reset_notify_up_enet+0x78/0xd0 [hns3] [ 3078.433469] hns3_reset_notify+0x64/0x80 [hns3 ] [ 3078.441430] hclge_notify_client+0x68/0xb0 [hclge] [ 3078.450511] hclge_reset_rebuild+0x524/0x884 [hclge] [ 3078.458879] hclge_reset_service_task+0x3c4/0x680 [hclge] 3078.467470] hclge_service_task+0xb0/0xb54 [hclge] [ 3078.475675] proceso_one_work+ 0x1dc/0x48c [ 3078.481888] work_thread+0x15c/0x464 [ 3078.487104] kthread+0x160/0x170 [ 3078.492479] ret_from_fork+0x10/0x18 [ 3078.498785] C\\u00f3digo: c81 35ffffa2 d50323bf d65f03c0 (d4210000) [ 3078.506889] ---[ final de seguimiento 8ebe0340a1b0fb44 ] --- Una vez que hns3_nic_net_open() se ejecute correctamente, se borrar\\u00e1 el indicador HNS3_NIC_STATE_DOWN. Por lo tanto, agregue la verificaci\\u00f3n de este indicador y regrese directamente cuando HNS3_NIC_STATE_DOWN no est\\u00e9 configurado.\"}]",
      "id": "CVE-2021-47400",
      "lastModified": "2024-11-21T06:36:03.997",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 4.0, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 2.5, \"impactScore\": 1.4}]}",
      "published": "2024-05-21T15:15:25.457",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/3dac38bdce7932901b9f0b71c62331852c809e61\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/5b09e88e1bf7fe86540fab4b5f3eece8abead39e\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/f8ba689cb69523144d10606096ef686002dd7285\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}, {\"url\": \"https://git.kernel.org/stable/c/3dac38bdce7932901b9f0b71c62331852c809e61\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/5b09e88e1bf7fe86540fab4b5f3eece8abead39e\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://git.kernel.org/stable/c/f8ba689cb69523144d10606096ef686002dd7285\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47400\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:25.457\",\"lastModified\":\"2025-09-25T15:35:04.500\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: hns3: do not allow call hns3_nic_net_open repeatedly\\n\\nhns3_nic_net_open() is not allowed to called repeatly, but there\\nis no checking for this. When doing device reset and setup tc\\nconcurrently, there is a small oppotunity to call hns3_nic_net_open\\nrepeatedly, and cause kernel bug by calling napi_enable twice.\\n\\nThe calltrace information is like below:\\n[ 3078.222780] ------------[ cut here ]------------\\n[ 3078.230255] kernel BUG at net/core/dev.c:6991!\\n[ 3078.236224] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\\n[ 3078.243431] Modules linked in: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O)\\n[ 3078.258880] CPU: 0 PID: 295 Comm: kworker/u8:5 Tainted: G           O      5.14.0-rc4+ #1\\n[ 3078.269102] Hardware name:  , BIOS KpxxxFPGA 1P B600 V181 08/12/2021\\n[ 3078.276801] Workqueue: hclge hclge_service_task [hclge]\\n[ 3078.288774] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--)\\n[ 3078.296168] pc : napi_enable+0x80/0x84\\ntc qdisc sho[w  3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3]\\n\\n[ 3078.314771] sp : ffff8000108abb20\\n[ 3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300\\n[ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 0000000000000000\\n[ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880\\n[ 3078.349018] x20: 0000000000000000 x19: ffff08209cd76900 x18: 0000000000000000\\n[ 3078.358620] x17: 0000000000000000 x16: ffffc816e1727a50 x15: 0000ffff8f4ff930\\n[ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4\\n[ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9 : ffffc816ad8885b8\\n[ 3078.387091] x8 : ffff08209cfc6fb8 x7 : ffff0820ac0da058 x6 : ffff0820a8490344\\n[ 3078.396356] x5 : 0000000000000140 x4 : 0000000000000003 x3 : ffff08209cd76938\\n[ 3078.405365] x2 : 0000000000000000 x1 : 0000000000000010 x0 : ffff0820abfe38a0\\n[ 3078.414657] Call trace:\\n[ 3078.418517]  napi_enable+0x80/0x84\\n[ 3078.424626]  hns3_reset_notify_up_enet+0x78/0xd0 [hns3]\\n[ 3078.433469]  hns3_reset_notify+0x64/0x80 [hns3]\\n[ 3078.441430]  hclge_notify_client+0x68/0xb0 [hclge]\\n[ 3078.450511]  hclge_reset_rebuild+0x524/0x884 [hclge]\\n[ 3078.458879]  hclge_reset_service_task+0x3c4/0x680 [hclge]\\n[ 3078.467470]  hclge_service_task+0xb0/0xb54 [hclge]\\n[ 3078.475675]  process_one_work+0x1dc/0x48c\\n[ 3078.481888]  worker_thread+0x15c/0x464\\n[ 3078.487104]  kthread+0x160/0x170\\n[ 3078.492479]  ret_from_fork+0x10/0x18\\n[ 3078.498785] Code: c8027c81 35ffffa2 d50323bf d65f03c0 (d4210000)\\n[ 3078.506889] ---[ end trace 8ebe0340a1b0fb44 ]---\\n\\nOnce hns3_nic_net_open() is excute success, the flag\\nHNS3_NIC_STATE_DOWN will be cleared. So add checking for this\\nflag, directly return when HNS3_NIC_STATE_DOWN is no set.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: hns3: no permitir llamadas repetidas a hns3_nic_net_open. No se permite llamar repetidamente a hns3_nic_net_open(), pero no se puede verificar esto. Al restablecer y configurar tc el dispositivo simult\u00e1neamente, existe una peque\u00f1a oportunidad de llamar a hns3_nic_net_open repetidamente y causar un error en el kernel al llamar a napi_enable dos veces. La informaci\u00f3n del seguimiento de llamadas es la siguiente: [3078.222780] ------------[ cortar aqu\u00ed ]------------ [ 3078.230255] BUG del kernel en net/core/dev. c:6991! [3078.236224] Error interno: Ups - BUG: 0 [#1] SMP PREEMPLEADO [3078.243431] M\u00f3dulos vinculados en: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O) [ 3078.258880 CPU : 0 PID: 295 Comunicaciones: kworker/u8 :5 Contaminado: GO 5.14.0-rc4+ #1 [ 3078.269102] Nombre de hardware: , BIOS KpxxxFPGA 1P B600 V181 12/08/2021 [ 3078.276801] Cola de trabajo: hclge hclge_service_task [hclge] [ 3078.288774] pstate: 0009 (nZCv daif +PAN -UAO -TCO BTYPE=--) [ 3078.296168] pc : napi_enable+0x80/0x84 tc qdisc sho[w 3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3] [ 3078.314771] sp : 8000108abb20 [3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300 [ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 00000000000 00000 [ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880 [ 3078.349018] x20: 0000000000000000 x19: 00 x18: 0000000000000000 [ 3078.358620] x17: 0000000000000000 x16 : ffffc816e1727a50 x15: 0000ffff8f4ff930 [ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4 [ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9: ffffc816ad8885b8 [3078.387091] x8: ffff08209cfc6fb8 x7: ffff0820ac0da058 x6: ffff0820a8490344 [ 3 078.396356] x5: 0000000000000140 x4: 0000000000000003 x3: ffff08209cd76938 [3078.405365] x2: 0000000000000000 x1: 0000000000000010 x0: ffff0820abfe38a0 [3078.414657] Rastreo de llamadas: [3078.418517] +0x80/0x84 [ 3078.424626] hns3_reset_notify_up_enet+0x78/0xd0 [hns3] [ 3078.433469] hns3_reset_notify+0x64/0x80 [hns3 ] [ 3078.441430] hclge_notify_client+0x68/0xb0 [hclge] [ 3078.450511] hclge_reset_rebuild+0x524/0x884 [hclge] [ 3078.458879] hclge_reset_service_task+0x3c4/0x680 [hclge] 3078.467470] hclge_service_task+0xb0/0xb54 [hclge] [ 3078.475675] proceso_one_work+ 0x1dc/0x48c [ 3078.481888] work_thread+0x15c/0x464 [ 3078.487104] kthread+0x160/0x170 [ 3078.492479] ret_from_fork+0x10/0x18 [ 3078.498785] C\u00f3digo: c81 35ffffa2 d50323bf d65f03c0 (d4210000) [ 3078.506889] ---[ final de seguimiento 8ebe0340a1b0fb44 ] --- Una vez que hns3_nic_net_open() se ejecute correctamente, se borrar\u00e1 el indicador HNS3_NIC_STATE_DOWN. Por lo tanto, agregue la verificaci\u00f3n de este indicador y regrese directamente cuando HNS3_NIC_STATE_DOWN no est\u00e9 configurado.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":4.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.5,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.0\",\"versionEndExcluding\":\"5.4.151\",\"matchCriteriaId\":\"B178BD06-0B91-4A7A-B7A1-D512D04B9C79\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.71\",\"matchCriteriaId\":\"60C740E4-6C54-40CD-A914-2232D8FC781D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.14.10\",\"matchCriteriaId\":\"1A437B0D-8305-4C72-B691-D26986A126CF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"E46C74C6-B76B-4C94-A6A4-FD2FFF62D644\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"60134C3A-06E4-48C1-B04F-2903732A4E56\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"0460DA88-8FE1-46A2-9DDA-1F1ABA552E71\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3dac38bdce7932901b9f0b71c62331852c809e61\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5b09e88e1bf7fe86540fab4b5f3eece8abead39e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f8ba689cb69523144d10606096ef686002dd7285\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3dac38bdce7932901b9f0b71c62331852c809e61\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5b09e88e1bf7fe86540fab4b5f3eece8abead39e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f8ba689cb69523144d10606096ef686002dd7285\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/f8ba689cb69523144d10606096ef686002dd7285\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/3dac38bdce7932901b9f0b71c62331852c809e61\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/5b09e88e1bf7fe86540fab4b5f3eece8abead39e\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:39:59.446Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47400\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-28T18:26:38.689847Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-28T18:26:46.002Z\"}}], \"cna\": {\"title\": \"net: hns3: do not allow call hns3_nic_net_open repeatedly\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e888402789b9db5de4fcda361331d66dbf0cd9fd\", \"lessThan\": \"5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e888402789b9db5de4fcda361331d66dbf0cd9fd\", \"lessThan\": \"f8ba689cb69523144d10606096ef686002dd7285\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e888402789b9db5de4fcda361331d66dbf0cd9fd\", \"lessThan\": \"3dac38bdce7932901b9f0b71c62331852c809e61\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e888402789b9db5de4fcda361331d66dbf0cd9fd\", \"lessThan\": \"5b09e88e1bf7fe86540fab4b5f3eece8abead39e\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/hisilicon/hns3/hns3_enet.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.151\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.71\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.14.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.14.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/hisilicon/hns3/hns3_enet.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5a31d4e73ada8022427b69b10fd1f01a6a8d4b3d\"}, {\"url\": \"https://git.kernel.org/stable/c/f8ba689cb69523144d10606096ef686002dd7285\"}, {\"url\": \"https://git.kernel.org/stable/c/3dac38bdce7932901b9f0b71c62331852c809e61\"}, {\"url\": \"https://git.kernel.org/stable/c/5b09e88e1bf7fe86540fab4b5f3eece8abead39e\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: hns3: do not allow call hns3_nic_net_open repeatedly\\n\\nhns3_nic_net_open() is not allowed to called repeatly, but there\\nis no checking for this. When doing device reset and setup tc\\nconcurrently, there is a small oppotunity to call hns3_nic_net_open\\nrepeatedly, and cause kernel bug by calling napi_enable twice.\\n\\nThe calltrace information is like below:\\n[ 3078.222780] ------------[ cut here ]------------\\n[ 3078.230255] kernel BUG at net/core/dev.c:6991!\\n[ 3078.236224] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\\n[ 3078.243431] Modules linked in: hns3 hclgevf hclge hnae3 vfio_iommu_type1 vfio_pci vfio_virqfd vfio pv680_mii(O)\\n[ 3078.258880] CPU: 0 PID: 295 Comm: kworker/u8:5 Tainted: G           O      5.14.0-rc4+ #1\\n[ 3078.269102] Hardware name:  , BIOS KpxxxFPGA 1P B600 V181 08/12/2021\\n[ 3078.276801] Workqueue: hclge hclge_service_task [hclge]\\n[ 3078.288774] pstate: 60400009 (nZCv daif +PAN -UAO -TCO BTYPE=--)\\n[ 3078.296168] pc : napi_enable+0x80/0x84\\ntc qdisc sho[w  3d0e7v8 .e3t0h218 79] lr : hns3_nic_net_open+0x138/0x510 [hns3]\\n\\n[ 3078.314771] sp : ffff8000108abb20\\n[ 3078.319099] x29: ffff8000108abb20 x28: 0000000000000000 x27: ffff0820a8490300\\n[ 3078.329121] x26: 0000000000000001 x25: ffff08209cfc6200 x24: 0000000000000000\\n[ 3078.339044] x23: ffff0820a8490300 x22: ffff08209cd76000 x21: ffff0820abfe3880\\n[ 3078.349018] x20: 0000000000000000 x19: ffff08209cd76900 x18: 0000000000000000\\n[ 3078.358620] x17: 0000000000000000 x16: ffffc816e1727a50 x15: 0000ffff8f4ff930\\n[ 3078.368895] x14: 0000000000000000 x13: 0000000000000000 x12: 0000259e9dbeb6b4\\n[ 3078.377987] x11: 0096a8f7e764eb40 x10: 634615ad28d3eab5 x9 : ffffc816ad8885b8\\n[ 3078.387091] x8 : ffff08209cfc6fb8 x7 : ffff0820ac0da058 x6 : ffff0820a8490344\\n[ 3078.396356] x5 : 0000000000000140 x4 : 0000000000000003 x3 : ffff08209cd76938\\n[ 3078.405365] x2 : 0000000000000000 x1 : 0000000000000010 x0 : ffff0820abfe38a0\\n[ 3078.414657] Call trace:\\n[ 3078.418517]  napi_enable+0x80/0x84\\n[ 3078.424626]  hns3_reset_notify_up_enet+0x78/0xd0 [hns3]\\n[ 3078.433469]  hns3_reset_notify+0x64/0x80 [hns3]\\n[ 3078.441430]  hclge_notify_client+0x68/0xb0 [hclge]\\n[ 3078.450511]  hclge_reset_rebuild+0x524/0x884 [hclge]\\n[ 3078.458879]  hclge_reset_service_task+0x3c4/0x680 [hclge]\\n[ 3078.467470]  hclge_service_task+0xb0/0xb54 [hclge]\\n[ 3078.475675]  process_one_work+0x1dc/0x48c\\n[ 3078.481888]  worker_thread+0x15c/0x464\\n[ 3078.487104]  kthread+0x160/0x170\\n[ 3078.492479]  ret_from_fork+0x10/0x18\\n[ 3078.498785] Code: c8027c81 35ffffa2 d50323bf d65f03c0 (d4210000)\\n[ 3078.506889] ---[ end trace 8ebe0340a1b0fb44 ]---\\n\\nOnce hns3_nic_net_open() is excute success, the flag\\nHNS3_NIC_STATE_DOWN will be cleared. So add checking for this\\nflag, directly return when HNS3_NIC_STATE_DOWN is no set.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.151\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.71\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.14.10\", \"versionStartIncluding\": \"5.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15\", \"versionStartIncluding\": \"5.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:10:11.180Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47400\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:10:11.180Z\", \"dateReserved\": \"2024-05-21T14:58:30.816Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:03:55.368Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • 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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.