cve-2021-47196
Vulnerability from cvelistv5
Published
2024-04-10 18:56
Modified
2024-11-04 12:01
Severity ?
Summary
RDMA/core: Set send and receive CQ before forwarding to the driver
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6cd7397d01c4a3e09757840299e4f114f0aa5fa0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b70e072feffa0ba5c41a99b9524b9878dee7748e
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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                "id": "CVE-2021-47196",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-04-10T19:32:29.319944Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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          "dateUpdated": "2024-08-04T05:32:07.459Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/infiniband/core/verbs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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          "vendor": "Linux",
          "versions": [
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              "version": "5.15"
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              "version": "0",
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              "version": "5.16",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Set send and receive CQ before forwarding to the driver\n\nPreset both receive and send CQ pointers prior to call to the drivers and\noverwrite it later again till the mlx4 is going to be changed do not\noverwrite ibqp properties.\n\nThis change is needed for mlx5, because in case of QP creation failure, it\nwill go to the path of QP destroy which relies on proper CQ pointers.\n\n BUG: KASAN: use-after-free in create_qp.cold+0x164/0x16e [mlx5_ib]\n Write of size 8 at addr ffff8880064c55c0 by task a.out/246\n\n CPU: 0 PID: 246 Comm: a.out Not tainted 5.15.0+ #291\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n Call Trace:\n  dump_stack_lvl+0x45/0x59\n  print_address_description.constprop.0+0x1f/0x140\n  kasan_report.cold+0x83/0xdf\n  create_qp.cold+0x164/0x16e [mlx5_ib]\n  mlx5_ib_create_qp+0x358/0x28a0 [mlx5_ib]\n  create_qp.part.0+0x45b/0x6a0 [ib_core]\n  ib_create_qp_user+0x97/0x150 [ib_core]\n  ib_uverbs_handler_UVERBS_METHOD_QP_CREATE+0x92c/0x1250 [ib_uverbs]\n  ib_uverbs_cmd_verbs+0x1c38/0x3150 [ib_uverbs]\n  ib_uverbs_ioctl+0x169/0x260 [ib_uverbs]\n  __x64_sys_ioctl+0x866/0x14d0\n  do_syscall_64+0x3d/0x90\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\n\n Allocated by task 246:\n  kasan_save_stack+0x1b/0x40\n  __kasan_kmalloc+0xa4/0xd0\n  create_qp.part.0+0x92/0x6a0 [ib_core]\n  ib_create_qp_user+0x97/0x150 [ib_core]\n  ib_uverbs_handler_UVERBS_METHOD_QP_CREATE+0x92c/0x1250 [ib_uverbs]\n  ib_uverbs_cmd_verbs+0x1c38/0x3150 [ib_uverbs]\n  ib_uverbs_ioctl+0x169/0x260 [ib_uverbs]\n  __x64_sys_ioctl+0x866/0x14d0\n  do_syscall_64+0x3d/0x90\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\n\n Freed by task 246:\n  kasan_save_stack+0x1b/0x40\n  kasan_set_track+0x1c/0x30\n  kasan_set_free_info+0x20/0x30\n  __kasan_slab_free+0x10c/0x150\n  slab_free_freelist_hook+0xb4/0x1b0\n  kfree+0xe7/0x2a0\n  create_qp.part.0+0x52b/0x6a0 [ib_core]\n  ib_create_qp_user+0x97/0x150 [ib_core]\n  ib_uverbs_handler_UVERBS_METHOD_QP_CREATE+0x92c/0x1250 [ib_uverbs]\n  ib_uverbs_cmd_verbs+0x1c38/0x3150 [ib_uverbs]\n  ib_uverbs_ioctl+0x169/0x260 [ib_uverbs]\n  __x64_sys_ioctl+0x866/0x14d0\n  do_syscall_64+0x3d/0x90\n  entry_SYSCALL_64_after_hwframe+0x44/0xae"
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        "dateUpdated": "2024-11-04T12:01:19.499Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47196",
    "datePublished": "2024-04-10T18:56:32.634Z",
    "dateReserved": "2024-03-25T09:12:14.115Z",
    "dateUpdated": "2024-11-04T12:01:19.499Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47196\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-10T19:15:47.897\",\"lastModified\":\"2024-04-10T19:49:51.183\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nRDMA/core: Set send and receive CQ before forwarding to the driver\\n\\nPreset both receive and send CQ pointers prior to call to the drivers and\\noverwrite it later again till the mlx4 is going to be changed do not\\noverwrite ibqp properties.\\n\\nThis change is needed for mlx5, because in case of QP creation failure, it\\nwill go to the path of QP destroy which relies on proper CQ pointers.\\n\\n BUG: KASAN: use-after-free in create_qp.cold+0x164/0x16e [mlx5_ib]\\n Write of size 8 at addr ffff8880064c55c0 by task a.out/246\\n\\n CPU: 0 PID: 246 Comm: a.out Not tainted 5.15.0+ #291\\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\\n Call Trace:\\n  dump_stack_lvl+0x45/0x59\\n  print_address_description.constprop.0+0x1f/0x140\\n  kasan_report.cold+0x83/0xdf\\n  create_qp.cold+0x164/0x16e [mlx5_ib]\\n  mlx5_ib_create_qp+0x358/0x28a0 [mlx5_ib]\\n  create_qp.part.0+0x45b/0x6a0 [ib_core]\\n  ib_create_qp_user+0x97/0x150 [ib_core]\\n  ib_uverbs_handler_UVERBS_METHOD_QP_CREATE+0x92c/0x1250 [ib_uverbs]\\n  ib_uverbs_cmd_verbs+0x1c38/0x3150 [ib_uverbs]\\n  ib_uverbs_ioctl+0x169/0x260 [ib_uverbs]\\n  __x64_sys_ioctl+0x866/0x14d0\\n  do_syscall_64+0x3d/0x90\\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\\n\\n Allocated by task 246:\\n  kasan_save_stack+0x1b/0x40\\n  __kasan_kmalloc+0xa4/0xd0\\n  create_qp.part.0+0x92/0x6a0 [ib_core]\\n  ib_create_qp_user+0x97/0x150 [ib_core]\\n  ib_uverbs_handler_UVERBS_METHOD_QP_CREATE+0x92c/0x1250 [ib_uverbs]\\n  ib_uverbs_cmd_verbs+0x1c38/0x3150 [ib_uverbs]\\n  ib_uverbs_ioctl+0x169/0x260 [ib_uverbs]\\n  __x64_sys_ioctl+0x866/0x14d0\\n  do_syscall_64+0x3d/0x90\\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\\n\\n Freed by task 246:\\n  kasan_save_stack+0x1b/0x40\\n  kasan_set_track+0x1c/0x30\\n  kasan_set_free_info+0x20/0x30\\n  __kasan_slab_free+0x10c/0x150\\n  slab_free_freelist_hook+0xb4/0x1b0\\n  kfree+0xe7/0x2a0\\n  create_qp.part.0+0x52b/0x6a0 [ib_core]\\n  ib_create_qp_user+0x97/0x150 [ib_core]\\n  ib_uverbs_handler_UVERBS_METHOD_QP_CREATE+0x92c/0x1250 [ib_uverbs]\\n  ib_uverbs_cmd_verbs+0x1c38/0x3150 [ib_uverbs]\\n  ib_uverbs_ioctl+0x169/0x260 [ib_uverbs]\\n  __x64_sys_ioctl+0x866/0x14d0\\n  do_syscall_64+0x3d/0x90\\n  entry_SYSCALL_64_after_hwframe+0x44/0xae\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6cd7397d01c4a3e09757840299e4f114f0aa5fa0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b70e072feffa0ba5c41a99b9524b9878dee7748e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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