ghsa-7vv8-23mh-rqfj
Vulnerability from github
Published
2024-06-19 15:30
Modified
2024-08-27 18:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

nfc: fix segfault in nfc_genl_dump_devices_done

When kmalloc in nfc_genl_dump_devices() fails then nfc_genl_dump_devices_done() segfaults as below

KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014 Workqueue: events netlink_sock_destruct_work RIP: 0010:klist_iter_exit+0x26/0x80 Call Trace: class_dev_iter_exit+0x15/0x20 nfc_genl_dump_devices_done+0x3b/0x50 genl_lock_done+0x84/0xd0 netlink_sock_destruct+0x8f/0x270 __sk_destruct+0x64/0x3b0 sk_destruct+0xa8/0xd0 __sk_free+0x2e8/0x3d0 sk_free+0x51/0x90 netlink_sock_destruct_work+0x1c/0x20 process_one_work+0x411/0x710 worker_thread+0x6fd/0xa80

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{
   affected: [],
   aliases: [
      "CVE-2021-47612",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-476",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-06-19T15:15:55Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: fix segfault in nfc_genl_dump_devices_done\n\nWhen kmalloc in nfc_genl_dump_devices() fails then\nnfc_genl_dump_devices_done() segfaults as below\n\nKASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\nCPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014\nWorkqueue: events netlink_sock_destruct_work\nRIP: 0010:klist_iter_exit+0x26/0x80\nCall Trace:\n<TASK>\nclass_dev_iter_exit+0x15/0x20\nnfc_genl_dump_devices_done+0x3b/0x50\ngenl_lock_done+0x84/0xd0\nnetlink_sock_destruct+0x8f/0x270\n__sk_destruct+0x64/0x3b0\nsk_destruct+0xa8/0xd0\n__sk_free+0x2e8/0x3d0\nsk_free+0x51/0x90\nnetlink_sock_destruct_work+0x1c/0x20\nprocess_one_work+0x411/0x710\nworker_thread+0x6fd/0xa80",
   id: "GHSA-7vv8-23mh-rqfj",
   modified: "2024-08-27T18:31:35Z",
   published: "2024-06-19T15:30:55Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2021-47612",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/214af18abbe39db05beb305b2d11e87d09a6529c",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/2a8845b9603c545fddd17862282dc4c4ce0971e3",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/6644989642844de830f9b072cd65c553cb55946c",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/c602863ad28ec86794cb4ab4edea5324f555f181",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/d731ecc6f2eaec68f4ad1542283bbc7d07bd0112",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/d89e4211b51752daf063d638af50abed2fd5f96d",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/ea55b3797878752aa076b118afb727dcf79cac34",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/fd79a0cbf0b2e34bcc45b13acf962e2032a82203",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
         type: "CVSS_V3",
      },
   ],
}


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