ghsa-wwxf-59f4-wv9m
Vulnerability from github
Published
2024-10-21 21:30
Modified
2024-11-08 18:30
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:

net: Fix an unsafe loop on the list

The kernel may crash when deleting a genetlink family if there are still listeners for that family:

Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c000000000c080bc] netlink_update_socket_mc+0x3c/0xc0 LR [c000000000c0f764] __netlink_clear_multicast_users+0x74/0xc0 Call Trace: __netlink_clear_multicast_users+0x74/0xc0 genl_unregister_family+0xd4/0x2d0

Change the unsafe loop on the list to a safe one, because inside the loop there is an element removal from this list.

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{
   affected: [],
   aliases: [
      "CVE-2024-50024",
   ],
   database_specific: {
      cwe_ids: [],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-10-21T20:15:15Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: Fix an unsafe loop on the list\n\nThe kernel may crash when deleting a genetlink family if there are still\nlisteners for that family:\n\nOops: Kernel access of bad area, sig: 11 [#1]\n  ...\n  NIP [c000000000c080bc] netlink_update_socket_mc+0x3c/0xc0\n  LR [c000000000c0f764] __netlink_clear_multicast_users+0x74/0xc0\n  Call Trace:\n__netlink_clear_multicast_users+0x74/0xc0\ngenl_unregister_family+0xd4/0x2d0\n\nChange the unsafe loop on the list to a safe one, because inside the\nloop there is an element removal from this list.",
   id: "GHSA-wwxf-59f4-wv9m",
   modified: "2024-11-08T18:30:46Z",
   published: "2024-10-21T21:30:53Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-50024",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/1cdec792b2450105b1314c5123a9a0452cb2c2f0",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/1dae9f1187189bc09ff6d25ca97ead711f7e26f9",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/3be342e0332a7c83eb26fbb22bf156fdca467a5d",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/464801a0f6ccb52b21faa33bac6014fd74cc5e10",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/49f9b726bf2bf3dd2caf0d27cadf4bc1ccf7a7dd",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/5f03a7f601f33cda1f710611625235dc86fd8a9e",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/68ad5da6ca630a276f0a5c924179e57724d00013",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/8e0766fcf37ad8eed289dd3853628dd9b01b58b0",
      },
   ],
   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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