ghsa-4mff-cr8h-2rm2
Vulnerability from github
Published
2025-04-14 21:32
Modified
2025-04-14 21:32
Details

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

tipc: check attribute length for bearer name

syzbot reported uninit-value:

BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:644 [inline] BUG: KMSAN: uninit-value in string+0x4f9/0x6f0 lib/vsprintf.c:725 string_nocheck lib/vsprintf.c:644 [inline] string+0x4f9/0x6f0 lib/vsprintf.c:725 vsnprintf+0x2222/0x3650 lib/vsprintf.c:2806 vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158 vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256 vprintk_default+0x86/0xa0 kernel/printk/printk.c:2283 vprintk+0x15f/0x180 kernel/printk/printk_safe.c:50 _printk+0x18d/0x1cf kernel/printk/printk.c:2293 tipc_enable_bearer net/tipc/bearer.c:371 [inline] __tipc_nl_bearer_enable+0x2022/0x22a0 net/tipc/bearer.c:1033 tipc_nl_bearer_enable+0x6c/0xb0 net/tipc/bearer.c:1042 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]

  • Do sanity check the attribute length for TIPC_NLA_BEARER_NAME.
  • Do not use 'illegal name' in printing message.
Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2022-49374"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: check attribute length for bearer name\n\nsyzbot reported uninit-value:\n=====================================================\nBUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:644 [inline]\nBUG: KMSAN: uninit-value in string+0x4f9/0x6f0 lib/vsprintf.c:725\n string_nocheck lib/vsprintf.c:644 [inline]\n string+0x4f9/0x6f0 lib/vsprintf.c:725\n vsnprintf+0x2222/0x3650 lib/vsprintf.c:2806\n vprintk_store+0x537/0x2150 kernel/printk/printk.c:2158\n vprintk_emit+0x28b/0xab0 kernel/printk/printk.c:2256\n vprintk_default+0x86/0xa0 kernel/printk/printk.c:2283\n vprintk+0x15f/0x180 kernel/printk/printk_safe.c:50\n _printk+0x18d/0x1cf kernel/printk/printk.c:2293\n tipc_enable_bearer net/tipc/bearer.c:371 [inline]\n __tipc_nl_bearer_enable+0x2022/0x22a0 net/tipc/bearer.c:1033\n tipc_nl_bearer_enable+0x6c/0xb0 net/tipc/bearer.c:1042\n genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]\n\n- Do sanity check the attribute length for TIPC_NLA_BEARER_NAME.\n- Do not use \u0027illegal name\u0027 in printing message.",
  "id": "GHSA-4mff-cr8h-2rm2",
  "modified": "2025-04-14T21:32:23Z",
  "published": "2025-04-14T21:32:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49374"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/292be63c382ce20673ee61dff1ee9ed4a3dcaae7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3af15272cde28fe5c8489174b8624e232c1775ec"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7f36f798f89bf32c0164049cb0e3fd1af613d0bb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b91d0dfc839e67708c905648cd0e7507a2263e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92a930fcf4250fe961f6238b99af0bc405799f39"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b8fac8e321044a9ac50f7185b4e9d91a7745e4b0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f07670871f4d19e613740eebe210e7e9ea535973"
    }
  ],
  "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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