{
  "threat_severity" : "Moderate",
  "public_date" : "2024-10-29T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: Bluetooth: ISO: Fix multiple init when debugfs is disabled",
    "id" : "2322303",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2322303"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-665",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: ISO: Fix multiple init when debugfs is disabled\nIf bt_debugfs is not created successfully, which happens if either\nCONFIG_DEBUG_FS or CONFIG_DEBUG_FS_ALLOW_ALL is unset, then iso_init()\nreturns early and does not set iso_inited to true. This means that a\nsubsequent call to iso_init() will result in duplicate calls to\nproto_register(), bt_sock_register(), etc.\nWith CONFIG_LIST_HARDENED and CONFIG_BUG_ON_DATA_CORRUPTION enabled, the\nduplicate call to proto_register() triggers this BUG():\nlist_add double add: new=ffffffffc0b280d0, prev=ffffffffbab56250,\nnext=ffffffffc0b280d0.\n------------[ cut here ]------------\nkernel BUG at lib/list_debug.c:35!\nOops: invalid opcode: 0000 [#1] PREEMPT SMP PTI\nCPU: 2 PID: 887 Comm: bluetoothd Not tainted 6.10.11-1-ao-desktop #1\nRIP: 0010:__list_add_valid_or_report+0x9a/0xa0\n...\n__list_add_valid_or_report+0x9a/0xa0\nproto_register+0x2b5/0x340\niso_init+0x23/0x150 [bluetooth]\nset_iso_socket_func+0x68/0x1b0 [bluetooth]\nkmem_cache_free+0x308/0x330\nhci_sock_sendmsg+0x990/0x9e0 [bluetooth]\n__sock_sendmsg+0x7b/0x80\nsock_write_iter+0x9a/0x110\ndo_iter_readv_writev+0x11d/0x220\nvfs_writev+0x180/0x3e0\ndo_writev+0xca/0x100\n...\nThis change removes the early return. The check for iso_debugfs being\nNULL was unnecessary, it is always NULL when iso_inited is false." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:6966",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-570.12.1.el9_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:6966",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-570.12.1.el9_6"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Will not fix",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-50077\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-50077\nhttps://lore.kernel.org/linux-cve-announce/2024102936-CVE-2024-50077-2940@gregkh/T" ],
  "name" : "CVE-2024-50077",
  "csaw" : false
}