{
  "cveId": "CVE-2023-53824",
  "url": "https://patchblox.com/security/cve/CVE-2023-53824",
  "summary": "CVE-2023-53824 is fixed in 20 products on 1 platform, first by ALAS2023-2023-169, released April 27, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  netlink: annotate lockless accesses to nlk-\u003Emax_...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  netlink: annotate lockless accesses to nlk-\u003Emax_recvmsg_len  syzbot reported a data-race in data-race in netlink_recvmsg() [1]  Indeed, netlink_recvmsg() can be run concurrently, and netlink_dump() also needs protection.  [1] BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg  read to 0xffff888141840b38 of 8 bytes by task 23057 on cpu 0: netlink_recvmsg\u002B0xea/0x730 net/netlink/af_netlink.c:1988 sock_recvmsg_nosec net/socket.c:1017 [inline] sock_recvmsg net/socket.c:1038 [inline] __sys_recvfrom\u002B0x1ee/0x2e0 net/socket.c:2194 __do_sys_recvfrom net/socket.c:2212 [inline] __se_sys_recvfrom net/socket.c:2208 [inline] __x64_sys_recvfrom\u002B0x78/0x90 net/socket.c:2208 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64\u002B0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe\u002B0x63/0xcd  write to 0xffff888141840b38 of 8 bytes by task 23037 on cpu 1: netlink_recvmsg\u002B0x114/0x730 net/netlink/af_netlink.c:1989 sock_recvmsg_nosec net/socket.c:1017 [inline] sock_recvmsg net/socket.c:1038 [inline] ____sys_recvmsg\u002B0x156/0x310 net/socket.c:2720 ___sys_recvmsg net/socket.c:2762 [inline] do_recvmmsg\u002B0x2e5/0x710 net/socket.c:2856 __sys_recvmmsg net/socket.c:2935 [inline] __do_sys_recvmmsg net/socket.c:2958 [inline] __se_sys_recvmmsg net/socket.c:2951 [inline] __x64_sys_recvmmsg\u002B0xe2/0x160 net/socket.c:2951 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64\u002B0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe\u002B0x63/0xcd  value changed: 0x0000000000000000 -\u003E 0x0000000000001000  Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 23037 Comm: syz-executor.2 Not tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023",
  "published": "2023-04-27T20:00:00Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00194,
  "epssPercentile": 0.09161,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-headers",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.1.25-37.47",
      "release": "amzn 2023",
      "fixedVersion": "1.0-0.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53824",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53824",
      "released": "2025-12-09T16:17:21Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53824",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53824",
      "released": "2025-12-09T16:17:21Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53824",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53824",
      "released": "2025-12-09T16:17:21Z"
    },
    {
      "platform": "linux",
      "product": "perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.25-37.47.amzn2023",
      "fix": "ALAS2023-2023-169",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-169",
      "released": "2023-04-27T20:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}