{
  "cveId": "CVE-2023-53853",
  "url": "https://patchblox.com/security/cve/CVE-2023-53853",
  "summary": "CVE-2023-53853 is fixed in 20 products on 1 platform, first by ALAS2023-2023-228, released June 21, 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 accesses to nlk-\u003Ecb_running  B...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  netlink: annotate accesses to nlk-\u003Ecb_running  Both netlink_recvmsg() and netlink_native_seq_show() read nlk-\u003Ecb_running locklessly. Use READ_ONCE() there.  Add corresponding WRITE_ONCE() to netlink_dump() and __netlink_dump_start()  syzbot reported: BUG: KCSAN: data-race in __netlink_dump_start / netlink_recvmsg  write to 0xffff88813ea4db59 of 1 bytes by task 28219 on cpu 0: __netlink_dump_start\u002B0x3af/0x4d0 net/netlink/af_netlink.c:2399 netlink_dump_start include/linux/netlink.h:308 [inline] rtnetlink_rcv_msg\u002B0x70f/0x8c0 net/core/rtnetlink.c:6130 netlink_rcv_skb\u002B0x126/0x220 net/netlink/af_netlink.c:2577 rtnetlink_rcv\u002B0x1c/0x20 net/core/rtnetlink.c:6192 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast\u002B0x56f/0x640 net/netlink/af_netlink.c:1365 netlink_sendmsg\u002B0x665/0x770 net/netlink/af_netlink.c:1942 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg net/socket.c:747 [inline] sock_write_iter\u002B0x1aa/0x230 net/socket.c:1138 call_write_iter include/linux/fs.h:1851 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write\u002B0x463/0x760 fs/read_write.c:584 ksys_write\u002B0xeb/0x1a0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __x64_sys_write\u002B0x42/0x50 fs/read_write.c:646 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  read to 0xffff88813ea4db59 of 1 bytes by task 28222 on cpu 1: netlink_recvmsg\u002B0x3b4/0x730 net/netlink/af_netlink.c:2022 sock_recvmsg_nosec\u002B0x4c/0x80 net/socket.c:1017 ____sys_recvmsg\u002B0x2db/0x310 net/socket.c:2718 ___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: 0x00 -\u003E 0x01",
  "published": "2023-06-21T19:11:00Z",
  "severity": "important",
  "epss": 0.00239,
  "epssPercentile": 0.15108,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-headers",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.1.34-56.100",
      "release": "amzn 2023",
      "fixedVersion": "1.0-0.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.37-1",
      "fix": "DEBIAN-CVE-2023-53853",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53853",
      "released": "2025-12-09T16:17:25Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53853",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53853",
      "released": "2025-12-09T16:17:25Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53853",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53853",
      "released": "2025-12-09T16:17:25Z"
    },
    {
      "platform": "linux",
      "product": "perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.34-56.100.amzn2023",
      "fix": "ALAS2023-2023-228",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-228",
      "released": "2023-06-21T19:11:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}