{
  "cveId": "CVE-2023-54218",
  "url": "https://patchblox.com/security/cve/CVE-2023-54218",
  "summary": "CVE-2023-54218 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:  net: Fix load-tearing on sk-\u003Esk_stamp in sock_re...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: Fix load-tearing on sk-\u003Esk_stamp in sock_recv_cmsgs().  KCSAN found a data race in sock_recv_cmsgs() where the read access to sk-\u003Esk_stamp needs READ_ONCE().  BUG: KCSAN: data-race in packet_recvmsg / packet_recvmsg  write (marked) to 0xffff88803c81f258 of 8 bytes by task 19171 on cpu 0:  sock_write_timestamp include/net/sock.h:2670 [inline]  sock_recv_cmsgs include/net/sock.h:2722 [inline]  packet_recvmsg\u002B0xb97/0xd00 net/packet/af_packet.c:3489  sock_recvmsg_nosec net/socket.c:1019 [inline]  sock_recvmsg\u002B0x11a/0x130 net/socket.c:1040  sock_read_iter\u002B0x176/0x220 net/socket.c:1118  call_read_iter include/linux/fs.h:1845 [inline]  new_sync_read fs/read_write.c:389 [inline]  vfs_read\u002B0x5e0/0x630 fs/read_write.c:470  ksys_read\u002B0x163/0x1a0 fs/read_write.c:613  __do_sys_read fs/read_write.c:623 [inline]  __se_sys_read fs/read_write.c:621 [inline]  __x64_sys_read\u002B0x41/0x50 fs/read_write.c:621  do_syscall_x64 arch/x86/entry/common.c:50 [inline]  do_syscall_64\u002B0x3b/0x90 arch/x86/entry/common.c:80  entry_SYSCALL_64_after_hwframe\u002B0x72/0xdc  read to 0xffff88803c81f258 of 8 bytes by task 19183 on cpu 1:  sock_recv_cmsgs include/net/sock.h:2721 [inline]  packet_recvmsg\u002B0xb64/0xd00 net/packet/af_packet.c:3489  sock_recvmsg_nosec net/socket.c:1019 [inline]  sock_recvmsg\u002B0x11a/0x130 net/socket.c:1040  sock_read_iter\u002B0x176/0x220 net/socket.c:1118  call_read_iter include/linux/fs.h:1845 [inline]  new_sync_read fs/read_write.c:389 [inline]  vfs_read\u002B0x5e0/0x630 fs/read_write.c:470  ksys_read\u002B0x163/0x1a0 fs/read_write.c:613  __do_sys_read fs/read_write.c:623 [inline]  __se_sys_read fs/read_write.c:621 [inline]  __x64_sys_read\u002B0x41/0x50 fs/read_write.c:621  do_syscall_x64 arch/x86/entry/common.c:50 [inline]  do_syscall_64\u002B0x3b/0x90 arch/x86/entry/common.c:80  entry_SYSCALL_64_after_hwframe\u002B0x72/0xdc  value changed: 0xffffffffc4653600 -\u003E 0x0000000000000000  Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 19183 Comm: syz-executor.5 Not tainted 6.3.0-rc7-02330-gca6270c12e20 #2 Hardware name: QEMU Standard PC (i440FX \u002B PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014",
  "published": "2023-06-21T19:11:00Z",
  "severity": "important",
  "epss": 0.0021,
  "epssPercentile": 0.11239,
  "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-2023-54218",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54218",
      "released": "2025-12-30T13:16:10Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-54218",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54218",
      "released": "2025-12-30T13:16:10Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-54218",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-54218",
      "released": "2025-12-30T13:16:10Z"
    },
    {
      "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": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}