{
  "cveId": "CVE-2023-53587",
  "url": "https://patchblox.com/security/cve/CVE-2023-53587",
  "summary": "CVE-2023-53587 is fixed in 20 products on 1 platform, first by ALAS2023-2023-184, released May 25, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ring-buffer: Sync IRQ works before buffer destru...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ring-buffer: Sync IRQ works before buffer destruction  If something was written to the buffer just before destruction, it may be possible (maybe not in a real system, but it did happen in ARCH=um with time-travel) to destroy the ringbuffer before the IRQ work ran, leading this KASAN report (or a crash without KASAN):      BUG: KASAN: slab-use-after-free in irq_work_run_list\u002B0x11a/0x13a     Read of size 8 at addr 000000006d640a48 by task swapper/0      CPU: 0 PID: 0 Comm: swapper Tainted: G        W  O       6.3.0-rc1 #7     Stack:      60c4f20f 0c203d48 41b58ab3 60f224fc      600477fa 60f35687 60c4f20f 601273dd      00000008 6101eb00 6101eab0 615be548     Call Trace:      [\u003C60047a58\u003E] show_stack\u002B0x25e/0x282      [\u003C60c609e0\u003E] dump_stack_lvl\u002B0x96/0xfd      [\u003C60c50d4c\u003E] print_report\u002B0x1a7/0x5a8      [\u003C603078d3\u003E] kasan_report\u002B0xc1/0xe9      [\u003C60308950\u003E] __asan_report_load8_noabort\u002B0x1b/0x1d      [\u003C60232844\u003E] irq_work_run_list\u002B0x11a/0x13a      [\u003C602328b4\u003E] irq_work_tick\u002B0x24/0x34      [\u003C6017f9dc\u003E] update_process_times\u002B0x162/0x196      [\u003C6019f335\u003E] tick_sched_handle\u002B0x1a4/0x1c3      [\u003C6019fd9e\u003E] tick_sched_timer\u002B0x79/0x10c      [\u003C601812b9\u003E] __hrtimer_run_queues.constprop.0\u002B0x425/0x695      [\u003C60182913\u003E] hrtimer_interrupt\u002B0x16c/0x2c4      [\u003C600486a3\u003E] um_timer\u002B0x164/0x183      [...]      Allocated by task 411:      save_stack_trace\u002B0x99/0xb5      stack_trace_save\u002B0x81/0x9b      kasan_save_stack\u002B0x2d/0x54      kasan_set_track\u002B0x34/0x3e      kasan_save_alloc_info\u002B0x25/0x28      ____kasan_kmalloc\u002B0x8b/0x97      __kasan_kmalloc\u002B0x10/0x12      __kmalloc\u002B0xb2/0xe8      load_elf_phdrs\u002B0xee/0x182      [...]      The buggy address belongs to the object at 000000006d640800      which belongs to the cache kmalloc-1k of size 1024     The buggy address is located 584 bytes inside of      freed 1024-byte region [000000006d640800, 000000006d640c00)  Add the appropriate irq_work_sync() so the work finishes before the buffers are destroyed.  Prior to the commit in the Fixes tag below, there was only a single global IRQ work, so this issue didn\u0027t exist.",
  "published": "2023-05-25T17:41:00Z",
  "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": 0.00166,
  "epssPercentile": 0.05948,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-headers",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.1.29-47.49",
      "release": "amzn 2023",
      "fixedVersion": "1.0-0.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.37-1",
      "fix": "DEBIAN-CVE-2023-53587",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53587",
      "released": "2025-10-04T16:15:55Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53587",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53587",
      "released": "2025-10-04T16:15:55Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53587",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53587",
      "released": "2025-10-04T16:15:55Z"
    },
    {
      "platform": "linux",
      "product": "perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.29-47.49.amzn2023",
      "fix": "ALAS2023-2023-184",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-184",
      "released": "2023-05-25T17:41:00Z"
    }
  ],
  "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"
  }
}