{
  "cveId": "CVE-2021-47576",
  "url": "https://patchblox.com/security/cve/CVE-2021-47576",
  "summary": "CVE-2021-47576 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47576, released June 19, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  scsi: scsi_debug: Sanity check block descriptor...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select()  In resp_mode_select() sanity check the block descriptor len to avoid UAF.  BUG: KASAN: use-after-free in resp_mode_select\u002B0xa4c/0xb40 drivers/scsi/scsi_debug.c:2509 Read of size 1 at addr ffff888026670f50 by task scsicmd/15032  CPU: 1 PID: 15032 Comm: scsicmd Not tainted 5.15.0-01d0625 #15 Hardware name: QEMU Standard PC (i440FX \u002B PIIX, 1996), BIOS Call Trace:  \u003CTASK\u003E  dump_stack_lvl\u002B0x89/0xb5 lib/dump_stack.c:107  print_address_description.constprop.9\u002B0x28/0x160 mm/kasan/report.c:257  kasan_report.cold.14\u002B0x7d/0x117 mm/kasan/report.c:443  __asan_report_load1_noabort\u002B0x14/0x20 mm/kasan/report_generic.c:306  resp_mode_select\u002B0xa4c/0xb40 drivers/scsi/scsi_debug.c:2509  schedule_resp\u002B0x4af/0x1a10 drivers/scsi/scsi_debug.c:5483  scsi_debug_queuecommand\u002B0x8c9/0x1e70 drivers/scsi/scsi_debug.c:7537  scsi_queue_rq\u002B0x16b4/0x2d10 drivers/scsi/scsi_lib.c:1521  blk_mq_dispatch_rq_list\u002B0xb9b/0x2700 block/blk-mq.c:1640  __blk_mq_sched_dispatch_requests\u002B0x28f/0x590 block/blk-mq-sched.c:325  blk_mq_sched_dispatch_requests\u002B0x105/0x190 block/blk-mq-sched.c:358  __blk_mq_run_hw_queue\u002B0xe5/0x150 block/blk-mq.c:1762  __blk_mq_delay_run_hw_queue\u002B0x4f8/0x5c0 block/blk-mq.c:1839  blk_mq_run_hw_queue\u002B0x18d/0x350 block/blk-mq.c:1891  blk_mq_sched_insert_request\u002B0x3db/0x4e0 block/blk-mq-sched.c:474  blk_execute_rq_nowait\u002B0x16b/0x1c0 block/blk-exec.c:63  sg_common_write.isra.18\u002B0xeb3/0x2000 drivers/scsi/sg.c:837  sg_new_write.isra.19\u002B0x570/0x8c0 drivers/scsi/sg.c:775  sg_ioctl_common\u002B0x14d6/0x2710 drivers/scsi/sg.c:941  sg_ioctl\u002B0xa2/0x180 drivers/scsi/sg.c:1166  __x64_sys_ioctl\u002B0x19d/0x220 fs/ioctl.c:52  do_syscall_64\u002B0x3a/0x80 arch/x86/entry/common.c:50  entry_SYSCALL_64_after_hwframe\u002B0x44/0xae arch/x86/entry/entry_64.S:113",
  "published": "2024-06-19T15:15:52Z",
  "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": 0.00256,
  "epssPercentile": 0.17243,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47576",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47576",
      "released": "2024-06-19T15:15:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47576",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47576",
      "released": "2024-06-19T15:15:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47576",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47576",
      "released": "2024-06-19T15:15:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}