{
  "cveId": "CVE-2023-53627",
  "url": "https://patchblox.com/security/cve/CVE-2023-53627",
  "summary": "CVE-2023-53627 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53627, released October 7, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  scsi: hisi_sas: Grab sas_dev lock when traversin...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  scsi: hisi_sas: Grab sas_dev lock when traversing the members of sas_dev.list  When freeing slots in function slot_complete_v3_hw(), it is possible that sas_dev.list is being traversed elsewhere, and it may trigger a NULL pointer exception, such as follows:  ==\u003Ecq thread                    ==\u003Escsi_eh_6                                  ==\u003Escsi_error_handler() \t\t\t\t  ==\u003Esas_eh_handle_sas_errors() \t\t\t\t    ==\u003Esas_scsi_find_task() \t\t\t\t      ==\u003Elldd_abort_task() ==\u003Eslot_complete_v3_hw()              ==\u003Ehisi_sas_abort_task()   ==\u003Ehisi_sas_slot_task_free()\t        ==\u003Edereg_device_v3_hw()     ==\u003Elist_del_init()        \t\t  ==\u003Elist_for_each_entry_safe()  [ 7165.434918] sas: Enter sas_scsi_recover_host busy: 32 failed: 32 [ 7165.434926] sas: trying to find task 0x00000000769b5ba5 [ 7165.434927] sas: sas_scsi_find_task: aborting task 0x00000000769b5ba5 [ 7165.434940] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(00000000769b5ba5) aborted [ 7165.434964] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(00000000c9f7aa07) ignored [ 7165.434965] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(00000000e2a1cf01) ignored [ 7165.434968] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 7165.434972] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(0000000022d52d93) ignored [ 7165.434975] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(0000000066a7516c) ignored [ 7165.434976] Mem abort info: [ 7165.434982]   ESR = 0x96000004 [ 7165.434991]   Exception class = DABT (current EL), IL = 32 bits [ 7165.434992]   SET = 0, FnV = 0 [ 7165.434993]   EA = 0, S1PTW = 0 [ 7165.434994] Data abort info: [ 7165.434994]   ISV = 0, ISS = 0x00000004 [ 7165.434995]   CM = 0, WnR = 0 [ 7165.434997] user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000f29543f2 [ 7165.434998] [0000000000000000] pgd=0000000000000000 [ 7165.435003] Internal error: Oops: 96000004 [#1] SMP [ 7165.439863] Process scsi_eh_6 (pid: 4109, stack limit = 0x00000000c43818d5) [ 7165.468862] pstate: 00c00009 (nzcv daif \u002BPAN \u002BUAO) [ 7165.473637] pc : dereg_device_v3_hw\u002B0x68/0xa8 [hisi_sas_v3_hw] [ 7165.479443] lr : dereg_device_v3_hw\u002B0x2c/0xa8 [hisi_sas_v3_hw] [ 7165.485247] sp : ffff00001d623bc0 [ 7165.488546] x29: ffff00001d623bc0 x28: ffffa027d03b9508 [ 7165.493835] x27: ffff80278ed50af0 x26: ffffa027dd31e0a8 [ 7165.499123] x25: ffffa027d9b27f88 x24: ffffa027d9b209f8 [ 7165.504411] x23: ffffa027c45b0d60 x22: ffff80278ec07c00 [ 7165.509700] x21: 0000000000000008 x20: ffffa027d9b209f8 [ 7165.514988] x19: ffffa027d9b27f88 x18: ffffffffffffffff [ 7165.520276] x17: 0000000000000000 x16: 0000000000000000 [ 7165.525564] x15: ffff0000091d9708 x14: ffff0000093b7dc8 [ 7165.530852] x13: ffff0000093b7a23 x12: 6e7265746e692067 [ 7165.536140] x11: 0000000000000000 x10: 0000000000000bb0 [ 7165.541429] x9 : ffff00001d6238f0 x8 : ffffa027d877af00 [ 7165.546718] x7 : ffffa027d6329600 x6 : ffff7e809f58ca00 [ 7165.552006] x5 : 0000000000001f8a x4 : 000000000000088e [ 7165.557295] x3 : ffffa027d9b27fa8 x2 : 0000000000000000 [ 7165.562583] x1 : 0000000000000000 x0 : 000000003000188e [ 7165.567872] Call trace: [ 7165.570309]  dereg_device_v3_hw\u002B0x68/0xa8 [hisi_sas_v3_hw] [ 7165.575775]  hisi_sas_abort_task\u002B0x248/0x358 [hisi_sas_main] [ 7165.581415]  sas_eh_handle_sas_errors\u002B0x258/0x8e0 [libsas] [ 7165.586876]  sas_scsi_recover_host\u002B0x134/0x458 [libsas] [ 7165.592082]  scsi_error_handler\u002B0xb4/0x488 [ 7165.596163]  kthread\u002B0x134/0x138 [ 7165.599380]  ret_from_fork\u002B0x10/0x18 [ 7165.602940] Code: d5033e9f b9000040 aa0103e2 eb03003f (f9400021) [ 7165.609004] kernel fault(0x1) notification starting on CPU 75 [ 7165.700728] ---[ end trace fc042cbbea224efc ]--- [ 7165.705326] Kernel panic - not syncing: Fatal exception  To fix the issue, grab sas_dev lock when traversing the members of sas_dev.list in dereg_device_v3_hw() and hisi_sas_release_tasks() to avoid concurrency of adding and deleting member. When  ---truncated---",
  "published": "2025-10-07T16:15:45Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00216,
  "epssPercentile": 0.12182,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.190-1",
      "fix": "DEBIAN-CVE-2023-53627",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53627",
      "released": "2025-10-07T16:15:45Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53627",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53627",
      "released": "2025-10-07T16:15:45Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.7-1",
      "fix": "DEBIAN-CVE-2023-53627",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53627",
      "released": "2025-10-07T16:15:45Z"
    }
  ],
  "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"
  }
}