CVE-2023-53730 (GCVE-0-2023-53730)

Vulnerability from cvelistv5 – Published: 2025-10-22 13:23 – Updated: 2026-05-11 19:50
VLAI
Title
blk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost
Summary
In the Linux kernel, the following vulnerability has been resolved: blk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost adjust_inuse_and_calc_cost() use spin_lock_irq() and IRQ will be enabled when unlock. DEADLOCK might happen if we have held other locks and disabled IRQ before invoking it. Fix it by using spin_lock_irqsave() instead, which can keep IRQ state consistent with before when unlock. ================================ WARNING: inconsistent lock state 5.10.0-02758-g8e5f91fd772f #26 Not tainted -------------------------------- inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage. kworker/2:3/388 [HC0[0]:SC0[0]:HE0:SE1] takes: ffff888118c00c28 (&bfqd->lock){?.-.}-{2:2}, at: spin_lock_irq ffff888118c00c28 (&bfqd->lock){?.-.}-{2:2}, at: bfq_bio_merge+0x141/0x390 {IN-HARDIRQ-W} state was registered at: __lock_acquire+0x3d7/0x1070 lock_acquire+0x197/0x4a0 __raw_spin_lock_irqsave _raw_spin_lock_irqsave+0x3b/0x60 bfq_idle_slice_timer_body bfq_idle_slice_timer+0x53/0x1d0 __run_hrtimer+0x477/0xa70 __hrtimer_run_queues+0x1c6/0x2d0 hrtimer_interrupt+0x302/0x9e0 local_apic_timer_interrupt __sysvec_apic_timer_interrupt+0xfd/0x420 run_sysvec_on_irqstack_cond sysvec_apic_timer_interrupt+0x46/0xa0 asm_sysvec_apic_timer_interrupt+0x12/0x20 irq event stamp: 837522 hardirqs last enabled at (837521): [<ffffffff84b9419d>] __raw_spin_unlock_irqrestore hardirqs last enabled at (837521): [<ffffffff84b9419d>] _raw_spin_unlock_irqrestore+0x3d/0x40 hardirqs last disabled at (837522): [<ffffffff84b93fa3>] __raw_spin_lock_irq hardirqs last disabled at (837522): [<ffffffff84b93fa3>] _raw_spin_lock_irq+0x43/0x50 softirqs last enabled at (835852): [<ffffffff84e00558>] __do_softirq+0x558/0x8ec softirqs last disabled at (835845): [<ffffffff84c010ff>] asm_call_irq_on_stack+0xf/0x20 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&bfqd->lock); <Interrupt> lock(&bfqd->lock); *** DEADLOCK *** 3 locks held by kworker/2:3/388: #0: ffff888107af0f38 ((wq_completion)kthrotld){+.+.}-{0:0}, at: process_one_work+0x742/0x13f0 #1: ffff8881176bfdd8 ((work_completion)(&td->dispatch_work)){+.+.}-{0:0}, at: process_one_work+0x777/0x13f0 #2: ffff888118c00c28 (&bfqd->lock){?.-.}-{2:2}, at: spin_lock_irq #2: ffff888118c00c28 (&bfqd->lock){?.-.}-{2:2}, at: bfq_bio_merge+0x141/0x390 stack backtrace: CPU: 2 PID: 388 Comm: kworker/2:3 Not tainted 5.10.0-02758-g8e5f91fd772f #26 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Workqueue: kthrotld blk_throtl_dispatch_work_fn Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 print_usage_bug valid_state mark_lock_irq.cold+0x32/0x3a mark_lock+0x693/0xbc0 mark_held_locks+0x9e/0xe0 __trace_hardirqs_on_caller lockdep_hardirqs_on_prepare.part.0+0x151/0x360 trace_hardirqs_on+0x5b/0x180 __raw_spin_unlock_irq _raw_spin_unlock_irq+0x24/0x40 spin_unlock_irq adjust_inuse_and_calc_cost+0x4fb/0x970 ioc_rqos_merge+0x277/0x740 __rq_qos_merge+0x62/0xb0 rq_qos_merge bio_attempt_back_merge+0x12c/0x4a0 blk_mq_sched_try_merge+0x1b6/0x4d0 bfq_bio_merge+0x24a/0x390 __blk_mq_sched_bio_merge+0xa6/0x460 blk_mq_sched_bio_merge blk_mq_submit_bio+0x2e7/0x1ee0 __submit_bio_noacct_mq+0x175/0x3b0 submit_bio_noacct+0x1fb/0x270 blk_throtl_dispatch_work_fn+0x1ef/0x2b0 process_one_work+0x83e/0x13f0 process_scheduled_works worker_thread+0x7e3/0xd80 kthread+0x353/0x470 ret_from_fork+0x1f/0x30
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6971 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4 , < 8563b58a4360e648ce18f0e98a75a4be51667431 (git)
Affected: b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4 , < eb120c0aff5ceab9c9c46b87f302465bbf2bbaed (git)
Affected: b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4 , < 8ceeb3fc86a83700bb1585c189006080a47e8506 (git)
Affected: b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4 , < 9279a1b74ad98039d5d44d26b9e7a9cfe655b6d3 (git)
Affected: b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4 , < 3376c4fe2db4aea2dc721a27a999c41fdb45b54f (git)
Affected: b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4 , < 8d211554679d0b23702bd32ba04aeac0c1c4f660 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.188 , ≤ 5.10.* (semver)
Unaffected: 5.15.121 , ≤ 5.15.* (semver)
Unaffected: 6.1.39 , ≤ 6.1.* (semver)
Unaffected: 6.3.13 , ≤ 6.3.* (semver)
Unaffected: 6.4.4 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/blk-iocost.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8563b58a4360e648ce18f0e98a75a4be51667431",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "eb120c0aff5ceab9c9c46b87f302465bbf2bbaed",
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              "versionType": "git"
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              "versionType": "git"
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              "status": "affected",
              "version": "b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4",
              "versionType": "git"
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              "lessThan": "8d211554679d0b23702bd32ba04aeac0c1c4f660",
              "status": "affected",
              "version": "b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "block/blk-iocost.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.3.*",
              "status": "unaffected",
              "version": "6.3.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.188",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.121",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.39",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3.13",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.4",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost\n\nadjust_inuse_and_calc_cost() use spin_lock_irq() and IRQ will be enabled\nwhen unlock. DEADLOCK might happen if we have held other locks and disabled\nIRQ before invoking it.\n\nFix it by using spin_lock_irqsave() instead, which can keep IRQ state\nconsistent with before when unlock.\n\n  ================================\n  WARNING: inconsistent lock state\n  5.10.0-02758-g8e5f91fd772f #26 Not tainted\n  --------------------------------\n  inconsistent {IN-HARDIRQ-W} -\u003e {HARDIRQ-ON-W} usage.\n  kworker/2:3/388 [HC0[0]:SC0[0]:HE0:SE1] takes:\n  ffff888118c00c28 (\u0026bfqd-\u003elock){?.-.}-{2:2}, at: spin_lock_irq\n  ffff888118c00c28 (\u0026bfqd-\u003elock){?.-.}-{2:2}, at: bfq_bio_merge+0x141/0x390\n  {IN-HARDIRQ-W} state was registered at:\n    __lock_acquire+0x3d7/0x1070\n    lock_acquire+0x197/0x4a0\n    __raw_spin_lock_irqsave\n    _raw_spin_lock_irqsave+0x3b/0x60\n    bfq_idle_slice_timer_body\n    bfq_idle_slice_timer+0x53/0x1d0\n    __run_hrtimer+0x477/0xa70\n    __hrtimer_run_queues+0x1c6/0x2d0\n    hrtimer_interrupt+0x302/0x9e0\n    local_apic_timer_interrupt\n    __sysvec_apic_timer_interrupt+0xfd/0x420\n    run_sysvec_on_irqstack_cond\n    sysvec_apic_timer_interrupt+0x46/0xa0\n    asm_sysvec_apic_timer_interrupt+0x12/0x20\n  irq event stamp: 837522\n  hardirqs last  enabled at (837521): [\u003cffffffff84b9419d\u003e] __raw_spin_unlock_irqrestore\n  hardirqs last  enabled at (837521): [\u003cffffffff84b9419d\u003e] _raw_spin_unlock_irqrestore+0x3d/0x40\n  hardirqs last disabled at (837522): [\u003cffffffff84b93fa3\u003e] __raw_spin_lock_irq\n  hardirqs last disabled at (837522): [\u003cffffffff84b93fa3\u003e] _raw_spin_lock_irq+0x43/0x50\n  softirqs last  enabled at (835852): [\u003cffffffff84e00558\u003e] __do_softirq+0x558/0x8ec\n  softirqs last disabled at (835845): [\u003cffffffff84c010ff\u003e] asm_call_irq_on_stack+0xf/0x20\n\n  other info that might help us debug this:\n   Possible unsafe locking scenario:\n\n         CPU0\n         ----\n    lock(\u0026bfqd-\u003elock);\n    \u003cInterrupt\u003e\n      lock(\u0026bfqd-\u003elock);\n\n   *** DEADLOCK ***\n\n  3 locks held by kworker/2:3/388:\n   #0: ffff888107af0f38 ((wq_completion)kthrotld){+.+.}-{0:0}, at: process_one_work+0x742/0x13f0\n   #1: ffff8881176bfdd8 ((work_completion)(\u0026td-\u003edispatch_work)){+.+.}-{0:0}, at: process_one_work+0x777/0x13f0\n   #2: ffff888118c00c28 (\u0026bfqd-\u003elock){?.-.}-{2:2}, at: spin_lock_irq\n   #2: ffff888118c00c28 (\u0026bfqd-\u003elock){?.-.}-{2:2}, at: bfq_bio_merge+0x141/0x390\n\n  stack backtrace:\n  CPU: 2 PID: 388 Comm: kworker/2:3 Not tainted 5.10.0-02758-g8e5f91fd772f #26\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n  Workqueue: kthrotld blk_throtl_dispatch_work_fn\n  Call Trace:\n   __dump_stack lib/dump_stack.c:77 [inline]\n   dump_stack+0x107/0x167\n   print_usage_bug\n   valid_state\n   mark_lock_irq.cold+0x32/0x3a\n   mark_lock+0x693/0xbc0\n   mark_held_locks+0x9e/0xe0\n   __trace_hardirqs_on_caller\n   lockdep_hardirqs_on_prepare.part.0+0x151/0x360\n   trace_hardirqs_on+0x5b/0x180\n   __raw_spin_unlock_irq\n   _raw_spin_unlock_irq+0x24/0x40\n   spin_unlock_irq\n   adjust_inuse_and_calc_cost+0x4fb/0x970\n   ioc_rqos_merge+0x277/0x740\n   __rq_qos_merge+0x62/0xb0\n   rq_qos_merge\n   bio_attempt_back_merge+0x12c/0x4a0\n   blk_mq_sched_try_merge+0x1b6/0x4d0\n   bfq_bio_merge+0x24a/0x390\n   __blk_mq_sched_bio_merge+0xa6/0x460\n   blk_mq_sched_bio_merge\n   blk_mq_submit_bio+0x2e7/0x1ee0\n   __submit_bio_noacct_mq+0x175/0x3b0\n   submit_bio_noacct+0x1fb/0x270\n   blk_throtl_dispatch_work_fn+0x1ef/0x2b0\n   process_one_work+0x83e/0x13f0\n   process_scheduled_works\n   worker_thread+0x7e3/0xd80\n   kthread+0x353/0x470\n   ret_from_fork+0x1f/0x30"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:50:44.742Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8563b58a4360e648ce18f0e98a75a4be51667431"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb120c0aff5ceab9c9c46b87f302465bbf2bbaed"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ceeb3fc86a83700bb1585c189006080a47e8506"
        },
        {
          "url": "https://git.kernel.org/stable/c/9279a1b74ad98039d5d44d26b9e7a9cfe655b6d3"
        },
        {
          "url": "https://git.kernel.org/stable/c/3376c4fe2db4aea2dc721a27a999c41fdb45b54f"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d211554679d0b23702bd32ba04aeac0c1c4f660"
        }
      ],
      "title": "blk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53730",
    "datePublished": "2025-10-22T13:23:58.419Z",
    "dateReserved": "2025-10-22T13:21:37.349Z",
    "dateUpdated": "2026-05-11T19:50:44.742Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53730",
      "date": "2026-11-01",
      "epss": "0.00205",
      "percentile": "0.10463"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "block/blk-iocost.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
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                    "status": "affected",
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                    "versionType": "git"
                  },
                  {
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                    "status": "affected",
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                    "versionType": "git"
                  },
                  {
                    "lessThan": "8ceeb3fc86a83700bb1585c189006080a47e8506",
                    "status": "affected",
                    "version": "b0853ab4a238c54b8f97ca7dde1ae156e2bbd5e4",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9279a1b74ad98039d5d44d26b9e7a9cfe655b6d3",
                    "status": "affected",
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                    "versionType": "git"
                  },
                  {
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                    "versionType": "git"
                  },
                  {
                    "lessThan": "8d211554679d0b23702bd32ba04aeac0c1c4f660",
                    "status": "affected",
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                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "block/blk-iocost.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.10"
                  },
                  {
                    "lessThan": "5.10",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.188",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.121",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.39",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.3.*",
                    "status": "unaffected",
                    "version": "6.3.13",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.4.*",
                    "status": "unaffected",
                    "version": "6.4.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.5",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost\n\nadjust_inuse_and_calc_cost() use spin_lock_irq() and IRQ will be enabled\nwhen unlock. DEADLOCK might happen if we have held other locks and disabled\nIRQ before invoking it.\n\nFix it by using spin_lock_irqsave() instead, which can keep IRQ state\nconsistent with before when unlock.\n\n  ================================\n  WARNING: inconsistent lock state\n  5.10.0-02758-g8e5f91fd772f #26 Not tainted\n  --------------------------------\n  inconsistent {IN-HARDIRQ-W} -\u003e {HARDIRQ-ON-W} usage.\n  kworker/2:3/388 [HC0[0]:SC0[0]:HE0:SE1] takes:\n  ffff888118c00c28 (\u0026bfqd-\u003elock){?.-.}-{2:2}, at: spin_lock_irq\n  ffff888118c00c28 (\u0026bfqd-\u003elock){?.-.}-{2:2}, at: bfq_bio_merge+0x141/0x390\n  {IN-HARDIRQ-W} state was registered at:\n    __lock_acquire+0x3d7/0x1070\n    lock_acquire+0x197/0x4a0\n    __raw_spin_lock_irqsave\n    _raw_spin_lock_irqsave+0x3b/0x60\n    bfq_idle_slice_timer_body\n    bfq_idle_slice_timer+0x53/0x1d0\n    __run_hrtimer+0x477/0xa70\n    __hrtimer_run_queues+0x1c6/0x2d0\n    hrtimer_interrupt+0x302/0x9e0\n    local_apic_timer_interrupt\n    __sysvec_apic_timer_interrupt+0xfd/0x420\n    run_sysvec_on_irqstack_cond\n    sysvec_apic_timer_interrupt+0x46/0xa0\n    asm_sysvec_apic_timer_interrupt+0x12/0x20\n  irq event stamp: 837522\n  hardirqs last  enabled at (837521): [\u003cffffffff84b9419d\u003e] __raw_spin_unlock_irqrestore\n  hardirqs last  enabled at (837521): [\u003cffffffff84b9419d\u003e] _raw_spin_unlock_irqrestore+0x3d/0x40\n  hardirqs last disabled at (837522): [\u003cffffffff84b93fa3\u003e] __raw_spin_lock_irq\n  hardirqs last disabled at (837522): [\u003cffffffff84b93fa3\u003e] _raw_spin_lock_irq+0x43/0x50\n  softirqs last  enabled at (835852): [\u003cffffffff84e00558\u003e] __do_softirq+0x558/0x8ec\n  softirqs last disabled at (835845): [\u003cffffffff84c010ff\u003e] asm_call_irq_on_stack+0xf/0x20\n\n  other info that might help us debug this:\n   Possible unsafe locking scenario:\n\n         CPU0\n         ----\n    lock(\u0026bfqd-\u003elock);\n    \u003cInterrupt\u003e\n      lock(\u0026bfqd-\u003elock);\n\n   *** DEADLOCK ***\n\n  3 locks held by kworker/2:3/388:\n   #0: ffff888107af0f38 ((wq_completion)kthrotld){+.+.}-{0:0}, at: process_one_work+0x742/0x13f0\n   #1: ffff8881176bfdd8 ((work_completion)(\u0026td-\u003edispatch_work)){+.+.}-{0:0}, at: process_one_work+0x777/0x13f0\n   #2: ffff888118c00c28 (\u0026bfqd-\u003elock){?.-.}-{2:2}, at: spin_lock_irq\n   #2: ffff888118c00c28 (\u0026bfqd-\u003elock){?.-.}-{2:2}, at: bfq_bio_merge+0x141/0x390\n\n  stack backtrace:\n  CPU: 2 PID: 388 Comm: kworker/2:3 Not tainted 5.10.0-02758-g8e5f91fd772f #26\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n  Workqueue: kthrotld blk_throtl_dispatch_work_fn\n  Call Trace:\n   __dump_stack lib/dump_stack.c:77 [inline]\n   dump_stack+0x107/0x167\n   print_usage_bug\n   valid_state\n   mark_lock_irq.cold+0x32/0x3a\n   mark_lock+0x693/0xbc0\n   mark_held_locks+0x9e/0xe0\n   __trace_hardirqs_on_caller\n   lockdep_hardirqs_on_prepare.part.0+0x151/0x360\n   trace_hardirqs_on+0x5b/0x180\n   __raw_spin_unlock_irq\n   _raw_spin_unlock_irq+0x24/0x40\n   spin_unlock_irq\n   adjust_inuse_and_calc_cost+0x4fb/0x970\n   ioc_rqos_merge+0x277/0x740\n   __rq_qos_merge+0x62/0xb0\n   rq_qos_merge\n   bio_attempt_back_merge+0x12c/0x4a0\n   blk_mq_sched_try_merge+0x1b6/0x4d0\n   bfq_bio_merge+0x24a/0x390\n   __blk_mq_sched_bio_merge+0xa6/0x460\n   blk_mq_sched_bio_merge\n   blk_mq_submit_bio+0x2e7/0x1ee0\n   __submit_bio_noacct_mq+0x175/0x3b0\n   submit_bio_noacct+0x1fb/0x270\n   blk_throtl_dispatch_work_fn+0x1ef/0x2b0\n   process_one_work+0x83e/0x13f0\n   process_scheduled_works\n   worker_thread+0x7e3/0xd80\n   kthread+0x353/0x470\n   ret_from_fork+0x1f/0x30"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nblk-iocost: usar spin_lock_irqsave en adjust_inuse_and_calc_cost\n\nadjust_inuse_and_calc_cost() usa spin_lock_irq() y las IRQ se habilitar\u00e1n al desbloquear. Podr\u00eda ocurrir un INTERBLOQUEO si hemos mantenido otros bloqueos y deshabilitado las IRQ antes de invocarla.\n\nSe soluciona usando spin_lock_irqsave() en su lugar, lo que puede mantener el estado de las IRQ consistente con el anterior al desbloquear.\n\n  ================================\n  ADVERTENCIA: estado de bloqueo inconsistente\n  5.10.0-02758-g8e5f91fd772f #26 No contaminado\n  --------------------------------\n  uso inconsistente {IN-HARDIRQ-W}  -\u003e  {HARDIRQ-ON-W}.\n  kworker/2:3/388 [HC0[0]:SC0[0]:HE0:SE1] toma:\n  ffff888118c00c28 (\u0026bfqd -\u003e lock){?.-.}-{2:2}, en: spin_lock_irq\n  ffff888118c00c28 (\u0026bfqd -\u003e lock){?.-.}-{2:2}, en: bfq_bio_merge+0x141/0x390\n  el estado {IN-HARDIRQ-W} fue registrado en:\n    __lock_acquire+0x3d7/0x1070\n    lock_acquire+0x197/0x4a0\n    __raw_spin_lock_irqsave\n    _raw_spin_lock_irqsave+0x3b/0x60\n    bfq_idle_slice_timer_body\n    bfq_idle_slice_timer+0x53/0x1d0\n    __run_hrtimer+0x477/0xa70\n    __hrtimer_run_queues+0x1c6/0x2d0\n    hrtimer_interrupt+0x302/0x9e0\n    local_apic_timer_interrupt\n    __sysvec_apic_timer_interrupt+0xfd/0x420\n    run_sysvec_on_irqstack_cond\n    sysvec_apic_timer_interrupt+0x46/0xa0\n    asm_sysvec_apic_timer_interrupt+0x12/0x20\n  marca de tiempo del evento irq: 837522\n  hardirqs habilitadas por \u00faltima vez en (837521): [[ffffffff84b9419d]] __raw_spin_unlock_irqrestore\n  hardirqs habilitadas por \u00faltima vez en (837521): [[ffffffff84b9419d]] _raw_spin_unlock_irqrestore+0x3d/0x40\n  hardirqs deshabilitadas por \u00faltima vez en (837522): [[ffffffff84b93fa3]] __raw_spin_lock_irq\n  hardirqs deshabilitadas por \u00faltima vez en (837522): [[ffffffff84b93fa3]] _raw_spin_lock_irq+0x43/0x50\n  softirqs habilitadas por \u00faltima vez en (835852): [[ffffffff84e00558]] __do_softirq+0x558/0x8ec\n  softirqs deshabilitadas por \u00faltima vez en (835845): [[ffffffff84c010ff]] asm_call_irq_on_stack+0xf/0x20\n\n  otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto:\n   Posible escenario de bloqueo inseguro:\n\n         CPU0\n         ----\n    lock(\u0026bfqd -\u003e lock);\n    \u003cInterrupci\u00f3n\u003e\n      lock(\u0026bfqd -\u003e lock);\n\n   * INTERBLOQUEO *\n\n  3 bloqueos mantenidos por kworker/2:3/388:\n   #0: ffff888107af0f38 ((wq_completion)kthrotld){+.+.}-{0:0}, en: process_one_work+0x742/0x13f0\n   #1: ffff8881176bfdd8 ((work_completion)(\u0026td -\u003e dispatch_work)){+.+.}-{0:0}, en: process_one_work+0x777/0x13f0\n   #2: ffff888118c00c28 (\u0026bfqd -\u003e lock){?.-.}-{2:2}, en: spin_lock_irq\n   #2: ffff888118c00c28 (\u0026bfqd -\u003e lock){?.-.}-{2:2}, en: bfq_bio_merge+0x141/0x390\n\n  rastreo de pila:\n  CPU: 2 PID: 388 Comm: kworker/2:3 No contaminado 5.10.0-02758-g8e5f91fd772f #26\n  Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n  Cola de trabajo: kthrotld blk_throtl_dispatch_work_fn\n  Traza de llamada:\n   __dump_stack lib/dump_stack.c:77 [en l\u00ednea]\n   dump_stack+0x107/0x167\n   print_usage_bug\n   valid_state\n   mark_lock_irq.cold+0x32/0x3a\n   mark_lock+0x693/0xbc0\n   mark_held_locks+0x9e/0xe0\n   __trace_hardirqs_on_caller\n   lockdep_hardirqs_on_prepare.part.0+0x151/0x360\n   trace_hardirqs_on+0x5b/0x180\n   __raw_spin_unlock_irq\n   _raw_spin_unlock_irq+0x24/0x40\n   spin_unlock_irq\n   adjust_inuse_and_calc_cost+0x4fb/0x970\n   ioc_rqos_merge+0x277/0x740\n   __rq_qos_merge+0x62/0xb0\n   rq_qos_merge\n   bio_attempt_back_merge+0x12c/0x4a0\n   blk_mq_sched_try_merge+0x1b6/0x4d0\n   bfq_bio_merge+0x24a/0x390\n   __blk_mq_sched_bio_merge+0xa6/0x460\n   blk_mq_sched_bio_merge\n   blk_mq_submit_bio+0x2e7/0x1ee0\n   __submit_bio_noacct_mq+0x175/0x3b0\n   submit_bio_noacct+0x1fb/0x270\n   blk_throtl_dispatch_work_fn+0x1ef/0x2b0\n   process_one_work+0x83e/0x13f0\n   process_scheduled_works\n   worker_thread+0x7e3/0xd80\n   kthread+0x353/0x470\n   ret_from_fork+0x1f/0x30"
          }
        ],
        "id": "CVE-2023-53730",
        "lastModified": "2026-10-28T19:10:00.193",
        "metrics": {},
        "published": "2025-10-22T14:15:48.310",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/3376c4fe2db4aea2dc721a27a999c41fdb45b54f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/8563b58a4360e648ce18f0e98a75a4be51667431"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/8ceeb3fc86a83700bb1585c189006080a47e8506"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/8d211554679d0b23702bd32ba04aeac0c1c4f660"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9279a1b74ad98039d5d44d26b9e7a9cfe655b6d3"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/eb120c0aff5ceab9c9c46b87f302465bbf2bbaed"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:29:19+00:00",
      "cve": "CVE-2023-53730",
      "id": "CVE-2023-53730",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "279",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "166",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: blk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53730.json",
      "version": "3"
    }
  }
}



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