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CVE-2022-50744 (GCVE-0-2022-50744)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:05 – Updated: 2026-05-23 15:25
VLAI
Title
scsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs During I/O and simultaneous cat of /sys/kernel/debug/lpfc/fnX/rx_monitor, a hard lockup similar to the call trace below may occur. The spin_lock_bh in lpfc_rx_monitor_report is not protecting from timer interrupts as expected, so change the strength of the spin lock to _irq. Kernel panic - not syncing: Hard LOCKUP CPU: 3 PID: 110402 Comm: cat Kdump: loaded exception RIP: native_queued_spin_lock_slowpath+91 [IRQ stack] native_queued_spin_lock_slowpath at ffffffffb814e30b _raw_spin_lock at ffffffffb89a667a lpfc_rx_monitor_record at ffffffffc0a73a36 [lpfc] lpfc_cmf_timer at ffffffffc0abbc67 [lpfc] __hrtimer_run_queues at ffffffffb8184250 hrtimer_interrupt at ffffffffb8184ab0 smp_apic_timer_interrupt at ffffffffb8a026ba apic_timer_interrupt at ffffffffb8a01c4f [End of IRQ stack] apic_timer_interrupt at ffffffffb8a01c4f lpfc_rx_monitor_report at ffffffffc0a73c80 [lpfc] lpfc_rx_monitor_read at ffffffffc0addde1 [lpfc] full_proxy_read at ffffffffb83e7fc3 vfs_read at ffffffffb833fe71 ksys_read at ffffffffb83402af do_syscall_64 at ffffffffb800430b entry_SYSCALL_64_after_hwframe at ffffffffb8a000ad
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 21d65b35169112af9b6f873c8eeab972e60107c2 , < 2cf66428a2545bb33beb9624124a2377468bb478 (git)
Affected: 2c9b5b8326b953f2f48338a7c889e6af457d146f , < cd542900ee5147028bbe603b238efcab8d720838 (git)
Affected: bd269188ea94e40ab002cad7b0df8f12b8f0de54 , < 39761417ea7b654217d6d9085afbf7c87ba3675d (git)
Affected: bd269188ea94e40ab002cad7b0df8f12b8f0de54 , < c44e50f4a0ec00c2298f31f91bc2c3e9bbd81c7e (git)
Affected: 147d397e08a406f5997f8a1c7f747fe546bf8395 (git)
Affected: 5.15.78 , < 5.15.86 (semver)
Affected: 6.0.3 , < 6.0.16 (semver)
Affected: 5.19.17 , < 5.20 (semver)
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Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_sli.c"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs\n\nDuring I/O and simultaneous cat of /sys/kernel/debug/lpfc/fnX/rx_monitor, a\nhard lockup similar to the call trace below may occur.\n\nThe spin_lock_bh in lpfc_rx_monitor_report is not protecting from timer\ninterrupts as expected, so change the strength of the spin lock to _irq.\n\nKernel panic - not syncing: Hard LOCKUP\nCPU: 3 PID: 110402 Comm: cat Kdump: loaded\n\nexception RIP: native_queued_spin_lock_slowpath+91\n\n[IRQ stack]\n native_queued_spin_lock_slowpath at ffffffffb814e30b\n _raw_spin_lock at ffffffffb89a667a\n lpfc_rx_monitor_record at ffffffffc0a73a36 [lpfc]\n lpfc_cmf_timer at ffffffffc0abbc67 [lpfc]\n __hrtimer_run_queues at ffffffffb8184250\n hrtimer_interrupt at ffffffffb8184ab0\n smp_apic_timer_interrupt at ffffffffb8a026ba\n apic_timer_interrupt at ffffffffb8a01c4f\n[End of IRQ stack]\n\n apic_timer_interrupt at ffffffffb8a01c4f\n lpfc_rx_monitor_report at ffffffffc0a73c80 [lpfc]\n lpfc_rx_monitor_read at ffffffffc0addde1 [lpfc]\n full_proxy_read at ffffffffb83e7fc3\n vfs_read at ffffffffb833fe71\n ksys_read at ffffffffb83402af\n do_syscall_64 at ffffffffb800430b\n entry_SYSCALL_64_after_hwframe at ffffffffb8a000ad"
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      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:25:06.550Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2cf66428a2545bb33beb9624124a2377468bb478"
        },
        {
          "url": "https://git.kernel.org/stable/c/cd542900ee5147028bbe603b238efcab8d720838"
        },
        {
          "url": "https://git.kernel.org/stable/c/39761417ea7b654217d6d9085afbf7c87ba3675d"
        },
        {
          "url": "https://git.kernel.org/stable/c/c44e50f4a0ec00c2298f31f91bc2c3e9bbd81c7e"
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      "title": "scsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50744",
    "datePublished": "2025-12-24T13:05:41.138Z",
    "dateReserved": "2025-12-24T13:02:21.543Z",
    "dateUpdated": "2026-05-23T15:25:06.550Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
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      "date": "2026-09-16",
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      "percentile": "0.15383"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:59:54+00:00",
      "cve": "CVE-2022-50744",
      "id": "CVE-2022-50744",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "321",
      "product_status:known_affected": "80",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Hard lockup in lpfc driver leads to Denial of Service",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50744.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-29T02:19:06Z",
      "cve": "CVE-2022-50744",
      "id": "CVE-2022-50744",
      "initial_release_date": "2025-12-25T01:04:22Z",
      "product_status:known_affected": "354",
      "product_status:known_not_affected": "367",
      "product_status:recommended": "270",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50744",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50744.json",
      "version": "32"
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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