FKIE_CVE-2022-50744

Vulnerability from fkie_nvd - Published: 2025-12-24 13:16 - Updated: 2026-06-17 05:24
Severity
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2cf66428a2545bb33beb9624124a2377468bb478
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39761417ea7b654217d6d9085afbf7c87ba3675d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c44e50f4a0ec00c2298f31f91bc2c3e9bbd81c7e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd542900ee5147028bbe603b238efcab8d720838
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_sli.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2cf66428a2545bb33beb9624124a2377468bb478",
              "status": "affected",
              "version": "21d65b35169112af9b6f873c8eeab972e60107c2",
              "versionType": "git"
            },
            {
              "lessThan": "cd542900ee5147028bbe603b238efcab8d720838",
              "status": "affected",
              "version": "2c9b5b8326b953f2f48338a7c889e6af457d146f",
              "versionType": "git"
            },
            {
              "lessThan": "39761417ea7b654217d6d9085afbf7c87ba3675d",
              "status": "affected",
              "version": "bd269188ea94e40ab002cad7b0df8f12b8f0de54",
              "versionType": "git"
            },
            {
              "lessThan": "c44e50f4a0ec00c2298f31f91bc2c3e9bbd81c7e",
              "status": "affected",
              "version": "bd269188ea94e40ab002cad7b0df8f12b8f0de54",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "147d397e08a406f5997f8a1c7f747fe546bf8395",
              "versionType": "git"
            },
            {
              "lessThan": "5.15.86",
              "status": "affected",
              "version": "5.15.78",
              "versionType": "semver"
            },
            {
              "lessThan": "6.0.16",
              "status": "affected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThan": "5.20",
              "status": "affected",
              "version": "5.19.17",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/scsi/lpfc/lpfc_sli.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "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\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"
    }
  ],
  "id": "CVE-2022-50744",
  "lastModified": "2026-06-17T05:24:06.270",
  "metrics": {},
  "published": "2025-12-24T13:16:01.120",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2cf66428a2545bb33beb9624124a2377468bb478"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/39761417ea7b654217d6d9085afbf7c87ba3675d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c44e50f4a0ec00c2298f31f91bc2c3e9bbd81c7e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cd542900ee5147028bbe603b238efcab8d720838"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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