CVE-2022-50744
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.
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]
Leer descripción completaMostrar menos
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
Detalles técnicos trazas, registros y código del informe original
Kernel panic - not syncing: Hard LOCKUP CPU: 3 PID: 110402 Comm: cat Kdump: loaded
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.24%
- Percentil entre todas las CVEs puntuadas: 14
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
JSON original (NVD)
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{
"id": "CVE-2022-50744",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "21d65b35169112af9b6f873c8eeab972e60107c2",
"lessThan": "2cf66428a2545bb33beb9624124a2377468bb478",
"versionType": "git"
},
{
"status": "affected",
"version": "2c9b5b8326b953f2f48338a7c889e6af457d146f",
"lessThan": "cd542900ee5147028bbe603b238efcab8d720838",
"versionType": "git"
},
{
"status": "affected",
"version": "bd269188ea94e40ab002cad7b0df8f12b8f0de54",
"lessThan": "39761417ea7b654217d6d9085afbf7c87ba3675d",
"versionType": "git"
},
{
"status": "affected",
"version": "bd269188ea94e40ab002cad7b0df8f12b8f0de54",
"lessThan": "c44e50f4a0ec00c2298f31f91bc2c3e9bbd81c7e",
"versionType": "git"
},
{
"status": "affected",
"version": "147d397e08a406f5997f8a1c7f747fe546bf8395",
"versionType": "git"
},
{
"status": "affected",
"version": "5.15.78",
"lessThan": "5.15.86",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.0.3",
"lessThan": "6.0.16",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.19.17",
"lessThan": "5.20",
"versionType": "semver"
}
],
"programFiles": [
"drivers/scsi/lpfc/lpfc_sli.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.86",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.0.16",
"versionType": "semver",
"lessThanOrEqual": "6.0.*"
},
{
"status": "unaffected",
"version": "6.1.2",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/scsi/lpfc/lpfc_sli.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-12-24T13:16:01.120",
"references": [
{
"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",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Deferred",
"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"
}
],
"lastModified": "2026-06-17T05:24:06.270",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}