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CVE-2022-49542
published 2025-02-26

CVE-2022-49542: In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Move cfg_log_verbose check before calling lpfc_dmp_dbg() In an attempt to log…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.20%
9.6th percentile
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Move cfg_log_verbose check before calling lpfc_dmp_dbg() In an attempt to log message 0126 with LOG_TRACE_EVENT, the following hard lockup call trace hangs the system. Call Trace: _raw_spin_lock_irqsave+0x32/0x40 lpfc_dmp_dbg.part.32+0x28/0x220 [lpfc] lpfc_cmpl_els_fdisc+0x145/0x460 [lpfc] lpfc_sli_cancel_jobs+0x92/0xd0 [lpfc] lpfc_els_flush_cmd+0x43c/0x670 [lpfc] lpfc_els_flush_all_cmd+0x37/0x60 [lpfc] lpfc_sli4_async_event_proc+0x956/0x1720 [lpfc] lpfc_do_work+0x1485/0x1d70 [lpfc] kthread+0x112/0x130 ret_from_fork+0x1f/0x40 Kernel panic - not syncing: Hard LOCKUP The same CPU tries to claim the phba->port_list_lock twice. Move the cfg_log_verbose checks as part of the lpfc_printf_vlog() and lpfc_printf_log() macros before calling lpfc_dmp_dbg(). There is no need to take the phba->port_list_lock within lpfc_dmp_dbg().

Affected

12 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.18.5-1 (bookworm)linux 5.18.5-1 (bookworm)
linuxlinux——
linuxlinux>= 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb < 271725e4028559ae7974d762a8467dc9de412f2e271725e4028559ae7974d762a8467dc9de412f2e
linuxlinux>= 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb < cc6501afccec55b8b6c90584cbf71f1fefa77d1ecc6501afccec55b8b6c90584cbf71f1fefa77d1e
linuxlinux>= 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb < 09c772557a4fd9490fed1bfb133268313ea2221309c772557a4fd9490fed1bfb133268313ea22213
linuxlinux>= 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb < e294647b1aed4247fe52851f3a3b2b19ae906228e294647b1aed4247fe52851f3a3b2b19ae906228
linuxlinux_kernel< 5.15.465.15.46
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 5.16 < 5.17.145.17.14
linuxlinux_kernel>= 5.18 < 5.18.35.18.3

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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