CVE-2022-49542

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

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().

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-667

Affected software

VendorProductVersions
LinuxLinux>= 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb, < 271725e4028559ae7974d762a8467dc9de412f2e; >= 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb, < cc6501afccec55b8b6c90584cbf71f1fefa77d1e; >= 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb, < 09c772557a4fd9490fed1bfb133268313ea22213; >= 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb, < e294647b1aed4247fe52851f3a3b2b19ae906228
LinuxLinux5.12

References

Timeline

Published
Feb 26, 2025
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2022

CVE-2022-495435.5In the Linux kernel, the following vulnerability has been resolved: ath11k: fix the warning of dev_wake in mhi_pm_disable_transition() WheCVE-2022-495445.5In the Linux kernel, the following vulnerability has been resolved: ipw2x00: Fix potential NULL dereference in libipw_xmit() crypt and cryCVE-2022-495455.5In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Cancel pending work at closing a MIDI substream At clCVE-2022-495465.5In the Linux kernel, the following vulnerability has been resolved: x86/kexec: fix memory leak of elf header buffer This is reported by kmCVE-2022-495475.5In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between concurrent dio writes when low on free dataCVE-2022-495487.8In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpf_trampoline_get_progs() The cnCVE-2022-495495.5In the Linux kernel, the following vulnerability has been resolved: x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails In mceCVE-2022-49556.5Inappropriate implementation in DevTools in Google Chrome prior to 108.0.5359.71 allowed an attacker who convinced a user to install a malicCVE-2022-495505.5In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: provide block_invalidate_folio to fix memory leak The ntfs3 CVE-2022-495517.1In the Linux kernel, the following vulnerability has been resolved: usb: isp1760: Fix out-of-bounds array access Running the driver througCVE-2022-495525.5In the Linux kernel, the following vulnerability has been resolved: bpf: Fix combination of jit blinding and pointers to bpf subprogs. TheCVE-2022-495535.5In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate BOOT sectors_per_clusters When the NTFS BOOT sector
CVE-2022-49542: Medium severity, CVSS 5.5 | Vulnix