CVE - CVE-2022-49542

CVE-ID
CVE-2022-49542	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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().
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/09c772557a4fd9490fed1bfb133268313ea22213 URL:https://git.kernel.org/stable/c/09c772557a4fd9490fed1bfb133268313ea22213 MISC:https://git.kernel.org/stable/c/271725e4028559ae7974d762a8467dc9de412f2e URL:https://git.kernel.org/stable/c/271725e4028559ae7974d762a8467dc9de412f2e MISC:https://git.kernel.org/stable/c/cc6501afccec55b8b6c90584cbf71f1fefa77d1e URL:https://git.kernel.org/stable/c/cc6501afccec55b8b6c90584cbf71f1fefa77d1e MISC:https://git.kernel.org/stable/c/e294647b1aed4247fe52851f3a3b2b19ae906228 URL:https://git.kernel.org/stable/c/e294647b1aed4247fe52851f3a3b2b19ae906228
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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