# CVE-2022-49542: linux: In the Linux kernel, the following vulnerability has been resolved:  scsi: lpfc: Move cfg_log_verbose check before ca...

CVE-2022-49542 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49542, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2022-49542
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## 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().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.18.5-1 | [DEBIAN-CVE-2022-49542](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49542.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.18.5-1 | [DEBIAN-CVE-2022-49542](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49542.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.18.5-1 | [DEBIAN-CVE-2022-49542](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49542.md) | Feb 26, 2025 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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