CVE-2022-49542

MEDIUM EPSS 8.2%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
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Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

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().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
8.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel* <5.15.46
linuxlinux_kernel*≥5.16  –  <5.17.14
linuxlinux_kernel*≥5.18  –  <5.18.3

References 4

  • git.kernel.org https://git.kernel.org/stable/c/09c772557a4fd9490fed1bfb133268313ea22213
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/271725e4028559ae7974d762a8467dc9de412f2e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc6501afccec55b8b6c90584cbf71f1fefa77d1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e294647b1aed4247fe52851f3a3b2b19ae906228
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/09c772557a4fd9490fed1bfb133268313ea22213
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/271725e4028559ae7974d762a8467dc9de412f2e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc6501afccec55b8b6c90584cbf71f1fefa77d1e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e294647b1aed4247fe52851f3a3b2b19ae906228
    Patch