CVE-2022-49542 (GCVE-0-2022-49542)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2025-12-23 13:24
VLAI?
Title
scsi: lpfc: Move cfg_log_verbose check before calling lpfc_dmp_dbg()
Summary
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().
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb , < 271725e4028559ae7974d762a8467dc9de412f2e (git)
Affected: 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb , < cc6501afccec55b8b6c90584cbf71f1fefa77d1e (git)
Affected: 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb , < 09c772557a4fd9490fed1bfb133268313ea22213 (git)
Affected: 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb , < e294647b1aed4247fe52851f3a3b2b19ae906228 (git)
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    Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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