CVE-2022-49542 (GCVE-0-2022-49542)
Vulnerability from cvelistv5
Published
2025-02-26 02:13
Modified
2026-05-11 19:01
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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().
References
Impacted products
Vendor Product Version
Linux Linux Version: 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb
Version: 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb
Version: 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb
Version: 0b3ad32e26460affc9d4b2f9c32d7c228e8b0cfb
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: lpfc: Move cfg_log_verbose check before calling lpfc_dmp_dbg()\n\nIn an attempt to log message 0126 with LOG_TRACE_EVENT, the following hard\nlockup call trace hangs the system.\n\nCall Trace:\n _raw_spin_lock_irqsave+0x32/0x40\n lpfc_dmp_dbg.part.32+0x28/0x220 [lpfc]\n lpfc_cmpl_els_fdisc+0x145/0x460 [lpfc]\n lpfc_sli_cancel_jobs+0x92/0xd0 [lpfc]\n lpfc_els_flush_cmd+0x43c/0x670 [lpfc]\n lpfc_els_flush_all_cmd+0x37/0x60 [lpfc]\n lpfc_sli4_async_event_proc+0x956/0x1720 [lpfc]\n lpfc_do_work+0x1485/0x1d70 [lpfc]\n kthread+0x112/0x130\n ret_from_fork+0x1f/0x40\nKernel panic - not syncing: Hard LOCKUP\n\nThe same CPU tries to claim the phba-\u003eport_list_lock twice.\n\nMove the cfg_log_verbose checks as part of the lpfc_printf_vlog() and\nlpfc_printf_log() macros before calling lpfc_dmp_dbg().  There is no need\nto take the phba-\u003eport_list_lock within lpfc_dmp_dbg()."
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        {
          "url": "https://git.kernel.org/stable/c/e294647b1aed4247fe52851f3a3b2b19ae906228"
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    "datePublished": "2025-02-26T02:13:56.961Z",
    "dateReserved": "2025-02-26T02:08:31.589Z",
    "dateUpdated": "2026-05-11T19:01:56.992Z",
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