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In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock
During stress I/O tests with 500+ vports, hard LOCKUP call traces are observed.
CPU A: native_queued_spin_lock_slowpath+0x192 _raw_spin_lock_irqsave+0x32 lpfc_handle_fcp_err+0x4c6 lpfc_fcp_io_cmd_wqe_cmpl+0x964 lpfc_sli4_fp_handle_cqe+0x266 __lpfc_sli4_process_cq+0x105 __lpfc_sli4_hba_process_cq+0x3c lpfc_cq_poll_hdler+0x16 irq_poll_softirq+0x76 __softirqentry_text_start+0xe4 irq_exit+0xf7 do_IRQ+0x7f
CPU B: native_queued_spin_lock_slowpath+0x5b _raw_spin_lock+0x1c lpfc_abort_handler+0x13e scmd_eh_abort_handler+0x85 process_one_work+0x1a7 worker_thread+0x30 kthread+0x112 ret_from_fork+0x1f
Diagram of lockup:
CPUA CPUB ---- ---- lpfc_cmd->buf_lock phba->hbalock lpfc_cmd->buf_lock phba->hbalock
Fix by reordering the taking of the lpfc_cmd->buf_lock and phba->hbalock in lpfc_abort_handler routine so that it tries to take the lpfc_cmd->buf_lock first before phba->hbalock.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade bpftoolUpgrade kernelUpgrade python3-perfUpgrade kernel-tools-libs | Jun 13, 2025 | Feb 26, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade bpftoolUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-tools | Jun 11, 2025 | Feb 26, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel | Jul 1, 2025 | Feb 26, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-gcp-5.15Upgrade linux-ibmUpgrade linux-intel-iotgUpgrade linux-oracle-5.15Upgrade linux-oracleUpgrade linux-azure-5.15Upgrade linux-intel-iotg-5.15Upgrade linux-hwe-5.15Upgrade linux-realtimeUpgrade linux-azure-fde-5.15Upgrade linux-gkeopUpgrade linux-azureUpgrade linux-nvidiaUpgrade linux-kvmUpgrade linux-raspiUpgrade linuxUpgrade linux-lowlatency-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-gkeUpgrade linux-awsUpgrade linux-aws-5.15Upgrade linux-gcpUpgrade linux-lowlatency | Mar 19, 2025 | Feb 26, 2025 |
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