In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Fix call trace observed during I/O with CMF enabled
The following was seen with CMF enabled:
BUG: using smp_processor_id() in preemptible code: systemd-udevd/31711 kernel: caller is lpfc_update_cmf_cmd+0x214/0x420 [lpfc] kernel: CPU: 12 PID: 31711 Comm: systemd-udevd kernel: Call Trace: kernel: <TASK> kernel: dump_stack_lvl+0x44/0x57 kernel: check_preemption_disabled+0xbf/0xe0 kernel: lpfc_update_cmf_cmd+0x214/0x420 [lpfc] kernel: lpfc_nvme_fcp_io_submit+0x23b4/0x4df0 [lpfc]
this_cpu_ptr() calls smp_processor_id() in a preemptible context.
Fix by using per_cpu_ptr() with raw_smp_processor_id() instead.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-hwe-5.15Upgrade linux-gkeopUpgrade linux-raspiUpgrade linux-intel-iotg-5.15Upgrade linux-gcp-5.15Upgrade linux-azureUpgrade linux-ibmUpgrade linux-realtimeUpgrade linux-azure-fde-5.15Upgrade linux-intel-iotgUpgrade linux-nvidiaUpgrade linux-oracle-5.15Upgrade linux-lowlatency-hwe-5.15Upgrade linux-azure-5.15Upgrade linux-oracleUpgrade linux-kvmUpgrade linuxUpgrade linux-lowlatencyUpgrade linux-aws-5.15Upgrade linux-gcpUpgrade linux-riscv-5.15Upgrade linux-awsUpgrade linux-gke | Mar 19, 2025 | Feb 26, 2025 |
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