CVE-2022-49537

scsi: lpfc: Fix call trace observed during I/O with CMF enabled

MEDIUM

5.5

CVSS Score

Published: February 26, 2025 at 02:13 AM UTC

Updated: June 17, 2026 at 05:18 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 5.15.465.15 ≤ v < 5.15.465.15 ≤ v < 5.17.145.15 ≤ v < 5.18.35.15 ≤ v < 5.195.16 ≤ v < 5.17.145.18 ≤ v < 5.18.32243836ad6f384284f10302e6b820b893960d1c5.15

Vendor states this is fixed in 517e0835cfb2007713ff16c4fb8479f08b16aec7 (fixed)

Vendor states this is fixed in ae373d66c427812754db5292eb1481b181daf9ce (fixed)

Vendor states this is fixed in cd7f899de4b1b829125d72ee6fbfd878b637b815 (fixed)

Vendor states this is fixed in d6d45f67a11136cb88a70a29ab22ea6db8ae6bd5 (fixed)

Vendor states this is fixed in 5.15 (unaffected)

Vendor states this is fixed in 5.15.46 (unaffected)

Vendor states this is fixed in 5.17.14 (unaffected)

Vendor states this is fixed in 5.18.3 (unaffected)

Vendor states this is fixed in 5.19 (unaffected)