CVE-2022-49118

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-02-26 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: hisi_sas: Free irq vectors in order for v3 HW If the driver probe fails to request the channel IRQ or fatal IRQ, the driver will free the IRQ vectors before freeing the IRQs in free_irq(), and this will cause a kernel BUG like this: ------------[ cut here ]------------ kernel BUG at drivers/pci/msi.c:369! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Call trace: free_msi_irqs+0x118/0x13c pci_disable_msi+0xfc/0x120 pci_free_irq_vectors+0x24/0x3c hisi_sas_v3_probe+0x360/0x9d0 [hisi_sas_v3_hw] local_pci_probe+0x44/0xb0 work_for_cpu_fn+0x20/0x34 process_one_work+0x1d0/0x340 worker_thread+0x2e0/0x460 kthread+0x180/0x190 ret_from_fork+0x10/0x20 ---[ end trace b88990335b610c11 ]--- So we use devm_add_action() to control the order in which we free the vectors.

Affected Software (7)

Vendor	Product	Version
Linux	Linux	e16963f378faf82d307cad2796953f198497c614 < 224903cc60d045576393c3b16907742f23e6c740
Linux	Linux	e16963f378faf82d307cad2796953f198497c614 < f05a0d8de2ea49af36821a20b0b501e20ced937e
Linux	Linux	e16963f378faf82d307cad2796953f198497c614 < 8b6eab9d683bae7f88dc894b8c851f866032301c
Linux	Linux	e16963f378faf82d307cad2796953f198497c614 < b4cc04fa8f1fc3816c8494d77abab3f72b9d2292
Linux	Linux	e16963f378faf82d307cad2796953f198497c614 < 554fb72ee34f4732c7f694f56c3c6e67790352a0
Linux	Linux	5.4
linux	linux_kernel	4.5 – 5.10.111