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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
e16963f378faf82d307cad2796953f198497c614 to < 224903cc60d045576393c3b16907742f23e6c740affectede16963f378faf82d307cad2796953f198497c614 to < f05a0d8de2ea49af36821a20b0b501e20ced937eaffectede16963f378faf82d307cad2796953f198497c614 to < 8b6eab9d683bae7f88dc894b8c851f866032301caffectede16963f378faf82d307cad2796953f198497c614 to < b4cc04fa8f1fc3816c8494d77abab3f72b9d2292affectede16963f378faf82d307cad2796953f198497c614 to < 554fb72ee34f4732c7f694f56c3c6e67790352a0affected
Linux Linux
Default version status: affected
5.4affected0 to < 5.4unaffected5.10.111 to ≤ 5.10.*unaffected5.15.34 to ≤ 5.15.*unaffected5.16.20 to ≤ 5.16.*unaffected5.17.3 to ≤ 5.17.*unaffected5.18 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/224903cc60d045576393c3b16907742f23e6c740 ↗
- https://git.kernel.org/stable/c/f05a0d8de2ea49af36821a20b0b501e20ced937e ↗
- https://git.kernel.org/stable/c/8b6eab9d683bae7f88dc894b8c851f866032301c ↗
- https://git.kernel.org/stable/c/b4cc04fa8f1fc3816c8494d77abab3f72b9d2292 ↗
- https://git.kernel.org/stable/c/554fb72ee34f4732c7f694f56c3c6e67790352a0 ↗