Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.5, < 5.10.111 |
References
- https://git.kernel.org/stable/c/224903cc60d045576393c3b16907742f23e6c740Patch
- https://git.kernel.org/stable/c/554fb72ee34f4732c7f694f56c3c6e67790352a0Patch
- https://git.kernel.org/stable/c/8b6eab9d683bae7f88dc894b8c851f866032301cPatch
- https://git.kernel.org/stable/c/b4cc04fa8f1fc3816c8494d77abab3f72b9d2292Patch
- https://git.kernel.org/stable/c/f05a0d8de2ea49af36821a20b0b501e20ced937ePatch
FAQ
What is CVE-2022-49118?
CVE-2022-49118 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 ...
How severe is CVE-2022-49118?
CVE-2022-49118 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49118?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.