Resource Leak Affecting kernel-debuginfo-common-x86_64 package, versions <0:4.14.268-205.500.amzn2

Note: Versions mentioned in the description apply only to the upstream kernel-debuginfo-common-x86_64 package and not the kernel-debuginfo-common-x86_64 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

iommu/vt-d: Fix potential memory leak in intel_setup_irq_remapping()

After commit e3beca48a45b ("irqdomain/treewide: Keep firmware node unconditionally allocated"). For tear down scenario, fn is only freed after fail to allocate ir_domain, though it also should be freed in case dmar_enable_qi returns error.

Besides free fn, irq_domain and ir_msi_domain need to be removed as well if intel_setup_irq_remapping fails to enable queued invalidation.

Improve the rewinding path by add out_free_ir_domain and out_free_fwnode lables per Baolu's suggestion.

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-48724
• https://git.kernel.org/stable/c/336d096b62bdc673e852b6b80d5072d7888ce85d
• https://git.kernel.org/stable/c/5c43d46daa0d2928234dd2792ebebc35d29ee2d1
• https://git.kernel.org/stable/c/99e675d473eb8cf2deac1376a0f840222fc1adcf
• https://git.kernel.org/stable/c/9d9995b0371e4e8c18d4f955479e5d47efe7b2d4
• https://git.kernel.org/stable/c/a0c685ba99961b1dd894b2e470e692a539770f6d
• https://git.kernel.org/stable/c/a31cb1f0fb6caf46ffe88c41252b6b7a4ee062d9
• https://git.kernel.org/stable/c/b62eceb5f8f08815fe3f945fc55bbf997c344ecd