CVE-2022-48724

Vulnerability Description

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.

CVSS Score

Affected Products

Related Weaknesses (CWE)

References

• https://git.kernel.org/stable/c/336d096b62bdc673e852b6b80d5072d7888ce85dPatch
• https://git.kernel.org/stable/c/5c43d46daa0d2928234dd2792ebebc35d29ee2d1Patch
• https://git.kernel.org/stable/c/99e675d473eb8cf2deac1376a0f840222fc1adcfPatch
• https://git.kernel.org/stable/c/9d9995b0371e4e8c18d4f955479e5d47efe7b2d4Patch
• https://git.kernel.org/stable/c/a0c685ba99961b1dd894b2e470e692a539770f6dPatch
• https://git.kernel.org/stable/c/a31cb1f0fb6caf46ffe88c41252b6b7a4ee062d9Patch
• https://git.kernel.org/stable/c/b62eceb5f8f08815fe3f945fc55bbf997c344ecdPatch
• https://git.kernel.org/stable/c/336d096b62bdc673e852b6b80d5072d7888ce85dPatch
• https://git.kernel.org/stable/c/5c43d46daa0d2928234dd2792ebebc35d29ee2d1Patch
• https://git.kernel.org/stable/c/99e675d473eb8cf2deac1376a0f840222fc1adcfPatch
• https://git.kernel.org/stable/c/9d9995b0371e4e8c18d4f955479e5d47efe7b2d4Patch
• https://git.kernel.org/stable/c/a0c685ba99961b1dd894b2e470e692a539770f6dPatch
• https://git.kernel.org/stable/c/a31cb1f0fb6caf46ffe88c41252b6b7a4ee062d9Patch
• https://git.kernel.org/stable/c/b62eceb5f8f08815fe3f945fc55bbf997c344ecdPatch