CVE-2022-48724
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").
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.