CVE-2022-48724

MEDIUM
Published Jun 20, 2024 Modified Nov 21, 2024 CWE-401

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.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

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 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

Frequently Asked Questions

What is 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"). 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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2022-48724? +
CVE-2022-48724 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2022-48724? +
CVE-2022-48724 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2022-48724? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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