CVE-2022-50236

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: Fix crash on isr after kexec() If the system is rebooted via isr(), the IRQ handler might be triggered before the domain is initialized. Resulting on an invalid memory access error. Fix: [ 0.500930] Unable to handle kernel read from unreadable memory at virtual address 0000000000000070 [ 0.501166] Call trace: [ 0.501174] report_iommu_fault+0x28/0xfc [ 0.501180] mtk_iommu_isr+0x10c/0x1c0 [ joro: Fixed spelling in commit message ]

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 1%

Techniques & Countermeasures

• CWE-908•Use of Uninitialized Resource

  The product uses or accesses a resource that has not been initialized.

Affected Systems

• linux•linux

  ≥ 0df4fabe208d9576f2671d31e77cf46d20fdcd01, < f13acee780cedb3e06a6dadf64d9104cccd2b9fc | ≥ 0df4fabe208d9576f2671d31e77cf46d20fdcd01, < 85cc8a187f2de7a91e2cea522e9406fa12999269 | ≥ 0df4fabe208d9576f2671d31e77cf46d20fdcd01, < 00ef8885a945c37551547d8ac8361cacd20c4e42 | 4.6

• linux•linux_kernel

  ≥ 4.6, < 6.0.17 | ≥ 6.1, < 6.1.3

References (3)

• https://git.kernel.org/stable/c/f13acee780cedb3e06a6dadf64d9104cccd2b9fc
• https://git.kernel.org/stable/c/85cc8a187f2de7a91e2cea522e9406fa12999269
• https://git.kernel.org/stable/c/00ef8885a945c37551547d8ac8361cacd20c4e42