Riskcovery

CVE-2022-50236

iommu/mediatek: Fix crash on isr after kexec()

State
Published
Severity
Not scored
Published
Sep 15, 2025
Updated
May 11, 2026
Reserved
Jun 18, 2025

Read the record on cve.org

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 ]

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 0df4fabe208d9576f2671d31e77cf46d20fdcd01 to before f13acee780cedb3e06a6dadf64d9104cccd2b9fcAffected
  • 0df4fabe208d9576f2671d31e77cf46d20fdcd01 to before 85cc8a187f2de7a91e2cea522e9406fa12999269Affected
  • 0df4fabe208d9576f2671d31e77cf46d20fdcd01 to before 00ef8885a945c37551547d8ac8361cacd20c4e42Affected
LinuxLinux
  • 4.6Affected
  • before 4.6Not affected
  • 6.0.17 through 6.0.*Not affected
  • 6.1.3 through 6.1.*Not affected
  • 6.2 and laterNot affected

References

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