CVE-2022-50236
kernel: iommu/mediatek: Fix crash on isr after kexec()
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Severity
UnknownRed Hat Product Security
CVSS
Review impact separately from score.
Published · September 15, 2025
Updated · June 30, 2026
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 ]
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE not specified