5.5

CVE-2022-50236: iommu/mediatek: Fix crash on isr after kexec()

Analyzed
AliasesUBUNTU-CVE-2022-50236DEBIAN-CVE-2022-50236
Published 15-09-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50236 is a medium (CVSS 5.5) Use of Uninitialized Resource vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
SUSE-SU-2025:4189-1

Timeline

  1. 15-09-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.15% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu124 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0df4fabe208d9576f2671d31e77cf46d20fdcd01, < f13acee780cedb3e06a6dadf64d9104cccd2b9fc | ≥ 0df4fabe208d9576f2671d31e77cf46d20fdcd01, < 85cc8a187f2de7a91e2cea522e9406fa12999269 | ≥ 0df4fabe208d9576f2671d31e77cf46d20fdcd01, < 00ef8885a945c37551547d8ac8361cacd20c4e42 | 4.6
  • linux_kernel≥ 4.6, < 6.0.17 | ≥ 6.1, < 6.1.3
Debian1 product
  • linux< 6.1.4-1

3 vendors · 127 products

References

7 links