CVE-2026-98564: Linux kernel · net: dsa: mt7530: leave the MDIO IRQ mappings to regmap-irq
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in f306e465b5a2091cd3fe3dd0feb10cfc94cfb2f8 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in f306e465b5a2091cd3fe3dd0feb10cfc94cfb2f8, 2357c682f6eaf639dec88c68b3c0c93a3b802635, 0d80ba0a204c6a16bd7778b50de578dff107c0fe
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Linux kernel to f306e465b5a2091cd3fe3dd0feb10cfc94cfb2f8, 2357c682f6eaf639dec88c68b3c0c93a3b802635 or 0d80ba0a204c6a16bd7778b50de578dff107c0fe.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available in the Linux kernel as identified by the fixed commit versions (f306e465b5a2091cd3fe3dd0feb10cfc94cfb2f8, 2357c682f6eaf639dec88c68b3c0c93a3b802635, 0d80ba0a204c6a16bd7778b50de578dff107c0fe). Users should update to a patched kernel version incorporating these commits. No additional mitigation actions are required as the fix addresses the root cause.
Description
A vulnerability in the Linux kernel's mt7530 driver related to MDIO IRQ mappings has been resolved. The issue involved improper disposal of per-PHY interrupt mappings, leading to a potential late dispatch on freed interrupt descriptors. This could cause the kernel to lock a null descriptor, but the driver’s fix ensures that such late dispatches are harmless as PHY handlers are freed beforehand.