CVE-2026-43426
What it is
In the Linux kernel, the following vulnerability has been resolved: usb: renesas_usbhs: fix use-after-free in ISR during device removal In usbhs_remove(), the driver frees resources (including the pipe array) while the interrupt handler (usbhs_interrupt) is still registered. If an interrupt fires after usbhs_pipe_remove() but before the driver is fully unbound, the ISR may access freed memory, causing a use-after-free. Fix this by calling devm_free_irq() before freeing resources. This ensures the interrupt handler is both disabled and synchronized (waits for any running ISR to complete) before usbhs_pipe_remove() is called.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.253
- Linux Kernel < 5.15.203
- Linux Kernel < 6.1.167
- Linux Kernel < 6.6.130
- Linux Kernel < 6.12.78
- Linux Kernel < 6.18.19
- Linux Kernel < 6.19.9
- Linux Kernel 7.0
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-43426.md and follow it. Check whether this project is affected by CVE-2026-43426. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae
- https://git.kernel.org/stable/c/1899edac312ef17a7234851686e8a703f56d0a84
- https://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412
- https://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7
- https://git.kernel.org/stable/c/6287e0c01ccb818e7214f88d885ffb7c9e81b0e0
- https://git.kernel.org/stable/c/6ffe44f022c95b1b29c691d2169c5abc046f7580
- https://git.kernel.org/stable/c/9c6159d5b72d5fc265cce5da04f27d730b552e69
- https://git.kernel.org/stable/c/c7012fc73dab4829404fedeeaa8531f12ac8545f
References
- https://git.kernel.org/stable/c/0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae
- https://git.kernel.org/stable/c/1899edac312ef17a7234851686e8a703f56d0a84
- https://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412
- https://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7
- https://git.kernel.org/stable/c/6287e0c01ccb818e7214f88d885ffb7c9e81b0e0
- https://git.kernel.org/stable/c/6ffe44f022c95b1b29c691d2169c5abc046f7580
- https://git.kernel.org/stable/c/9c6159d5b72d5fc265cce5da04f27d730b552e69
- https://git.kernel.org/stable/c/c7012fc73dab4829404fedeeaa8531f12ac8545f