CVE-2026-43426
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.13% probability · 2th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/0b7d11fd6e742ecc0b1eca44b4f0b93140c74baePatch
- https://git.kernel.org/stable/c/1899edac312ef17a7234851686e8a703f56d0a84Patch
- https://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412Patch
- https://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7Patch
- https://git.kernel.org/stable/c/6287e0c01ccb818e7214f88d885ffb7c9e81b0e0Patch
- https://git.kernel.org/stable/c/6ffe44f022c95b1b29c691d2169c5abc046f7580Patch
- https://git.kernel.org/stable/c/9c6159d5b72d5fc265cce5da04f27d730b552e69Patch
- https://git.kernel.org/stable/c/c7012fc73dab4829404fedeeaa8531f12ac8545fPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.