CVE-2026-43428
Description
In the Linux kernel, the following vulnerability has been resolved: USB: core: Limit the length of unkillable synchronous timeouts The usb_control_msg(), usb_bulk_msg(), and usb_interrupt_msg() APIs in usbcore allow unlimited timeout durations. And since they use uninterruptible waits, this leaves open the possibility of hanging a task for an indefinitely long time, with no way to kill it short of unplugging the target device. To prevent this sort of problem, enforce a maximum limit on the length of these unkillable timeouts. The limit chosen here, somewhat arbitrarily, is 60 seconds. On many systems (although not all) this is short enough to avoid triggering the kernel's hung-task detector. In addition, clear up the ambiguity of negative timeout values by treating them the same as 0, i.e., using the maximum allowed timeout.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 3 releases
| Version | Status | Fixed in |
|---|---|---|
| 7.0 | Affected | — |
| 2.6.12 | Affected | — |
| — | Affected | 5.10.253 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.12.85-1 |
| sid | Fixed | 6.19.10-1 |
| forky | Fixed | 6.19.10-1 |
| bullseye | Fixed | 5.10.257-1 |
| bookworm | Fixed | 6.1.170-1 |
References
- https://git.kernel.org/stable/c/06d2bbc4c66c6b0e8a43728c4949026026a5be67
- https://git.kernel.org/stable/c/1015c27a5e1a63efae2b18a9901494474b4d1dc3
- https://git.kernel.org/stable/c/24b31a227f679a942d820840a4dea7f0c09a387f
- https://git.kernel.org/stable/c/2d34cb4d1d6283b4be9c78f4a83ed6956d3069ec
- https://git.kernel.org/stable/c/4e86f5b79e62ded7e3c3ebd688cf5775e618148a
- https://git.kernel.org/stable/c/64f3d75633aedc12bdff220e9a4337177430bd9d
- https://git.kernel.org/stable/c/659c0c7d50a4b0f6aa197c4c098cfd91daf63862
- https://git.kernel.org/stable/c/6c62935670acdbb7687ced20494923b66fbb0367
- https://www.suse.com/security/cve/CVE-2026-43428.html
- https://security-tracker.debian.org/tracker/CVE-2026-43428
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.