Answer in brief
CVE-2026-43428 records a Unknown severity vulnerability in USB: core: Limit the length of unkillable synchronous timeouts. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4e86f5b79e62ded7e3c3ebd688cf5775e618148a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <06d2bbc4c66c6b0e8a43728c4949026026a5be67 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6c62935670acdbb7687ced20494923b66fbb0367 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <659c0c7d50a4b0f6aa197c4c098cfd91daf63862 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <24b31a227f679a942d820840a4dea7f0c09a387f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <64f3d75633aedc12bdff220e9a4337177430bd9d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2d34cb4d1d6283b4be9c78f4a83ed6956d3069ec || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1015c27a5e1a63efae2b18a9901494474b4d1dc3 | 4e86f5b79e62ded7e3c3ebd688cf5775e618148a, 06d2bbc4c66c6b0e8a43728c4949026026a5be67, 6c62935670acdbb7687ced20494923b66fbb0367, 659c0c7d50a4b0f6aa197c4c098cfd91daf63862, 24b31a227f679a942d820840a4dea7f0c09a387f, 64f3d75633aedc12bdff220e9a4337177430bd9d, 2d34cb4d1d6283b4be9c78f4a83ed6956d3069ec, 1015c27a5e1a63efae2b18a9901494474b4d1dc3 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
May 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.