{"id":"CVE-2026-90020","published":"2026-09-16T11:17:14.903","lastModified":"2026-09-17T10:17:05.793","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: gadget: fix NULL pointer dereference in gadget_dev_ioctl()\n\ngadget_dev_ioctl() reads dev->gadget before acquiring dev->lock, but\ndev->state is checked after acquiring the lock. Therefore a concurrent\nbind can change the device state between these operations, which can\nleave ioctl with a stale NULL gadget pointer and causing a NULL pointer\ndereference at gadget->ops->ioctl.\n\nRead dev->gadget while holding dev->lock so that the gadget pointer\nand device state are sampled consistently.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/162178ca83c3de986900385a0477eb539f8e1a7e","tags":[]},{"url":"https://git.kernel.org/stable/c/64ec019bf9a8b12f53b9f2777d65aadb730b5a84","tags":[]},{"url":"https://git.kernel.org/stable/c/87cbf9410b12f5c2d659bb01e8ecf6517cb9f28c","tags":[]},{"url":"https://git.kernel.org/stable/c/8be30959be31b4205e3bdd2e2a6221f3a2ee7ea1","tags":[]},{"url":"https://git.kernel.org/stable/c/c29a83c1ff3f06d5751f6d365b606c9f81ccc4cb","tags":[]},{"url":"https://git.kernel.org/stable/c/dd0eed9e165b1a6292f49e622e3dd0b7d99b106d","tags":[]},{"url":"https://git.kernel.org/stable/c/e8219accce2f6d3502ed71f5b5e854ecf27249a6","tags":[]},{"url":"https://git.kernel.org/stable/c/ebd916fdfefaacbc0e577f7037ec96b31a105e5f","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}