{"id":"CVE-2026-97482","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: goku_udc: avoid NULL deref of dev->driver in INT_USBRESET log\n\ngoku_irq() handles a number of bus events under a single ep0 path.\nIt already guards the gad…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: goku_udc: avoid NULL deref of dev->driver in INT_USBRESET log\n\ngoku_irq() handles a number of bus events under a single ep0 path.\nIt already guards the gad…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d7b33afbf9b54b61cb423af9663df54eae11d3b1","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ea2901a4a90afc662e4d023542d91f10ab10fd3c","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 999ff3bf665f2abfb6af519ef3d6d42b061d3c15","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a018d4195114ca2cf79858cc45c98581dee4795b","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 10d7fc3008d5b7ec03af8e08927f1d090014c2af","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 28d78783a871cdb7a637dcb72452ff7d303430ae","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5bf5e3fba9bc7dfd69701521dbe9809f8ccbdb02","Linux 2.6.12"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:58.110","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97482","references":[{"url":"https://git.kernel.org/stable/c/10d7fc3008d5b7ec03af8e08927f1d090014c2af","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/28d78783a871cdb7a637dcb72452ff7d303430ae","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5bf5e3fba9bc7dfd69701521dbe9809f8ccbdb02","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/999ff3bf665f2abfb6af519ef3d6d42b061d3c15","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a018d4195114ca2cf79858cc45c98581dee4795b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d7b33afbf9b54b61cb423af9663df54eae11d3b1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ea2901a4a90afc662e4d023542d91f10ab10fd3c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97482.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97482"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540399"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97482"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97482"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97482.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00173,"epssPercentile":0.06645,"cvssSource":"vendor","ingestedAt":"2026-09-24T16:47:15.869Z","slug":"CVE-2026-97482","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: goku_udc: avoid NULL deref of dev->driver in INT_USBRESET log\n\ngoku_irq() handles a number of bus events under a single ep0 path.\nIt already guards the gadget driver suspend/resume callbacks against a\nNULL ->driver:\n\n\tif (dev->gadget.speed != USB_SPEED_UNKNOWN\n\t\t\t&& dev->driver\n\t\t\t&& dev->driver->resume) {\n\t\tspin_unlock(&dev->lock);\n\t\tdev->driver->resume(&dev->gadget);\n\t\t...\n\t}\n\nbut the very next branch unconditionally dereferences dev->driver\nwhen an INT_USBRESET arrives:\n\n\tif (stat & INT_USBRESET) {\n\t\tACK(INT_USBRESET);\n\t\tINFO(dev, \"USB reset done, gadget %s\\n\",\n\t\t\tdev->driver->driver.name);\n\t}\n\nIf the controller raises INT_USBRESET before any gadget driver has\nbeen bound (or after one has been unbound), dev->driver is NULL and\nthe printk dereferences NULL.\n\nsmatch flags the inconsistency:\n\n  drivers/usb/gadget/udc/goku_udc.c:1618 goku_irq() error:\n  we previously assumed 'dev->driver' could be null (see line 1607)\n\nFall back to a placeholder when the gadget driver is not bound.\n\nNo functional change while a gadget driver is bound.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-29 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97482.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":213457,"id":"CVE-2026-97482","ts":1790754732507,"field":"cvss","old":null,"new":"5.5"},{"seq":213456,"id":"CVE-2026-97482","ts":1790754732507,"field":"severity","old":"none","new":"medium"}]}