{"id":"CVE-2026-90019","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: fix null pointer dereference in usb_put_function_instance()\n\nusb_put_function_instance() attempts to dereference fd inside fi struct\nto get mod in uvc_allo…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: fix null pointer dereference in usb_put_function_instance()\n\nusb_put_function_instance() attempts to dereference fd inside fi struct\nto get mod in uvc_allo…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 < 0fc54a00954f9f4c3e3d4ffa64a530685d99a39b","Linux >= 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 < 6e6736c049683380f5e20becde498986e9293ca4","Linux >= 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 < 3a9691fff79bcce95338435599df6d3ae433cfdc","Linux >= 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 < 7a4f4ca7ff32ae24807c83e2a06d62b13378d53c","Linux >= 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 < 6ea3a073ca97716d4a73df49a3bec1c3ccf8e2a0","Linux >= 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 < d3a7fa61997db3bf6dadef4c1bd87a4fa782a817","Linux >= 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 < 5117f236e9e30744338b425395d55913c4500897","Linux >= 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 < 6e74ac5c596fd246e37eadfc354567179ccbe9aa","Linux 3.9"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:17:14.780","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90019","references":[{"url":"https://git.kernel.org/stable/c/0fc54a00954f9f4c3e3d4ffa64a530685d99a39b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3a9691fff79bcce95338435599df6d3ae433cfdc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5117f236e9e30744338b425395d55913c4500897","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6e6736c049683380f5e20becde498986e9293ca4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6e74ac5c596fd246e37eadfc354567179ccbe9aa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6ea3a073ca97716d4a73df49a3bec1c3ccf8e2a0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7a4f4ca7ff32ae24807c83e2a06d62b13378d53c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d3a7fa61997db3bf6dadef4c1bd87a4fa782a817","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-16T10:53:53.938Z","epss":0.0021,"epssPercentile":0.10009,"slug":"CVE-2026-90019","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: fix null pointer dereference in usb_put_function_instance()\n\nusb_put_function_instance() attempts to dereference fd inside fi struct\nto get mod in uvc_alloc_inst() error path. However, fd is not allocated\nuntil later in try_get_usb_function_instance() after allocating fi in\nuvc_alloc_inst() and thus guranteed to be null in error path. Fix this\nby adding a null check for fi->fd that returns if fd is null.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}