{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31754","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-03-09T15:48:24.139Z","datePublished":"2026-05-01T14:14:45.628Z","dateUpdated":"2026-05-11T22:15:10.071Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:15:10.071Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: gadget: fix state inconsistency on gadget init failure\n\nWhen cdns3_gadget_start() fails, the DRD hardware is left in gadget mode\nwhile software state remains INACTIVE, creating hardware/software state\ninconsistency.\n\nWhen switching to host mode via sysfs:\n  echo host > /sys/class/usb_role/13180000.usb-role-switch/role\n\nThe role state is not set to CDNS_ROLE_STATE_ACTIVE due to the error,\nso cdns_role_stop() skips cleanup because state is still INACTIVE.\nThis violates the DRD controller design specification (Figure22),\nwhich requires returning to idle state before switching roles.\n\nThis leads to a synchronous external abort in xhci_gen_setup() when\nsetting up the host controller:\n\n[  516.440698] configfs-gadget 13180000.usb: failed to start g1: -19\n[  516.442035] cdns-usb3 13180000.usb: Failed to add gadget\n[  516.443278] cdns-usb3 13180000.usb: set role 2 has failed\n...\n[ 1301.375722] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller\n[ 1301.377716] Internal error: synchronous external abort: 96000010 [#1] PREEMPT SMP\n[ 1301.382485] pc : xhci_gen_setup+0xa4/0x408\n[ 1301.393391] backtrace:\n    ...\n    xhci_gen_setup+0xa4/0x408    <-- CRASH\n    xhci_plat_setup+0x44/0x58\n    usb_add_hcd+0x284/0x678\n    ...\n    cdns_role_set+0x9c/0xbc        <-- Role switch\n\nFix by calling cdns_drd_gadget_off() in the error path to properly\nclean up the DRD gadget state."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/cdns3/cdns3-gadget.c"],"versions":[{"version":"7733f6c32e36ff9d7adadf40001039bf219b1cbe","lessThan":"fb7110a052467098967284ef14d306810b354937","status":"affected","versionType":"git"},{"version":"7733f6c32e36ff9d7adadf40001039bf219b1cbe","lessThan":"9b1d301fbae837bf6979a19030b81d869bb15f7a","status":"affected","versionType":"git"},{"version":"7733f6c32e36ff9d7adadf40001039bf219b1cbe","lessThan":"cfca84f5986afceb63a3adf39d4a98e915aebbc2","status":"affected","versionType":"git"},{"version":"7733f6c32e36ff9d7adadf40001039bf219b1cbe","lessThan":"c7e475ae3a5593c5db21b3b7dca4ba8bdac9b47f","status":"affected","versionType":"git"},{"version":"7733f6c32e36ff9d7adadf40001039bf219b1cbe","lessThan":"5a85599ca4d2584d89dc69f4fc49303b75a42338","status":"affected","versionType":"git"},{"version":"7733f6c32e36ff9d7adadf40001039bf219b1cbe","lessThan":"b490f0e477d26d29ed51e5dc47e3b9bd31bcb49f","status":"affected","versionType":"git"},{"version":"7733f6c32e36ff9d7adadf40001039bf219b1cbe","lessThan":"c32f8748d70c8fc77676ad92ed76cede17bf2c48","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/cdns3/cdns3-gadget.c"],"versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.168","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.134","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.81","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.22","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.12","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.1.168"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.6.134"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.12.81"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.18.22"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.19.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/fb7110a052467098967284ef14d306810b354937"},{"url":"https://git.kernel.org/stable/c/9b1d301fbae837bf6979a19030b81d869bb15f7a"},{"url":"https://git.kernel.org/stable/c/cfca84f5986afceb63a3adf39d4a98e915aebbc2"},{"url":"https://git.kernel.org/stable/c/c7e475ae3a5593c5db21b3b7dca4ba8bdac9b47f"},{"url":"https://git.kernel.org/stable/c/5a85599ca4d2584d89dc69f4fc49303b75a42338"},{"url":"https://git.kernel.org/stable/c/b490f0e477d26d29ed51e5dc47e3b9bd31bcb49f"},{"url":"https://git.kernel.org/stable/c/c32f8748d70c8fc77676ad92ed76cede17bf2c48"}],"title":"usb: cdns3: gadget: fix state inconsistency on gadget init failure","x_generator":{"engine":"bippy-1.2.0"}}}}