{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74681","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-15T05:44:03.925Z","datePublished":"2026-08-22T15:32:48.873Z","dateUpdated":"2026-08-22T15:32:48.873Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-22T15:32:48.873Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: misc: usbio: check ibuf_len against rxbuf_len in bulk msg\n\nibuf_len is the bulk IN (receive) buffer size, but the EMSGSIZE check\nin usbio_bulk_msg() compares it against txbuf_len — the bulk OUT\nendpoint size.  Both are taken independently from different endpoints\nin usbio_probe(), so the check is wrong when they differ.\n\nUse rxbuf_len for the IN direction.  This matches the buffer that\nactually holds the response data."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/misc/usbio.c"],"versions":[{"version":"121a0f839dbb397af5fabb701cea3e9983223e50","lessThan":"ebfd1e82ab0a6d26efd9bdd89de899215851f5bf","status":"affected","versionType":"git"},{"version":"121a0f839dbb397af5fabb701cea3e9983223e50","lessThan":"9ad0164f78b66b0b5eca3a5748cc94dd87e28124","status":"affected","versionType":"git"},{"version":"121a0f839dbb397af5fabb701cea3e9983223e50","lessThan":"7e22c9f79b200672f3e477421b6c9050d8cf70a5","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/misc/usbio.c"],"versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","status":"unaffected","versionType":"semver"},{"version":"6.18.45","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.9","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"6.18","versionEndExcluding":"6.18.45"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.1.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ebfd1e82ab0a6d26efd9bdd89de899215851f5bf"},{"url":"https://git.kernel.org/stable/c/9ad0164f78b66b0b5eca3a5748cc94dd87e28124"},{"url":"https://git.kernel.org/stable/c/7e22c9f79b200672f3e477421b6c9050d8cf70a5"}],"title":"usb: misc: usbio: check ibuf_len against rxbuf_len in bulk msg","x_generator":{"engine":"bippy-1.2.0"}}}}