{"id":"CVE-2026-90034","state":"PUBLISHED","title":"usb: image: mdc800: change kmalloc() to kzalloc()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: image: mdc800: change kmalloc() to kzalloc()\n\nChange the kmalloc() calls in usb_mdc800_init() for irq_urb_buffer and\ndownload_urb_buffer to kzalloc(), avoiding potential stack leaks if a\nshorter message is received in mdc800_usb_irq() and\nmdc800_usb_download_notify()","publishedAt":"2026-09-16T10:33:34.586Z","updatedAt":"2026-10-19T08:56:51.238Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"6c601410d1a9ae645f604fe2f61b9f4942c77dfb","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"2df8f7720ed91f1aad4f128553b6e90c7c5fac1e","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"553c375e86a49882e95840565512e17bff31cc3a","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"8c38049879f2108f57c98f03cc7f3db51a12bdab","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"838455cc8bfe1278150d1d776529edea6cd4c1dd","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"e22428f0c038c23109c0383a235aa607b0cd4c95","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"2430eb81e44111b30eeb5273bbcf8b24ca517ef9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/image/mdc800.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/image/mdc800.c"]}],"references":["https://git.kernel.org/stable/c/6c601410d1a9ae645f604fe2f61b9f4942c77dfb","https://git.kernel.org/stable/c/2df8f7720ed91f1aad4f128553b6e90c7c5fac1e","https://git.kernel.org/stable/c/67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d","https://git.kernel.org/stable/c/553c375e86a49882e95840565512e17bff31cc3a","https://git.kernel.org/stable/c/8c38049879f2108f57c98f03cc7f3db51a12bdab","https://git.kernel.org/stable/c/838455cc8bfe1278150d1d776529edea6cd4c1dd","https://git.kernel.org/stable/c/e22428f0c038c23109c0383a235aa607b0cd4c95","https://git.kernel.org/stable/c/2430eb81e44111b30eeb5273bbcf8b24ca517ef9"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90034.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90034","state":"PUBLISHED","datePublished":"2026-09-16T10:33:34.586Z","dateUpdated":"2026-10-19T08:56:51.238Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.782Z"},"containers":{"cna":{"title":"usb: image: mdc800: change kmalloc() to kzalloc()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: image: mdc800: change kmalloc() to kzalloc()\n\nChange the kmalloc() calls in usb_mdc800_init() for irq_urb_buffer and\ndownload_urb_buffer to kzalloc(), avoiding potential stack leaks if a\nshorter message is received in mdc800_usb_irq() and\nmdc800_usb_download_notify()"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"6c601410d1a9ae645f604fe2f61b9f4942c77dfb","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"2df8f7720ed91f1aad4f128553b6e90c7c5fac1e","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"553c375e86a49882e95840565512e17bff31cc3a","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"8c38049879f2108f57c98f03cc7f3db51a12bdab","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"838455cc8bfe1278150d1d776529edea6cd4c1dd","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"e22428f0c038c23109c0383a235aa607b0cd4c95","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"2430eb81e44111b30eeb5273bbcf8b24ca517ef9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/image/mdc800.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"5.10.270","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/image/mdc800.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6c601410d1a9ae645f604fe2f61b9f4942c77dfb"},{"url":"https://git.kernel.org/stable/c/2df8f7720ed91f1aad4f128553b6e90c7c5fac1e"},{"url":"https://git.kernel.org/stable/c/67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d"},{"url":"https://git.kernel.org/stable/c/553c375e86a49882e95840565512e17bff31cc3a"},{"url":"https://git.kernel.org/stable/c/8c38049879f2108f57c98f03cc7f3db51a12bdab"},{"url":"https://git.kernel.org/stable/c/838455cc8bfe1278150d1d776529edea6cd4c1dd"},{"url":"https://git.kernel.org/stable/c/e22428f0c038c23109c0383a235aa607b0cd4c95"},{"url":"https://git.kernel.org/stable/c/2430eb81e44111b30eeb5273bbcf8b24ca517ef9"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:56:51.238Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}