{"api_version":"1","generated_at":"2026-08-22T04:27:10+00:00","cve":"CVE-2026-68369","urls":{"html":"https://cve.report/CVE-2026-68369","api":"https://cve.report/api/cve/CVE-2026-68369.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68369","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68369"},"summary":{"title":"usb: gadget: printer: fix infinite loop in printer_read()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: printer: fix infinite loop in printer_read()\n\nprinter_read() uses the same variable for the requested copy size and\nthe number of bytes actually copied to user space. copy_to_user()\nreturns the number of bytes not copied, so when it fails to copy\nanything, the computed copied length becomes zero.\n\nIn that case len, buf, current_rx_bytes and current_rx_buf are left\nunchanged. If RX data is available and the user buffer remains\nunwritable, the read loop can repeat indefinitely.\n\nTrack the copied length separately and return -EFAULT, or the number of\nbytes already copied, if an iteration makes no progress.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:29","updated_at":"2026-08-19 17:20:46"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e","name":"https://git.kernel.org/stable/c/e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/994afccfdcceb73be33f69a8a8ea71e260c9eca5","name":"https://git.kernel.org/stable/c/994afccfdcceb73be33f69a8a8ea71e260c9eca5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3081b0e187065c3b9577e393ad664b12854aeaf3","name":"https://git.kernel.org/stable/c/3081b0e187065c3b9577e393ad664b12854aeaf3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e03597ad9494b500344076589aeaa6c6d2d381d3","name":"https://git.kernel.org/stable/c/e03597ad9494b500344076589aeaa6c6d2d381d3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c2e819be6a5c7f34344926b4bd7e3dfca58cf48a","name":"https://git.kernel.org/stable/c/c2e819be6a5c7f34344926b4bd7e3dfca58cf48a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e225e2998e5a9b83c838dbbe4511fb0d63f88daf","name":"https://git.kernel.org/stable/c/e225e2998e5a9b83c838dbbe4511fb0d63f88daf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3f81197364b57e5318620c75f3bd63f405f60552","name":"https://git.kernel.org/stable/c/3f81197364b57e5318620c75f3bd63f405f60552","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4cde0b38cc0cb8b7dc17295801015148de37d1d2","name":"https://git.kernel.org/stable/c/4cde0b38cc0cb8b7dc17295801015148de37d1d2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68369","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68369","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b185f01a9ab7af586133be2555298e960237359b 3f81197364b57e5318620c75f3bd63f405f60552 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b185f01a9ab7af586133be2555298e960237359b e225e2998e5a9b83c838dbbe4511fb0d63f88daf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b185f01a9ab7af586133be2555298e960237359b 3081b0e187065c3b9577e393ad664b12854aeaf3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b185f01a9ab7af586133be2555298e960237359b 994afccfdcceb73be33f69a8a8ea71e260c9eca5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b185f01a9ab7af586133be2555298e960237359b e03597ad9494b500344076589aeaa6c6d2d381d3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b185f01a9ab7af586133be2555298e960237359b 4cde0b38cc0cb8b7dc17295801015148de37d1d2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b185f01a9ab7af586133be2555298e960237359b e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b185f01a9ab7af586133be2555298e960237359b c2e819be6a5c7f34344926b4bd7e3dfca58cf48a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.1","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.1 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.265 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.148 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.101 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.42 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"68369","cve":"CVE-2026-68369","epss":"0.002000000","percentile":"0.101860000","score_date":"2026-08-19","updated_at":"2026-08-20 00:13:09"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/gadget/function/f_printer.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3f81197364b57e5318620c75f3bd63f405f60552","status":"affected","version":"b185f01a9ab7af586133be2555298e960237359b","versionType":"git"},{"lessThan":"e225e2998e5a9b83c838dbbe4511fb0d63f88daf","status":"affected","version":"b185f01a9ab7af586133be2555298e960237359b","versionType":"git"},{"lessThan":"3081b0e187065c3b9577e393ad664b12854aeaf3","status":"affected","version":"b185f01a9ab7af586133be2555298e960237359b","versionType":"git"},{"lessThan":"994afccfdcceb73be33f69a8a8ea71e260c9eca5","status":"affected","version":"b185f01a9ab7af586133be2555298e960237359b","versionType":"git"},{"lessThan":"e03597ad9494b500344076589aeaa6c6d2d381d3","status":"affected","version":"b185f01a9ab7af586133be2555298e960237359b","versionType":"git"},{"lessThan":"4cde0b38cc0cb8b7dc17295801015148de37d1d2","status":"affected","version":"b185f01a9ab7af586133be2555298e960237359b","versionType":"git"},{"lessThan":"e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e","status":"affected","version":"b185f01a9ab7af586133be2555298e960237359b","versionType":"git"},{"lessThan":"c2e819be6a5c7f34344926b4bd7e3dfca58cf48a","status":"affected","version":"b185f01a9ab7af586133be2555298e960237359b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/gadget/function/f_printer.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.1"},{"lessThan":"4.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.265","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.265","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.148","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"4.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"4.1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: printer: fix infinite loop in printer_read()\n\nprinter_read() uses the same variable for the requested copy size and\nthe number of bytes actually copied to user space. copy_to_user()\nreturns the number of bytes not copied, so when it fails to copy\nanything, the computed copied length becomes zero.\n\nIn that case len, buf, current_rx_bytes and current_rx_buf are left\nunchanged. If RX data is available and the user buffer remains\nunwritable, the read loop can repeat indefinitely.\n\nTrack the copied length separately and return -EFAULT, or the number of\nbytes already copied, if an iteration makes no progress."}],"providerMetadata":{"dateUpdated":"2026-08-19T16:34:28.812Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3f81197364b57e5318620c75f3bd63f405f60552"},{"url":"https://git.kernel.org/stable/c/e225e2998e5a9b83c838dbbe4511fb0d63f88daf"},{"url":"https://git.kernel.org/stable/c/3081b0e187065c3b9577e393ad664b12854aeaf3"},{"url":"https://git.kernel.org/stable/c/994afccfdcceb73be33f69a8a8ea71e260c9eca5"},{"url":"https://git.kernel.org/stable/c/e03597ad9494b500344076589aeaa6c6d2d381d3"},{"url":"https://git.kernel.org/stable/c/4cde0b38cc0cb8b7dc17295801015148de37d1d2"},{"url":"https://git.kernel.org/stable/c/e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e"},{"url":"https://git.kernel.org/stable/c/c2e819be6a5c7f34344926b4bd7e3dfca58cf48a"}],"title":"usb: gadget: printer: fix infinite loop in printer_read()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68369","datePublished":"2026-08-10T12:03:46.845Z","dateReserved":"2026-07-30T09:28:09.386Z","dateUpdated":"2026-08-19T16:34:28.812Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:29","lastModifiedDate":"2026-08-19 17:20:46","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68369","Ordinal":"1","Title":"usb: gadget: printer: fix infinite loop in printer_read()","CVE":"CVE-2026-68369","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68369","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: printer: fix infinite loop in printer_read()\n\nprinter_read() uses the same variable for the requested copy size and\nthe number of bytes actually copied to user space. copy_to_user()\nreturns the number of bytes not copied, so when it fails to copy\nanything, the computed copied length becomes zero.\n\nIn that case len, buf, current_rx_bytes and current_rx_buf are left\nunchanged. If RX data is available and the user buffer remains\nunwritable, the read loop can repeat indefinitely.\n\nTrack the copied length separately and return -EFAULT, or the number of\nbytes already copied, if an iteration makes no progress.","Type":"Description","Title":"usb: gadget: printer: fix infinite loop in printer_read()"}]}}}