{"api_version":"1","generated_at":"2026-08-16T17:36:17+00:00","cve":"CVE-2026-74457","urls":{"html":"https://cve.report/CVE-2026-74457","api":"https://cve.report/api/cve/CVE-2026-74457.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74457","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74457"},"summary":{"title":"can: peak_usb: add bounds check for USB channel index","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_usb: add bounds check for USB channel index\n\nThe channel control index ctrl_idx is derived from rx->len which comes\ndirectly from a device USB payload. The mask 0x0f allows values 0-15, but\nthe array size of usb_if->dev[] is only 2. Values 2-15 cause heap\nout-of-bounds read, eventually causing kernel panic in the IRQ context.\n\nAdd bounds checking for ctrl_idx before the array access in both\npcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 13:17:50","updated_at":"2026-08-15 13:17:50"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b","name":"https://git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f","name":"https://git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969","name":"https://git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b","name":"https://git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f","name":"https://git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74457","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74457","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d8a199355f8f8a0797c00d98788d7282c9ea38bd 825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d8a199355f8f8a0797c00d98788d7282c9ea38bd f97b7e5e1cdaae15cd95b3a360028c7929664969 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d8a199355f8f8a0797c00d98788d7282c9ea38bd 1acab790b7cecd4e144d1d18bdfe549e282f6b0b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d8a199355f8f8a0797c00d98788d7282c9ea38bd 0149fdb50a30944827acf9600a2cc44de0325a7f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d8a199355f8f8a0797c00d98788d7282c9ea38bd 39132f166ca8ce00ae60d8a9068e06a60943cc4b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.151 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc6 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/can/usb/peak_usb/pcan_usb_pro.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f","status":"affected","version":"d8a199355f8f8a0797c00d98788d7282c9ea38bd","versionType":"git"},{"lessThan":"f97b7e5e1cdaae15cd95b3a360028c7929664969","status":"affected","version":"d8a199355f8f8a0797c00d98788d7282c9ea38bd","versionType":"git"},{"lessThan":"1acab790b7cecd4e144d1d18bdfe549e282f6b0b","status":"affected","version":"d8a199355f8f8a0797c00d98788d7282c9ea38bd","versionType":"git"},{"lessThan":"0149fdb50a30944827acf9600a2cc44de0325a7f","status":"affected","version":"d8a199355f8f8a0797c00d98788d7282c9ea38bd","versionType":"git"},{"lessThan":"39132f166ca8ce00ae60d8a9068e06a60943cc4b","status":"affected","version":"d8a199355f8f8a0797c00d98788d7282c9ea38bd","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/can/usb/peak_usb/pcan_usb_pro.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.4"},{"lessThan":"3.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc6","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"3.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"3.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"3.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"3.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc6","versionStartIncluding":"3.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_usb: add bounds check for USB channel index\n\nThe channel control index ctrl_idx is derived from rx->len which comes\ndirectly from a device USB payload. The mask 0x0f allows values 0-15, but\nthe array size of usb_if->dev[] is only 2. Values 2-15 cause heap\nout-of-bounds read, eventually causing kernel panic in the IRQ context.\n\nAdd bounds checking for ctrl_idx before the array access in both\npcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error()."}],"providerMetadata":{"dateUpdated":"2026-08-15T12:26:59.411Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f"},{"url":"https://git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969"},{"url":"https://git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b"},{"url":"https://git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f"},{"url":"https://git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b"}],"title":"can: peak_usb: add bounds check for USB channel index","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74457","datePublished":"2026-08-15T12:26:59.411Z","dateReserved":"2026-08-15T05:44:03.900Z","dateUpdated":"2026-08-15T12:26:59.411Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 13:17:50","lastModifiedDate":"2026-08-15 13:17:50","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74457","Ordinal":"1","Title":"can: peak_usb: add bounds check for USB channel index","CVE":"CVE-2026-74457","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74457","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_usb: add bounds check for USB channel index\n\nThe channel control index ctrl_idx is derived from rx->len which comes\ndirectly from a device USB payload. The mask 0x0f allows values 0-15, but\nthe array size of usb_if->dev[] is only 2. Values 2-15 cause heap\nout-of-bounds read, eventually causing kernel panic in the IRQ context.\n\nAdd bounds checking for ctrl_idx before the array access in both\npcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error().","Type":"Description","Title":"can: peak_usb: add bounds check for USB channel index"}]}}}