{"api_version":"1","generated_at":"2026-07-31T17:41:14+00:00","cve":"CVE-2026-64549","urls":{"html":"https://cve.report/CVE-2026-64549","api":"https://cve.report/api/cve/CVE-2026-64549.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64549","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64549"},"summary":{"title":"Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()\n\nbpa10x_setup() sends the vendor command 0xfc0e and passes the response\nto bt_dev_info() and hci_set_fw_info() as a \"%s\" string starting at\nskb->data + 1, without checking the length:\n\n\tbt_dev_info(hdev, \"%s\", (char *)(skb->data + 1));\n\thci_set_fw_info(hdev, \"%s\", skb->data + 1);\n\nA device that returns a one-byte response (status only) leaves\nskb->data + 1 past the end of the data, and the %s walk reads adjacent\nslab memory until it meets a NUL. The same happens when the payload is\nnot NUL-terminated within skb->len. The out-of-bounds bytes end up in\nthe kernel log and the firmware-info debugfs file.\n\nPrint the revision string with a bounded \"%.*s\" limited to skb->len - 1\ninstead. This keeps the string readable for well-behaved devices while\nnever reading past the received data, and does not fail setup, so a\ndevice returning a short or unterminated response keeps working.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-27 21:17:07","updated_at":"2026-07-27 21:17:07"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/f80b4afe893dffa9fabdbf80fb4d6782b24a6793","name":"https://git.kernel.org/stable/c/f80b4afe893dffa9fabdbf80fb4d6782b24a6793","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a8e169d308775039200bb9c905c7ce420db6e8c5","name":"https://git.kernel.org/stable/c/a8e169d308775039200bb9c905c7ce420db6e8c5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4b4008dda1d0c6e598d7865631ad4eda63a560f0","name":"https://git.kernel.org/stable/c/4b4008dda1d0c6e598d7865631ad4eda63a560f0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7a64f39ebe1bacd9004a62eceadac0b122ec3cc2","name":"https://git.kernel.org/stable/c/7a64f39ebe1bacd9004a62eceadac0b122ec3cc2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1813add71e386f77b3040e6c8dc9b7b3ff965a6c","name":"https://git.kernel.org/stable/c/1813add71e386f77b3040e6c8dc9b7b3ff965a6c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dd068ef044128db655f48323a4acfd5907e04903","name":"https://git.kernel.org/stable/c/dd068ef044128db655f48323a4acfd5907e04903","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bd56c23f1f8681a2857ee924a8bd3abf87c8913b","name":"https://git.kernel.org/stable/c/bd56c23f1f8681a2857ee924a8bd3abf87c8913b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bfc9e7be289df11e8e38c98cd78019d67fdd0bd5","name":"https://git.kernel.org/stable/c/bfc9e7be289df11e8e38c98cd78019d67fdd0bd5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64549","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64549","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ddd68ec8f4847b460c9f580076eafe13b031a6fd 1813add71e386f77b3040e6c8dc9b7b3ff965a6c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ddd68ec8f4847b460c9f580076eafe13b031a6fd bd56c23f1f8681a2857ee924a8bd3abf87c8913b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ddd68ec8f4847b460c9f580076eafe13b031a6fd 7a64f39ebe1bacd9004a62eceadac0b122ec3cc2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ddd68ec8f4847b460c9f580076eafe13b031a6fd f80b4afe893dffa9fabdbf80fb4d6782b24a6793 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.97 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64549","cve":"CVE-2026-64549","epss":"0.001800000","percentile":"0.078790000","score_date":"2026-07-29","updated_at":"2026-07-30 00:09:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/bluetooth/bpa10x.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1813add71e386f77b3040e6c8dc9b7b3ff965a6c","status":"affected","version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","versionType":"git"},{"lessThan":"bd56c23f1f8681a2857ee924a8bd3abf87c8913b","status":"affected","version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","versionType":"git"},{"lessThan":"7a64f39ebe1bacd9004a62eceadac0b122ec3cc2","status":"affected","version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","versionType":"git"},{"lessThan":"f80b4afe893dffa9fabdbf80fb4d6782b24a6793","status":"affected","version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","versionType":"git"},{"lessThan":"4b4008dda1d0c6e598d7865631ad4eda63a560f0","status":"affected","version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","versionType":"git"},{"lessThan":"bfc9e7be289df11e8e38c98cd78019d67fdd0bd5","status":"affected","version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","versionType":"git"},{"lessThan":"a8e169d308775039200bb9c905c7ce420db6e8c5","status":"affected","version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","versionType":"git"},{"lessThan":"dd068ef044128db655f48323a4acfd5907e04903","status":"affected","version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/bluetooth/bpa10x.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.4"},{"lessThan":"4.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.97","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc3","versionStartIncluding":"4.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()\n\nbpa10x_setup() sends the vendor command 0xfc0e and passes the response\nto bt_dev_info() and hci_set_fw_info() as a \"%s\" string starting at\nskb->data + 1, without checking the length:\n\n\tbt_dev_info(hdev, \"%s\", (char *)(skb->data + 1));\n\thci_set_fw_info(hdev, \"%s\", skb->data + 1);\n\nA device that returns a one-byte response (status only) leaves\nskb->data + 1 past the end of the data, and the %s walk reads adjacent\nslab memory until it meets a NUL. The same happens when the payload is\nnot NUL-terminated within skb->len. The out-of-bounds bytes end up in\nthe kernel log and the firmware-info debugfs file.\n\nPrint the revision string with a bounded \"%.*s\" limited to skb->len - 1\ninstead. This keeps the string readable for well-behaved devices while\nnever reading past the received data, and does not fail setup, so a\ndevice returning a short or unterminated response keeps working."}],"providerMetadata":{"dateUpdated":"2026-07-27T20:10:38.894Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1813add71e386f77b3040e6c8dc9b7b3ff965a6c"},{"url":"https://git.kernel.org/stable/c/bd56c23f1f8681a2857ee924a8bd3abf87c8913b"},{"url":"https://git.kernel.org/stable/c/7a64f39ebe1bacd9004a62eceadac0b122ec3cc2"},{"url":"https://git.kernel.org/stable/c/f80b4afe893dffa9fabdbf80fb4d6782b24a6793"},{"url":"https://git.kernel.org/stable/c/4b4008dda1d0c6e598d7865631ad4eda63a560f0"},{"url":"https://git.kernel.org/stable/c/bfc9e7be289df11e8e38c98cd78019d67fdd0bd5"},{"url":"https://git.kernel.org/stable/c/a8e169d308775039200bb9c905c7ce420db6e8c5"},{"url":"https://git.kernel.org/stable/c/dd068ef044128db655f48323a4acfd5907e04903"}],"title":"Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64549","datePublished":"2026-07-27T20:10:38.894Z","dateReserved":"2026-07-19T15:36:31.795Z","dateUpdated":"2026-07-27T20:10:38.894Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-27 21:17:07","lastModifiedDate":"2026-07-27 21:17:07","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64549","Ordinal":"1","Title":"Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_s","CVE":"CVE-2026-64549","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64549","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()\n\nbpa10x_setup() sends the vendor command 0xfc0e and passes the response\nto bt_dev_info() and hci_set_fw_info() as a \"%s\" string starting at\nskb->data + 1, without checking the length:\n\n\tbt_dev_info(hdev, \"%s\", (char *)(skb->data + 1));\n\thci_set_fw_info(hdev, \"%s\", skb->data + 1);\n\nA device that returns a one-byte response (status only) leaves\nskb->data + 1 past the end of the data, and the %s walk reads adjacent\nslab memory until it meets a NUL. The same happens when the payload is\nnot NUL-terminated within skb->len. The out-of-bounds bytes end up in\nthe kernel log and the firmware-info debugfs file.\n\nPrint the revision string with a bounded \"%.*s\" limited to skb->len - 1\ninstead. This keeps the string readable for well-behaved devices while\nnever reading past the received data, and does not fail setup, so a\ndevice returning a short or unterminated response keeps working.","Type":"Description","Title":"Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_s"}]}}}