{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64549","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T15:36:31.795Z","datePublished":"2026-07-27T20:10:38.894Z","dateUpdated":"2026-08-17T04:57:26.570Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T04:57:26.570Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/bpa10x.c"],"versions":[{"version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","lessThan":"1813add71e386f77b3040e6c8dc9b7b3ff965a6c","status":"affected","versionType":"git"},{"version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","lessThan":"bd56c23f1f8681a2857ee924a8bd3abf87c8913b","status":"affected","versionType":"git"},{"version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","lessThan":"7a64f39ebe1bacd9004a62eceadac0b122ec3cc2","status":"affected","versionType":"git"},{"version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","lessThan":"f80b4afe893dffa9fabdbf80fb4d6782b24a6793","status":"affected","versionType":"git"},{"version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","lessThan":"4b4008dda1d0c6e598d7865631ad4eda63a560f0","status":"affected","versionType":"git"},{"version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","lessThan":"bfc9e7be289df11e8e38c98cd78019d67fdd0bd5","status":"affected","versionType":"git"},{"version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","lessThan":"a8e169d308775039200bb9c905c7ce420db6e8c5","status":"affected","versionType":"git"},{"version":"ddd68ec8f4847b460c9f580076eafe13b031a6fd","lessThan":"dd068ef044128db655f48323a4acfd5907e04903","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/bluetooth/bpa10x.c"],"versions":[{"version":"4.4","status":"affected"},{"version":"0","lessThan":"4.4","status":"unaffected","versionType":"semver"},{"version":"5.10.261","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.212","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.5","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":"4.4","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"7.2"}]}]}],"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"}}}}