{"id":"CVE-2026-97976","state":"PUBLISHED","title":"Bluetooth: btintel_pcie: validate packet_len before skb_put_data","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel_pcie: validate packet_len before skb_put_data\n\nbtintel_pcie_submit_rx_work() reads packet_len from rfh_hdr without\nchecking if it exceeds the RX buffer size. An oversized packet_len\ncan lead to an out-of-bounds read in skb_put_data().\n\nValidate packet_len to ensure it is non-zero and does not exceed\nBTINTEL_PCIE_BUFFER_SIZE - sizeof(*rfh_hdr), logging an error when\ninvalid.\n\nThis issue was reported by Claude Mythos. It can be simulated either by\nusing customized firmware configured to return an invalid packet_len or\nby modifying rfh_hdr->packet_len in the driver before calling\nbtintel_pcie_submit_rx_work().","publishedAt":"2026-09-25T10:23:14.596Z","updatedAt":"2026-10-19T09:11:43.531Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c2b636b3f788d10486a6691ad6dd3ec4c93bd78e","status":"affected","lessThan":"ab0159b1f7214ce9bad9862751e4553e635a21b1","versionType":"git"},{"version":"c2b636b3f788d10486a6691ad6dd3ec4c93bd78e","status":"affected","lessThan":"73a50c636425cb9f7ab647b5a97bd14dd5610076","versionType":"git"},{"version":"c2b636b3f788d10486a6691ad6dd3ec4c93bd78e","status":"affected","lessThan":"46884c0f92708f1d218fc94d88800227a19b52f8","versionType":"git"},{"version":"c2b636b3f788d10486a6691ad6dd3ec4c93bd78e","status":"affected","lessThan":"6436e1b5331b1aebf905c13e0880a37032719b75","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/btintel_pcie.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","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/bluetooth/btintel_pcie.c"]}],"references":["https://git.kernel.org/stable/c/ab0159b1f7214ce9bad9862751e4553e635a21b1","https://git.kernel.org/stable/c/73a50c636425cb9f7ab647b5a97bd14dd5610076","https://git.kernel.org/stable/c/46884c0f92708f1d218fc94d88800227a19b52f8","https://git.kernel.org/stable/c/6436e1b5331b1aebf905c13e0880a37032719b75"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97976.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97976","state":"PUBLISHED","datePublished":"2026-09-25T10:23:14.596Z","dateUpdated":"2026-10-19T09:11:43.531Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:18:58.207Z"},"containers":{"cna":{"title":"Bluetooth: btintel_pcie: validate packet_len before skb_put_data","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel_pcie: validate packet_len before skb_put_data\n\nbtintel_pcie_submit_rx_work() reads packet_len from rfh_hdr without\nchecking if it exceeds the RX buffer size. An oversized packet_len\ncan lead to an out-of-bounds read in skb_put_data().\n\nValidate packet_len to ensure it is non-zero and does not exceed\nBTINTEL_PCIE_BUFFER_SIZE - sizeof(*rfh_hdr), logging an error when\ninvalid.\n\nThis issue was reported by Claude Mythos. It can be simulated either by\nusing customized firmware configured to return an invalid packet_len or\nby modifying rfh_hdr->packet_len in the driver before calling\nbtintel_pcie_submit_rx_work()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c2b636b3f788d10486a6691ad6dd3ec4c93bd78e","status":"affected","lessThan":"ab0159b1f7214ce9bad9862751e4553e635a21b1","versionType":"git"},{"version":"c2b636b3f788d10486a6691ad6dd3ec4c93bd78e","status":"affected","lessThan":"73a50c636425cb9f7ab647b5a97bd14dd5610076","versionType":"git"},{"version":"c2b636b3f788d10486a6691ad6dd3ec4c93bd78e","status":"affected","lessThan":"46884c0f92708f1d218fc94d88800227a19b52f8","versionType":"git"},{"version":"c2b636b3f788d10486a6691ad6dd3ec4c93bd78e","status":"affected","lessThan":"6436e1b5331b1aebf905c13e0880a37032719b75","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/bluetooth/btintel_pcie.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","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/bluetooth/btintel_pcie.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ab0159b1f7214ce9bad9862751e4553e635a21b1"},{"url":"https://git.kernel.org/stable/c/73a50c636425cb9f7ab647b5a97bd14dd5610076"},{"url":"https://git.kernel.org/stable/c/46884c0f92708f1d218fc94d88800227a19b52f8"},{"url":"https://git.kernel.org/stable/c/6436e1b5331b1aebf905c13e0880a37032719b75"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:11:43.531Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}