{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2026-64573", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64573", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-08-05T08:08:09.669Z", "updatedAt": "2026-08-19T16:28:52.002Z", "importedAt": "2026-10-24T01:58:25.636Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "Bluetooth: qca: fix NVM tag length underflow in TLV parser", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: qca: fix NVM tag length underflow in TLV parser\n\nIn the TLV_TYPE_NVM branch of qca_tlv_check_data() the tag loop bound is\n\"while (idx < length - sizeof(struct tlv_type_nvm))\". \"length\" is a signed\nint from the firmware TLV header and sizeof(struct tlv_type_nvm) is a\nsize_t (12), so \"length\" is converted to size_t and any firmware-supplied\n\"length\" < 12 makes the subtraction wrap to a huge value. The loop body\nthen reads a 12-byte struct tlv_type_nvm past the end of the short\nvmalloc'd firmware buffer (and the EDL_TAG_ID_* handlers can write past it).\n\nRewrite the bound as \"idx + sizeof(struct tlv_type_nvm) <= length\"; both\noperands are non-negative, so it no longer underflows and a \"length\" too\nsmall for one record correctly skips the loop.\n\n BUG: KASAN: vmalloc-out-of-bounds in qca_download_firmware.isra.0 (drivers/bluetooth/btqca.c:421)\n Read of size 2 at addr ffffc900000e5004 by task kworker/u9:0/52\n Workqueue: hci0 hci_power_on\n Call Trace:\n ...\n kasan_report (mm/kasan/report.c:595)\n qca_download_firmware.isra.0 (drivers/bluetooth/btqca.c:421 drivers/bluetooth/btqca.c:617)\n qca_uart_setup (drivers/bluetooth/btqca.c:948)\n qca_setup (drivers/bluetooth/hci_qca.c:2029)\n hci_uart_setup (drivers/bluetooth/hci_ldisc.c:438)\n hci_dev_open_sync (net/bluetooth/hci_sync.c:5227)\n hci_power_on (net/bluetooth/hci_core.c:920)\n process_one_work (kernel/workqueue.c:3322)\n worker_thread (kernel/workqueue.c:3486)\n kthread (kernel/kthread.c:436)\n ret_from_fork (arch/x86/kernel/process.c:158)\n ret_from_fork_asm (arch/x86/entry/entry_64.S:245)", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "ed53949cc92e28aaa3463d246942bda1fbb7f307", "status": "affected", "versionType": "git", "lessThan": "a7ee11441d71ab036a705d110a415421f5a4a898" }, { "version": "1caceadfb50432dbf6d808796cb6c34ebb6d662c", "status": "affected", "versionType": "git", "lessThan": "5d34e537755d2f9eba2d4e54d70126f987ef20b4" }, { "version": "427281f9498ed614f9aabc80e46ec077c487da6d", "status": "affected", "versionType": "git", "lessThan": "70354dbb5f72d9a76da7b031de3cbaf6c7d8fc24" }, { "version": "2e4edfa1e2bd821a317e7d006517dcf2f3fac68d", "status": "affected", "versionType": "git", "lessThan": "59fd2f075bca94f030c7c78e94878ea0803d7690" }, { "version": "2e4edfa1e2bd821a317e7d006517dcf2f3fac68d", "status": "affected", "versionType": "git", "lessThan": "a087ed960fce54e9302796229e9d545bbc9bcd4a" }, { "version": "2e4edfa1e2bd821a317e7d006517dcf2f3fac68d", "status": "affected", "versionType": "git", "lessThan": "4fcfb5b2c736785464ff9745f94c6726c5ee2d85" }, { "version": "2e4edfa1e2bd821a317e7d006517dcf2f3fac68d", "status": "affected", "versionType": "git", "lessThan": "c90164ca0f7036942ba088eb7ea8d3f6c2352020" }, { "version": "02f05ed44b71152d5e11d29be28aed91c0489b4e", "status": "affected", "versionType": "git" }, { "version": "5.15.159", "status": "affected", "versionType": "semver", "lessThan": "5.15.216" }, { "version": "6.1.91", "status": "affected", "versionType": "semver", "lessThan": "6.1.183" }, { "version": "6.6.31", "status": "affected", "versionType": "semver", "lessThan": "6.6.148" }, { "version": "6.8.10", "status": "affected", "versionType": "semver", "lessThan": "6.9" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.9", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.9" }, { "version": "5.15.216", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.183", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.148", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.101", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.42", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "7.1.6", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "7.1.*" }, { "version": "7.2", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }