206 lines
10 KiB
JSON
206 lines
10 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-64409",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-07-19T15:36:31.786Z",
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"datePublished": "2026-07-25T08:50:50.604Z",
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"dateUpdated": "2026-08-17T04:55:07.875Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-17T04:55:07.875Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btmtksdio: fix infinite loop in btmtksdio_txrx_work()\n\nEvery once in a while we see a hung btmtksdio_flush() task:\n\n INFO: task kworker/u17:0:189 blocked for more than 122 seconds.\n __cancel_work_timer+0x3f4/0x460\n cancel_work_sync+0x1c/0x2c\n btmtksdio_flush+0x2c/0x40\n hci_dev_open_sync+0x10c4/0x2190\n [..]\n\nIt all boils down to incorrect time_is_before_jiffies() usage in\nbtmtksdio_txrx_work(). The btmtksdio_txrx_work() loop is expected\nto be terminated if running for longer than 5*HZ. However the\ntimeout check is twisted: time_is_before_jiffies(old_jiffies + 5*HZ)\nevaluates to true when old_jiffies + 5*HZ is in the past i.e. when a\ntimeout has occurred. Using OR with time_is_before_jiffies(txrx_timeout)\nmeans that:\n- before the 5-second timeout: the condition is `int_status || false`,\n so it loops as long as there are pending interrupts.\n- after the 5-second timeout: the condition becomes `int_status || true`,\n which is always true.\n\nWhen the loop becomes infinite btmtksdio_txrx_work() loop never\nterminates and never releases the SDIO host.\n\nFix loop termination condition to actually enforce a 5*HZ timeout."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/bluetooth/btmtksdio.c"
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],
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"versions": [
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{
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"version": "26270bc189ea4b5a8356ec99561357fc87f00b32",
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"lessThan": "f6682c23b6fac4780d297ae4662053d17e58fd52",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "26270bc189ea4b5a8356ec99561357fc87f00b32",
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"lessThan": "466540e045d01fcacf383a5beb8a2dad2fc53a26",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "26270bc189ea4b5a8356ec99561357fc87f00b32",
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"lessThan": "7b429d611060e87752e848851815537963726493",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "26270bc189ea4b5a8356ec99561357fc87f00b32",
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"lessThan": "0039bdde36b23ccf1196635f1d52c5490481544d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "26270bc189ea4b5a8356ec99561357fc87f00b32",
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"lessThan": "0f0a83e26a9c7fd4b243c315ce07161d2496d83d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "26270bc189ea4b5a8356ec99561357fc87f00b32",
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"lessThan": "a257407e2bbbb099ed427719a50563f67fa366d8",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/bluetooth/btmtksdio.c"
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],
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"versions": [
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{
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"version": "5.17",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.17",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.178",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.145",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.96",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.39",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.4",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.17",
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"versionEndExcluding": "6.1.178"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.17",
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"versionEndExcluding": "6.6.145"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.17",
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"versionEndExcluding": "6.12.96"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.17",
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"versionEndExcluding": "6.18.39"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.17",
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"versionEndExcluding": "7.1.4"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.17",
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"versionEndExcluding": "7.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/f6682c23b6fac4780d297ae4662053d17e58fd52"
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},
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{
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"url": "https://git.kernel.org/stable/c/466540e045d01fcacf383a5beb8a2dad2fc53a26"
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},
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{
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"url": "https://git.kernel.org/stable/c/7b429d611060e87752e848851815537963726493"
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},
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{
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"url": "https://git.kernel.org/stable/c/0039bdde36b23ccf1196635f1d52c5490481544d"
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},
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{
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"url": "https://git.kernel.org/stable/c/0f0a83e26a9c7fd4b243c315ce07161d2496d83d"
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},
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{
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"url": "https://git.kernel.org/stable/c/a257407e2bbbb099ed427719a50563f67fa366d8"
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}
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],
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"title": "Bluetooth: btmtksdio: fix infinite loop in btmtksdio_txrx_work()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |