185 lines
9.0 KiB
JSON
185 lines
9.0 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-2026-68126",
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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": "2026-07-30T09:28:09.369Z",
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"datePublished": "2026-08-10T11:58:47.478Z",
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"dateUpdated": "2026-08-17T04:59:17.559Z"
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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": "2026-08-17T04:59:17.559Z"
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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\nmac802154: hold an interface reference across the scan worker\n\nmac802154_scan_worker() captures the scanning sub-interface under RCU\nand then keeps dereferencing sdata->dev after rcu_read_unlock() and\noutside the rtnl -- in the failure traces, in\nmac802154_transmit_beacon_req() (skb->dev = sdata->dev), and in the\nend_scan cleanup. Nothing keeps that netdev alive across the worker\niteration.\n\nA concurrent DEL_INTERFACE or PHY removal can unregister the interface\nonce the worker drops the rtnl between its two drv_set_channel()\nsections. unregister_netdevice() frees the netdev asynchronously from\nnetdev_run_todo() with the rtnl already dropped, so neither holding the\nrtnl nor the per-PHY IEEE802154_IS_SCANNING flag prevents a stale worker\niteration from dereferencing the freed netdev -- a KASAN\nslab-use-after-free, reachable by racing TRIGGER_SCAN against\nDEL_INTERFACE (both CAP_NET_ADMIN).\n\nPin the netdev with netdev_hold() while the RCU read lock is still held,\nand release it at every worker exit."
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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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"net/mac802154/scan.c"
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],
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"versions": [
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{
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"version": "57588c71177f0bfc08509c2c3a9bfe32850c0786",
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"lessThan": "bd7110f0caa32426140ff302a209c53294ef2cfd",
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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": "57588c71177f0bfc08509c2c3a9bfe32850c0786",
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"lessThan": "dd4754194a706163294b6141460101b99082c8c7",
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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": "57588c71177f0bfc08509c2c3a9bfe32850c0786",
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"lessThan": "59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b",
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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": "57588c71177f0bfc08509c2c3a9bfe32850c0786",
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"lessThan": "5f303f622f6bb8907c405e5123a0ab0f70fb0065",
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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": "57588c71177f0bfc08509c2c3a9bfe32850c0786",
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"lessThan": "234e5e898b713bc0b3a631b6f002897f43d046c8",
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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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"net/mac802154/scan.c"
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],
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"versions": [
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{
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"version": "6.3",
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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": "6.3",
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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": "6.6.148",
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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": "6.12.101",
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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": "6.18.42",
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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": "7.1.6",
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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": "6.3",
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"versionEndExcluding": "6.6.148"
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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": "6.3",
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"versionEndExcluding": "6.12.101"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.3",
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"versionEndExcluding": "6.18.42"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.3",
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"versionEndExcluding": "7.1.6"
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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": "6.3",
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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/bd7110f0caa32426140ff302a209c53294ef2cfd"
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},
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{
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"url": "https://git.kernel.org/stable/c/dd4754194a706163294b6141460101b99082c8c7"
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},
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{
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"url": "https://git.kernel.org/stable/c/59c1d5463b7bc5a2cdaae27108d1dfd67edc7d1b"
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},
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{
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"url": "https://git.kernel.org/stable/c/5f303f622f6bb8907c405e5123a0ab0f70fb0065"
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},
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{
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"url": "https://git.kernel.org/stable/c/234e5e898b713bc0b3a631b6f002897f43d046c8"
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}
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],
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"title": "mac802154: hold an interface reference across the scan worker",
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} |