248 lines
13 KiB
JSON
248 lines
13 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-2025-68258",
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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": "2025-12-16T13:41:40.267Z",
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"datePublished": "2025-12-16T14:45:00.920Z",
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"dateUpdated": "2026-05-11T21:49:53.691Z"
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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": "2026-05-11T21:49:53.691Z"
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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\ncomedi: multiq3: sanitize config options in multiq3_attach()\n\nSyzbot identified an issue [1] in multiq3_attach() that induces a\ntask timeout due to open() or COMEDI_DEVCONFIG ioctl operations,\nspecifically, in the case of multiq3 driver.\n\nThis problem arose when syzkaller managed to craft weird configuration\noptions used to specify the number of channels in encoder subdevice.\nIf a particularly great number is passed to s->n_chan in\nmultiq3_attach() via it->options[2], then multiple calls to\nmultiq3_encoder_reset() at the end of driver-specific attach() method\nwill be running for minutes, thus blocking tasks and affected devices\nas well.\n\nWhile this issue is most likely not too dangerous for real-life\ndevices, it still makes sense to sanitize configuration inputs. Enable\na sensible limit on the number of encoder chips (4 chips max, each\nwith 2 channels) to stop this behaviour from manifesting.\n\n[1] Syzbot crash:\nINFO: task syz.2.19:6067 blocked for more than 143 seconds.\n...\nCall Trace:\n <TASK>\n context_switch kernel/sched/core.c:5254 [inline]\n __schedule+0x17c4/0x4d60 kernel/sched/core.c:6862\n __schedule_loop kernel/sched/core.c:6944 [inline]\n schedule+0x165/0x360 kernel/sched/core.c:6959\n schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7016\n __mutex_lock_common kernel/locking/mutex.c:676 [inline]\n __mutex_lock+0x7e6/0x1350 kernel/locking/mutex.c:760\n comedi_open+0xc0/0x590 drivers/comedi/comedi_fops.c:2868\n chrdev_open+0x4cc/0x5e0 fs/char_dev.c:414\n do_dentry_open+0x953/0x13f0 fs/open.c:965\n vfs_open+0x3b/0x340 fs/open.c:1097\n..."
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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/comedi/drivers/multiq3.c"
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],
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"versions": [
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{
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"version": "77e01cdbad5175f56027fd6fae00bd0fc175651a",
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"lessThan": "f9ff87aac7b37d462246c46d28912d382a8e2ea6",
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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": "77e01cdbad5175f56027fd6fae00bd0fc175651a",
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"lessThan": "4cde9a7e025cc09b88097c70606f6b30c22880f4",
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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": "77e01cdbad5175f56027fd6fae00bd0fc175651a",
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"lessThan": "ad7ed3c9c7b8408e8612697bc43a5441fe386c71",
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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": "77e01cdbad5175f56027fd6fae00bd0fc175651a",
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"lessThan": "049f14557450351750f929ebfff36d849511e132",
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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": "77e01cdbad5175f56027fd6fae00bd0fc175651a",
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"lessThan": "8952bc1973cd54158c35e06bfb8c29ace7375a48",
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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": "77e01cdbad5175f56027fd6fae00bd0fc175651a",
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"lessThan": "8dc2f02d3bada9247f00bfd2e5f61f68c389a0a3",
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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": "77e01cdbad5175f56027fd6fae00bd0fc175651a",
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"lessThan": "543f4c380c2e1f35e60528df7cb54705cda7fee3",
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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": "77e01cdbad5175f56027fd6fae00bd0fc175651a",
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"lessThan": "f24c6e3a39fa355dabfb684c9ca82db579534e72",
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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/comedi/drivers/multiq3.c"
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],
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"versions": [
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{
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"version": "2.6.30",
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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": "2.6.30",
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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": "5.10.248",
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"lessThanOrEqual": "5.10.*",
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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": "5.15.198",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.160",
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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": "6.6.120",
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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": "6.12.62",
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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": "6.17.12",
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"lessThanOrEqual": "6.17.*",
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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": "6.18.1",
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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": "6.19",
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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": "2.6.30",
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"versionEndExcluding": "5.10.248"
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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": "2.6.30",
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"versionEndExcluding": "5.15.198"
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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": "2.6.30",
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"versionEndExcluding": "6.1.160"
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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": "2.6.30",
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"versionEndExcluding": "6.6.120"
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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": "2.6.30",
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"versionEndExcluding": "6.12.62"
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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": "2.6.30",
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"versionEndExcluding": "6.17.12"
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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": "2.6.30",
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"versionEndExcluding": "6.18.1"
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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": "2.6.30",
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"versionEndExcluding": "6.19"
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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/f9ff87aac7b37d462246c46d28912d382a8e2ea6"
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},
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{
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"url": "https://git.kernel.org/stable/c/4cde9a7e025cc09b88097c70606f6b30c22880f4"
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},
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{
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"url": "https://git.kernel.org/stable/c/ad7ed3c9c7b8408e8612697bc43a5441fe386c71"
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},
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{
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"url": "https://git.kernel.org/stable/c/049f14557450351750f929ebfff36d849511e132"
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},
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{
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"url": "https://git.kernel.org/stable/c/8952bc1973cd54158c35e06bfb8c29ace7375a48"
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},
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{
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"url": "https://git.kernel.org/stable/c/8dc2f02d3bada9247f00bfd2e5f61f68c389a0a3"
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},
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{
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"url": "https://git.kernel.org/stable/c/543f4c380c2e1f35e60528df7cb54705cda7fee3"
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},
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{
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"url": "https://git.kernel.org/stable/c/f24c6e3a39fa355dabfb684c9ca82db579534e72"
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}
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],
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"title": "comedi: multiq3: sanitize config options in multiq3_attach()",
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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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} |