229 lines
11 KiB
JSON
229 lines
11 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-2025-68282",
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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": "2025-12-16T14:48:05.291Z",
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"datePublished": "2025-12-16T15:06:04.332Z",
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"dateUpdated": "2026-05-11T21:50:08.718Z"
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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": "2026-05-11T21:50:08.718Z"
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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\nusb: gadget: udc: fix use-after-free in usb_gadget_state_work\n\nA race condition during gadget teardown can lead to a use-after-free\nin usb_gadget_state_work(), as reported by KASAN:\n\n BUG: KASAN: invalid-access in sysfs_notify+0x2c/0xd0\n Workqueue: events usb_gadget_state_work\n\nThe fundamental race occurs because a concurrent event (e.g., an\ninterrupt) can call usb_gadget_set_state() and schedule gadget->work\nat any time during the cleanup process in usb_del_gadget().\n\nCommit 399a45e5237c (\"usb: gadget: core: flush gadget workqueue after\ndevice removal\") attempted to fix this by moving flush_work() to after\ndevice_del(). However, this does not fully solve the race, as a new\nwork item can still be scheduled *after* flush_work() completes but\nbefore the gadget's memory is freed, leading to the same use-after-free.\n\nThis patch fixes the race condition robustly by introducing a 'teardown'\nflag and a 'state_lock' spinlock to the usb_gadget struct. The flag is\nset during cleanup in usb_del_gadget() *before* calling flush_work() to\nprevent any new work from being scheduled once cleanup has commenced.\nThe scheduling site, usb_gadget_set_state(), now checks this flag under\nthe lock before queueing the work, thus safely closing the race window."
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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/usb/gadget/udc/core.c",
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"include/linux/usb/gadget.h"
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],
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"versions": [
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{
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"version": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
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"lessThan": "dddc944d65169b552e09cb54e3ed4fbb9ea26416",
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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": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
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"lessThan": "eee16f3ff08e759ea828bdf7dc1c0ef2f22134f5",
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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": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
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"lessThan": "c12a0c3ef815ddd67e47f9c819f9fe822fed5467",
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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": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
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"lessThan": "f02a412c0a18f02f0f91b0a3d9788315a721b7fd",
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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": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
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"lessThan": "10014310193cf6736c1aeb4105c5f4a0818d0c65",
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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": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
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"lessThan": "3b32caa73d135eea8fb9cabb45e9fc64c5a3ecb9",
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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": "5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15",
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"lessThan": "baeb66fbd4201d1c4325074e78b1f557dff89b5b",
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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/usb/gadget/udc/core.c",
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"include/linux/usb/gadget.h"
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],
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"versions": [
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{
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"version": "3.12",
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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": "3.12",
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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": "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": "6.1.159",
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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": "6.6.119",
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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": "6.12.61",
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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": "6.17.11",
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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",
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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": "3.12",
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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": "3.12",
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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": "3.12",
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"versionEndExcluding": "6.1.159"
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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": "3.12",
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"versionEndExcluding": "6.6.119"
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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": "3.12",
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"versionEndExcluding": "6.12.61"
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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": "3.12",
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"versionEndExcluding": "6.17.11"
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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": "3.12",
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"versionEndExcluding": "6.18"
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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/dddc944d65169b552e09cb54e3ed4fbb9ea26416"
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},
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{
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"url": "https://git.kernel.org/stable/c/eee16f3ff08e759ea828bdf7dc1c0ef2f22134f5"
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},
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{
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"url": "https://git.kernel.org/stable/c/c12a0c3ef815ddd67e47f9c819f9fe822fed5467"
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},
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{
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"url": "https://git.kernel.org/stable/c/f02a412c0a18f02f0f91b0a3d9788315a721b7fd"
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},
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{
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"url": "https://git.kernel.org/stable/c/10014310193cf6736c1aeb4105c5f4a0818d0c65"
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},
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{
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"url": "https://git.kernel.org/stable/c/3b32caa73d135eea8fb9cabb45e9fc64c5a3ecb9"
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},
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{
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"url": "https://git.kernel.org/stable/c/baeb66fbd4201d1c4325074e78b1f557dff89b5b"
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}
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],
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"title": "usb: gadget: udc: fix use-after-free in usb_gadget_state_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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} |