177 lines
10 KiB
JSON
177 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-2025-38268",
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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": "2025-04-16T04:51:23.998Z",
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"datePublished": "2025-07-10T07:41:51.217Z",
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"dateUpdated": "2026-11-05T21:02:29.814Z"
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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": "2026-05-11T21:24:35.303Z"
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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: typec: tcpm: move tcpm_queue_vdm_unlocked to asynchronous work\n\nA state check was previously added to tcpm_queue_vdm_unlocked to\nprevent a deadlock where the DisplayPort Alt Mode driver would be\nexecuting work and attempting to grab the tcpm_lock while the TCPM\nwas holding the lock and attempting to unregister the altmode, blocking\non the altmode driver's cancel_work_sync call.\n\nBecause the state check isn't protected, there is a small window\nwhere the Alt Mode driver could determine that the TCPM is\nin a ready state and attempt to grab the lock while the\nTCPM grabs the lock and changes the TCPM state to one that\ncauses the deadlock. The callstack is provided below:\n\n[110121.667392][ C7] Call trace:\n[110121.667396][ C7] __switch_to+0x174/0x338\n[110121.667406][ C7] __schedule+0x608/0x9f0\n[110121.667414][ C7] schedule+0x7c/0xe8\n[110121.667423][ C7] kernfs_drain+0xb0/0x114\n[110121.667431][ C7] __kernfs_remove+0x16c/0x20c\n[110121.667436][ C7] kernfs_remove_by_name_ns+0x74/0xe8\n[110121.667442][ C7] sysfs_remove_group+0x84/0xe8\n[110121.667450][ C7] sysfs_remove_groups+0x34/0x58\n[110121.667458][ C7] device_remove_groups+0x10/0x20\n[110121.667464][ C7] device_release_driver_internal+0x164/0x2e4\n[110121.667475][ C7] device_release_driver+0x18/0x28\n[110121.667484][ C7] bus_remove_device+0xec/0x118\n[110121.667491][ C7] device_del+0x1e8/0x4ac\n[110121.667498][ C7] device_unregister+0x18/0x38\n[110121.667504][ C7] typec_unregister_altmode+0x30/0x44\n[110121.667515][ C7] tcpm_reset_port+0xac/0x370\n[110121.667523][ C7] tcpm_snk_detach+0x84/0xb8\n[110121.667529][ C7] run_state_machine+0x4c0/0x1b68\n[110121.667536][ C7] tcpm_state_machine_work+0x94/0xe4\n[110121.667544][ C7] kthread_worker_fn+0x10c/0x244\n[110121.667552][ C7] kthread+0x104/0x1d4\n[110121.667557][ C7] ret_from_fork+0x10/0x20\n\n[110121.667689][ C7] Workqueue: events dp_altmode_work\n[110121.667697][ C7] Call trace:\n[110121.667701][ C7] __switch_to+0x174/0x338\n[110121.667710][ C7] __schedule+0x608/0x9f0\n[110121.667717][ C7] schedule+0x7c/0xe8\n[110121.667725][ C7] schedule_preempt_disabled+0x24/0x40\n[110121.667733][ C7] __mutex_lock+0x408/0xdac\n[110121.667741][ C7] __mutex_lock_slowpath+0x14/0x24\n[110121.667748][ C7] mutex_lock+0x40/0xec\n[110121.667757][ C7] tcpm_altmode_enter+0x78/0xb4\n[110121.667764][ C7] typec_altmode_enter+0xdc/0x10c\n[110121.667769][ C7] dp_altmode_work+0x68/0x164\n[110121.667775][ C7] process_one_work+0x1e4/0x43c\n[110121.667783][ C7] worker_thread+0x25c/0x430\n[110121.667789][ C7] kthread+0x104/0x1d4\n[110121.667794][ C7] ret_from_fork+0x10/0x20\n\nChange tcpm_queue_vdm_unlocked to queue for tcpm_queue_vdm_work,\nwhich can perform the state check while holding the TCPM lock\nwhile the Alt Mode lock is no longer held. This requires a new\nstruct to hold the vdm data, altmode_vdm_event."
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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/typec/tcpm/tcpm.c"
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],
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"versions": [
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{
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"version": "cdc9946ea6377e8e214b135ccc308c5e514ba25f",
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"lessThan": "7bdd712abefbec79176ab412d8c623e755c5d0ba",
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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": "cdc9946ea6377e8e214b135ccc308c5e514ba25f",
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"lessThan": "1970d34b48cbeceb0c765984c9a6bb204c77f16a",
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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": "cdc9946ea6377e8e214b135ccc308c5e514ba25f",
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"lessThan": "324d45e53f1a36c88bc649dc39e0c8300a41be0a",
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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/typec/tcpm/tcpm.c"
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],
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"versions": [
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{
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"version": "6.9",
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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": "6.9",
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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": "6.12.34",
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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": "6.15.3",
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"lessThanOrEqual": "6.15.*",
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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": "6.16",
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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": "6.9",
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"versionEndExcluding": "6.12.34"
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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": "6.9",
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"versionEndExcluding": "6.15.3"
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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": "6.9",
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"versionEndExcluding": "6.16"
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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/7bdd712abefbec79176ab412d8c623e755c5d0ba"
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},
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{
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"url": "https://git.kernel.org/stable/c/1970d34b48cbeceb0c765984c9a6bb204c77f16a"
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},
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{
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"url": "https://git.kernel.org/stable/c/324d45e53f1a36c88bc649dc39e0c8300a41be0a"
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}
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],
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"title": "usb: typec: tcpm: move tcpm_queue_vdm_unlocked to asynchronous 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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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2025-38268",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-05T20:52:43.986516Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-05T21:02:29.814Z"
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}
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}
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]
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}
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} |