206 lines
11 KiB
JSON
206 lines
11 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-74441",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-08-15T05:44:03.897Z",
|
|
"datePublished": "2026-08-15T12:26:49.359Z",
|
|
"dateUpdated": "2026-08-23T12:47:17.900Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-08-23T12:47:17.900Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: Fix race condition and ordering in port unregistration\n\nA synchronization issue exists during port unregistration where pending\npartner work items can race against workqueue destruction, leading to\nuse-after-free conditions:\n\n cros_ec_ucsi cros_ec_ucsi.3.auto: error -ETIMEDOUT: PPM init failed\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n RIP: 0010:__queue_work+0x83/0x4a0\n Call Trace:\n <IRQ>\n __cfi_delayed_work_timer_fn+0x10/0x10\n run_timer_softirq+0x3b6/0xbd0\n sched_clock_cpu+0xc/0x110\n irq_exit_rcu+0x18d/0x330\n fred_sysvec_apic_timer_interrupt+0x5e/0x80\n\nFix this by ensuring strict ordering and proper serialization during\nteardown:\n\n1. Move ucsi_unregister_partner() to the beginning of the teardown\nsequence and protect it under the connector mutex lock.\n2. Ensure all pending partner tasks are explicitly flushed and finished\nbefore the workqueue is destroyed.\n3. Switch from mod_delayed_work() to a cancel_delayed_work() and\nqueue_delayed_work() sequence. This guarantees that items currently marked\nas pending won't be scheduled an additional time, preventing a double\nrelease of resources which leads to the following crash:\n\n Oops: general protection fault, probably for non-canonical address\n 0xdead000000000122: 0000 [#1] SMP NOPTI\n Workqueue: cros_ec_ucsi.3.auto-con2 ucsi_poll_worker\n RIP: 0010:ucsi_poll_worker+0x65/0x1e0\n Call Trace:\n <TASK>\n process_scheduled_works+0x218/0x6d0\n worker_thread+0x188/0x3f0\n __cfi_worker_thread+0x10/0x10\n kthread+0x226/0x2a0\n\nTo ensure these rules are applied identically across both the normal\nteardown and the ucsi_init() error paths, consolidate the cleanup logic\ninto a new helper, ucsi_unregister_port()."
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/usb/typec/ucsi/ucsi.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "b9aa02ca39a49740926c2c450a1505a4a0f8954a",
|
|
"lessThan": "7b63c680ff605f60f056e5f2c323f1a602aee182",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "b9aa02ca39a49740926c2c450a1505a4a0f8954a",
|
|
"lessThan": "07f8aaffee705e552c1f723ac8bf7eb137ad59c2",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "b9aa02ca39a49740926c2c450a1505a4a0f8954a",
|
|
"lessThan": "11483d80267db97fbe49f2df66385434256cc3b0",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "b9aa02ca39a49740926c2c450a1505a4a0f8954a",
|
|
"lessThan": "3f7b3728dd9011c915cbeaea77274ebe8366550d",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "b9aa02ca39a49740926c2c450a1505a4a0f8954a",
|
|
"lessThan": "bc7a0f721123ea260a42f1ded06dab844ba49434",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "b9aa02ca39a49740926c2c450a1505a4a0f8954a",
|
|
"lessThan": "7aa7d4bf9d3fa9a6a47b640ad103ab433b7ff261",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/usb/typec/ucsi/ucsi.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.16",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.16",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.184",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.151",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.103",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.44",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.1.8",
|
|
"lessThanOrEqual": "7.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.2",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.16",
|
|
"versionEndExcluding": "6.1.184"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.16",
|
|
"versionEndExcluding": "6.6.151"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.16",
|
|
"versionEndExcluding": "6.12.103"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.16",
|
|
"versionEndExcluding": "6.18.44"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.16",
|
|
"versionEndExcluding": "7.1.8"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.16",
|
|
"versionEndExcluding": "7.2"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/7b63c680ff605f60f056e5f2c323f1a602aee182"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/07f8aaffee705e552c1f723ac8bf7eb137ad59c2"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/11483d80267db97fbe49f2df66385434256cc3b0"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/3f7b3728dd9011c915cbeaea77274ebe8366550d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/bc7a0f721123ea260a42f1ded06dab844ba49434"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/7aa7d4bf9d3fa9a6a47b640ad103ab433b7ff261"
|
|
}
|
|
],
|
|
"title": "usb: typec: ucsi: Fix race condition and ordering in port unregistration",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
}
|
|
}
|
|
} |