310 lines
16 KiB
JSON
310 lines
16 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-2026-72005",
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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": "2026-08-09T03:40:39.898Z",
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"datePublished": "2026-08-15T05:51:36.005Z",
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"dateUpdated": "2026-10-19T21:09:12.477Z"
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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": "2026-08-17T05:39:22.758Z"
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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\nwifi: rt2x00: avoid full teardown before work setup in probe\n\nrt2x00lib_probe_dev() uses the full rt2x00lib_remove_dev() teardown for\nall probe failures. However, drv_data allocation and workqueue allocation\ncan fail before intf_work, autowakeup_work and sleep_work have been\ninitialized.\n\nDo not enter the full remove path until the probe has reached the point\nwhere those work items are set up. Return directly for drv_data allocation\nfailure, and use a small early cleanup path for workqueue allocation\nfailure.\n\nThis issue was found by our static analysis tool and then confirmed by\nmanual review of rt2x00lib_probe_dev() and rt2x00lib_remove_dev(). The\nearly probe exits should not call a common teardown path that assumes the\nlater work setup has already completed.\n\nA QEMU PoC forced alloc_ordered_workqueue() to fail before the work\ninitializers are reached. The resulting fail path entered\nrt2x00lib_remove_dev(), and DEBUG_OBJECTS reported invalid work drains with\nrt2x00lib_probe_dev() and rt2x00lib_remove_dev() in the stack."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The flaw is in rt2x00 driver probe (rt2x00usb_probe/rt2x00pci_probe/rt2800soc_probe), triggered during device initialization on boot or hotplug, not by remote WiFi frames; worst case is built-in SoC/PCI WiFi on internet-facing routers/APs under local memory pressure.\nAC:L - An attacker can reliably force kzalloc or alloc_ordered_workqueue() to fail with a memory exhaustion attack and retry on reboot or USB reinsertion; success does not depend on uncontrollable layout or victim-only timing beyond attacker-driven ENOMEM.\nPR:L - Triggering probe-time ENOMEM requires only an unprivileged local process to exhaust memory during driver initialization; no CAP_NET_ADMIN, real root, or user-namespace capability is needed to reach the vulnerable teardown path.\nUI:N - Exploitation does not require a victim to click, mount, or configure anything; probe runs automatically at boot or on device hotplug while the attacker maintains memory pressure.\nS:U - Impact is confined to kernel/driver state on the host being probed; it is not a VM escape, sandbox breakout, or cross-authority boundary crossing beyond standard local kernel compromise.\nC:H - rt2x00lib_remove_dev() calls cancel_work_sync/cancel_delayed_work_sync and hrtimer_cancel on objects never initialized by INIT_WORK/hrtimer_setup, corrupting workqueue/timer metadata and creating undefined behavior that can expose kernel memory.\nI:H - Invalid cancel/flush/drain of uninitialized work items and tasklet_kill on uninitialized tasklets can corrupt adjacent kernel heap objects and workqueue state, plausibly yielding write primitives beyond a simple denial of service.\nA:H - A QEMU PoC forcing alloc_ordered_workqueue() failure hit DEBUG_OBJECTS invalid work drains in rt2x00lib_remove_dev(); this teardown path can WARN/OOPS/panic the kernel during probe failure cleanup."
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}
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]
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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/net/wireless/ralink/rt2x00/rt2x00dev.c"
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],
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"versions": [
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{
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"version": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
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"lessThan": "8b58d1f1356df6a7d2de3f55bb665b18b04ffda0",
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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": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
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"lessThan": "59afe6148927395cf86f9429900e029a48b1d42b",
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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": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
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"lessThan": "3c0427d719bddb33caf18ff4ffb77cb47de7eb00",
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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": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
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"lessThan": "eb7474d0253bb2de4793e1d3ce833e8564bbe732",
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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": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
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"lessThan": "66bd9b1a72de7c2f5141b02d796048aafaed8a49",
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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": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
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"lessThan": "816559409e340acaa5c9d868291dab30d8c80263",
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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": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
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"lessThan": "56994852d704535ea354a4627ca667b1b4fa0deb",
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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": "0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2",
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"lessThan": "536fb3d739d75a03cb318c0c6fe799425cfea501",
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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/net/wireless/ralink/rt2x00/rt2x00dev.c"
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],
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"versions": [
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{
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"version": "2.6.39",
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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": "2.6.39",
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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": "5.10.261",
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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": "5.15.212",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.97",
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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": "6.18.40",
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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": "7.1.5",
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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": "2.6.39",
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"versionEndExcluding": "5.10.261"
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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": "2.6.39",
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"versionEndExcluding": "5.15.212"
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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": "2.6.39",
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"versionEndExcluding": "6.1.178"
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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": "2.6.39",
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"versionEndExcluding": "6.6.145"
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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": "2.6.39",
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"versionEndExcluding": "6.12.97"
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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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"versionEndExcluding": "6.18.40"
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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": "2.6.39",
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"versionEndExcluding": "7.1.5"
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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": "2.6.39",
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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/8b58d1f1356df6a7d2de3f55bb665b18b04ffda0"
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},
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{
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"url": "https://git.kernel.org/stable/c/59afe6148927395cf86f9429900e029a48b1d42b"
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},
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{
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"url": "https://git.kernel.org/stable/c/3c0427d719bddb33caf18ff4ffb77cb47de7eb00"
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},
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{
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"url": "https://git.kernel.org/stable/c/eb7474d0253bb2de4793e1d3ce833e8564bbe732"
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},
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{
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"url": "https://git.kernel.org/stable/c/66bd9b1a72de7c2f5141b02d796048aafaed8a49"
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},
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{
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"url": "https://git.kernel.org/stable/c/816559409e340acaa5c9d868291dab30d8c80263"
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},
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{
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"url": "https://git.kernel.org/stable/c/56994852d704535ea354a4627ca667b1b4fa0deb"
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},
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{
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"url": "https://git.kernel.org/stable/c/536fb3d739d75a03cb318c0c6fe799425cfea501"
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}
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],
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"title": "wifi: rt2x00: avoid full teardown before work setup in probe",
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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-2026-72005",
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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": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:49:49.454298Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-404",
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"description": "CWE-404 Improper Resource Shutdown or Release"
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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": "2026-10-19T21:09:12.477Z"
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}
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}
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]
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}
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} |