275 lines
14 KiB
JSON
275 lines
14 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-2024-35986",
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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": "2024-05-17T13:50:33.145Z",
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"datePublished": "2024-05-20T09:47:53.074Z",
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"dateUpdated": "2026-08-05T11:31:23.957Z"
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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": "2026-08-05T11:31:23.957Z"
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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\nphy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered\n\nThe power_supply frame-work is not really designed for there to be\nlong living in kernel references to power_supply devices.\n\nSpecifically unregistering a power_supply while some other code has\na reference to it triggers a WARN in power_supply_unregister():\n\n\tWARN_ON(atomic_dec_return(&psy->use_cnt));\n\nFolllowed by the power_supply still getting removed and the\nbacking data freed anyway, leaving the tusb1210 charger-detect code\nwith a dangling reference, resulting in a crash the next time\ntusb1210_get_online() is called.\n\nFix this by only holding the reference in tusb1210_get_online()\nfreeing it at the end of the function. Note this still leaves\na theoretical race window, but it avoids the issue when manually\nrmmod-ing the charger chip driver during development."
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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:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7,
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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 dangling `power_supply` is dereferenced through a local sysfs read of the world-readable `/sys/class/power_supply/tusb1211-charger-detect/online` attribute, or by the driver's own workqueue; there is no network or remote-peer input involved.\nAC:H - The stale reference only becomes dangerous after the bq24190 charger psy is unregistered, which requires a driver unbind (0200 sysfs) or module removal (CAP_SYS_MODULE, unreachable via user namespaces) — a system state the unprivileged attacker cannot induce and must wait for.\nPR:L - Once the charger driver has been detached, any unprivileged local user can trigger the use-after-free by reading the 0444 `online` sysfs attribute exported by the tusb1211-charger-detect power supply.\nUI:N - No victim action is needed for the trigger itself — the attacker's own sysfs read reaches the freed object, and `tusb1210_chg_det_work` hits it autonomously on the next USB charger event.\nS:U - The dangling dereference and its consequences stay within the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Use-after-free of the `bq24190_dev_info` object (and of the module-resident `power_supply_desc` after rmmod) lets an attacker who reclaims the freed slab/module memory steer reads through attacker-controlled pointers, with a value derived from freed memory returned to userspace via the `online` property.\nI:H - The freed object supplies the `desc->get_property` function pointer and the `bdi->dev`/`bdi->regmap` pointers used for subsequent writes, so heap spraying over the freed allocation yields control-flow hijack and write primitives.\nA:H - The unfixed path reliably oopses — the commit describes a crash on the next `tusb1210_get_online()` call, preceded by a `WARN_ON` in `power_supply_unregister()`."
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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/phy/ti/phy-tusb1210.c"
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],
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"versions": [
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{
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"version": "48969a5623ed918713552e2b4f9d391c89b5e838",
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"lessThan": "25b3498485ac281e5851700e33b97f12c9533fd8",
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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": "48969a5623ed918713552e2b4f9d391c89b5e838",
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"lessThan": "73224a5d2180066c7fe05b4656647601ba08d588",
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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": "48969a5623ed918713552e2b4f9d391c89b5e838",
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"lessThan": "9827caa5105fb16d1fae2e75c8d0e4662014b3ca",
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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": "48969a5623ed918713552e2b4f9d391c89b5e838",
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"lessThan": "bf6e4ee5c43690e4c5a8a057bbcd4ff986bed052",
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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/phy/ti/phy-tusb1210.c"
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],
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"versions": [
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{
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"version": "5.18",
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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": "5.18",
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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": "6.1.90",
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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": "6.6.30",
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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": "6.8.9",
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"lessThanOrEqual": "6.8.*",
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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": "6.9",
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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": "5.18",
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"versionEndExcluding": "6.1.90"
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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": "5.18",
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"versionEndExcluding": "6.6.30"
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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": "5.18",
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"versionEndExcluding": "6.8.9"
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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": "5.18",
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"versionEndExcluding": "6.9"
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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/25b3498485ac281e5851700e33b97f12c9533fd8"
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},
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{
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"url": "https://git.kernel.org/stable/c/73224a5d2180066c7fe05b4656647601ba08d588"
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},
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{
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"url": "https://git.kernel.org/stable/c/9827caa5105fb16d1fae2e75c8d0e4662014b3ca"
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},
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{
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"url": "https://git.kernel.org/stable/c/bf6e4ee5c43690e4c5a8a057bbcd4ff986bed052"
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}
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],
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"title": "phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered",
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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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"problemTypes": [
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{
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"descriptions": [
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{
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"type": "CWE",
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"lang": "en",
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"description": "CWE-noinfo Not enough information"
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}
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]
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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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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2024-05-29T18:11:49.424190Z",
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"id": "CVE-2024-35986",
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2024-10-29T20:00:28.396Z"
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}
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},
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{
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"providerMetadata": {
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"shortName": "CVE",
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"dateUpdated": "2024-08-02T03:30:11.621Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/25b3498485ac281e5851700e33b97f12c9533fd8",
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"tags": [
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]
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},
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]
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}
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} |