159 lines
8.9 KiB
JSON
159 lines
8.9 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-2026-93225",
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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": "2026-09-17T16:02:15.094Z",
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"datePublished": "2026-09-24T15:21:12.635Z",
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"dateUpdated": "2026-10-19T09:07:36.752Z"
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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": "2026-10-19T09:07:36.752Z"
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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: fsl-imx8mq-usb: fix typec switch leak on probe error path\n\nIf probe fails after imx95_usb_phy_get_tca() succeeds, the typec\nswitch leaks because the only cleanup path was in .remove(), which\nnever runs on probe failure.\n\nUse devm_add_action_or_reset() so the switch is cleaned up on both\nprobe failure and driver removal. The imx95_usb_phy_put_tca() is no\nlonger needed, it will be removed in .remove() too."
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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:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.4,
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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 leak is created in imx8mq_usb_phy_probe() after tca_blk_get_typec_switch() calls typec_switch_register(); the entry point is platform_probe of DT node usb3_phy@4c1f0040 (compatible fsl,imx95-usb-phy). No USB or network protocol message carries the trigger; this is a probe error-path leak.\nAC:H - After imx95_usb_phy_get_tca() succeeds, the only later failure is ENOMEM from kzalloc/devres_alloc in __devm_of_phy_provider_register(); imx8m_get_phy_tuning_data() cannot fail. That GFP_KERNEL failure is not attacker-controlled, and suppress_bind_attrs=true blocks sysfs rebind of imx8mq-usb-phy.\nPR:N - imx8mq_usb_phy_probe() has no capable() check. PHY_FSL_IMX8MQ_USB defaults y on ARCH_MXC&&ARM64, so of_platform populate binds usb3_phy@4c1f0040 during kernel init on i.MX95 boards that set status=okay. Sysfs bind is not required and is disabled by suppress_bind_attrs.\nUI:N - of_platform probe of usb3_phy and a later tcpci/tcpm_register_port() of ptn5110@50 (imx95-19x19-evk typec_con) run unattended at boot. typec_register_port() calls typec_switch_get() without a mount, open, or USB-C cable plug.\nS:U - The leaked typec_switch_dev, the devres free of imx8mq_usb_phy, and tca_blk_typec_switch_set() run in the host kernel PHY/Type-C stack. This is not a KVM/Xen guest-to-host escape or an IOMMU/DMA bypass.\nC:H - typec_switch_register() stores drvdata=imx_phy; probe failure then frees that imx8mq_usb_phy via devres while the class device remains. tca_blk_typec_switch_set() reads the freed object via typec_switch_get_drvdata() when TCPM's tcpm_mux_set() calls typec_set_orientation().\nI:H - The same dangling drvdata is used by tca_blk_typec_switch_set() to clk_prepare_enable(imx_phy->clk) and by tca_blk_orientation_set() to writel() TCA_GCFG/TCA_SYSMODE_CFG through tca->base; reclaiming the freed imx8mq_usb_phy/tca_blk slab is a write and control-flow primitive.\nA:H - Once probe fails, fwnode_typec_switch_get() does try_module_get(sw_dev->dev.parent->driver->owner) with parent->driver NULL, or tca_blk_typec_switch_set() dereferences the freed imx_phy; either path oopses the i.MX95 host."
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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/freescale/phy-fsl-imx8mq-usb.c"
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],
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"versions": [
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{
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"version": "b58f0f86fd6156d7b084257f5c91ceaf7d760927",
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"lessThan": "f1b7b2c7ffa9711d1298f52790b377fe02efc1db",
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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": "b58f0f86fd6156d7b084257f5c91ceaf7d760927",
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"lessThan": "84646f5b945a370f6999eed59a334387b0abc282",
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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": "b58f0f86fd6156d7b084257f5c91ceaf7d760927",
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"lessThan": "87a1805b1c346b092c34f96f3806f207792910e1",
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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/freescale/phy-fsl-imx8mq-usb.c"
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],
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"versions": [
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{
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"version": "6.15",
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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": "6.15",
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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": "6.18.50",
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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": "7.2.4",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "6.15",
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"versionEndExcluding": "6.18.50"
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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": "6.15",
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"versionEndExcluding": "7.2.4"
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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": "6.15",
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"versionEndExcluding": "7.3"
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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/f1b7b2c7ffa9711d1298f52790b377fe02efc1db"
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},
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{
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"url": "https://git.kernel.org/stable/c/84646f5b945a370f6999eed59a334387b0abc282"
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},
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{
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"url": "https://git.kernel.org/stable/c/87a1805b1c346b092c34f96f3806f207792910e1"
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}
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],
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"title": "phy: fsl-imx8mq-usb: fix typec switch leak on probe error path",
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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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} |