{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-93225", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.094Z", "datePublished": "2026-09-24T15:21:12.635Z", "dateUpdated": "2026-10-19T09:07:36.752Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:07:36.752Z" }, "descriptions": [ { "lang": "en", "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." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.4, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "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." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/phy/freescale/phy-fsl-imx8mq-usb.c" ], "versions": [ { "version": "b58f0f86fd6156d7b084257f5c91ceaf7d760927", "lessThan": "f1b7b2c7ffa9711d1298f52790b377fe02efc1db", "status": "affected", "versionType": "git" }, { "version": "b58f0f86fd6156d7b084257f5c91ceaf7d760927", "lessThan": "84646f5b945a370f6999eed59a334387b0abc282", "status": "affected", "versionType": "git" }, { "version": "b58f0f86fd6156d7b084257f5c91ceaf7d760927", "lessThan": "87a1805b1c346b092c34f96f3806f207792910e1", "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/phy/freescale/phy-fsl-imx8mq-usb.c" ], "versions": [ { "version": "6.15", "status": "affected" }, { "version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.3", "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": "6.15", "versionEndExcluding": "6.18.50" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.2.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/f1b7b2c7ffa9711d1298f52790b377fe02efc1db" }, { "url": "https://git.kernel.org/stable/c/84646f5b945a370f6999eed59a334387b0abc282" }, { "url": "https://git.kernel.org/stable/c/87a1805b1c346b092c34f96f3806f207792910e1" } ], "title": "phy: fsl-imx8mq-usb: fix typec switch leak on probe error path", "x_generator": { "engine": "bippy-1.2.0" } } } }