{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: chipidea: ci_hdrc_imx: Also search for 'phys' phandle\n\nWhen passing 'phys' in the devicetree to describe the USB PHY phandle\n(which is the recommended way according to\nDocumentation/devicetree/bindings/usb/ci-hdrc-usb2.txt) the\nfollowing NULL pointer dereference is observed on i.MX7 and i.MX8MM:\n\n[    1.489344] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000098\n[    1.498170] Mem abort info:\n[    1.500966]   ESR = 0x96000044\n[    1.504030]   EC = 0x25: DABT (current EL), IL = 32 bits\n[    1.509356]   SET = 0, FnV = 0\n[    1.512416]   EA = 0, S1PTW = 0\n[    1.515569]   FSC = 0x04: level 0 translation fault\n[    1.520458] Data abort info:\n[    1.523349]   ISV = 0, ISS = 0x00000044\n[    1.527196]   CM = 0, WnR = 1\n[    1.530176] [0000000000000098] user address but active_mm is swapper\n[    1.536544] Internal error: Oops: 96000044 [#1] PREEMPT SMP\n[    1.542125] Modules linked in:\n[    1.545190] CPU: 3 PID: 7 Comm: kworker/u8:0 Not tainted 5.14.0-dirty #3\n[    1.551901] Hardware name: Kontron i.MX8MM N801X S (DT)\n[    1.557133] Workqueue: events_unbound deferred_probe_work_func\n[    1.562984] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--)\n[    1.568998] pc : imx7d_charger_detection+0x3f0/0x510\n[    1.573973] lr : imx7d_charger_detection+0x22c/0x510\n\nThis happens because the charger functions check for the phy presence\ninside the imx_usbmisc_data structure (data->usb_phy), but the chipidea\ncore populates the usb_phy passed via 'phys' inside 'struct ci_hdrc'\n(ci->usb_phy) instead.\n\nThis causes the NULL pointer dereference inside imx7d_charger_detection().\n\nFix it by also searching for 'phys' in case 'fsl,usbphy' is not found.\n\nTested on a imx7s-warp board."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/usb/chipidea/ci_hdrc_imx.c"
               ],
               "versions": [
                  {
                     "version": "746f316b753a",
                     "lessThan": "b3265b88e83b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "746f316b753a",
                     "lessThan": "66dd03b10e1c",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "746f316b753a",
                     "lessThan": "8253a34bfae3",
                     "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/chipidea/ci_hdrc_imx.c"
               ],
               "versions": [
                  {
                     "version": "5.8",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.8",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.73",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.14.12",
                     "lessThanOrEqual": "5.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/b3265b88e83b16c7be762fa5fb7e0632bce0002c"
            },
            {
               "url": "https://git.kernel.org/stable/c/66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b"
            },
            {
               "url": "https://git.kernel.org/stable/c/8253a34bfae3278baca52fc1209b7c29270486ca"
            }
         ],
         "title": "usb: chipidea: ci_hdrc_imx: Also search for 'phys' phandle",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47413",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}