{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47413","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T14:58:30.818Z","datePublished":"2024-05-21T15:04:04.060Z","dateUpdated":"2025-05-04T07:10:24.640Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:10:24.640Z"},"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":"746f316b753a83e366bfc5f936cbf0d72d1c2d1d","lessThan":"b3265b88e83b16c7be762fa5fb7e0632bce0002c","status":"affected","versionType":"git"},{"version":"746f316b753a83e366bfc5f936cbf0d72d1c2d1d","lessThan":"66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b","status":"affected","versionType":"git"},{"version":"746f316b753a83e366bfc5f936cbf0d72d1c2d1d","lessThan":"8253a34bfae3278baca52fc1209b7c29270486ca","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":"semver"},{"version":"5.10.73","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.14.12","lessThanOrEqual":"5.14.*","status":"unaffected","versionType":"semver"},{"version":"5.15","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":"5.8","versionEndExcluding":"5.10.73"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.14.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.15"}]}]}],"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-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-11T17:27:34.761405Z","id":"CVE-2021-47413","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-11T17:27:45.884Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:39:59.295Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/b3265b88e83b16c7be762fa5fb7e0632bce0002c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/66dd03b10e1c0b2fae006c6e34c18ea8ee033e7b","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/8253a34bfae3278baca52fc1209b7c29270486ca","tags":["x_transferred"]}]}]}}