{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2021-47269", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T13:27:52.127Z", "datePublished": "2024-05-21T14:19:59.207Z", "dateUpdated": "2024-09-11T17:33:11.229Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:05:00.544Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: ep0: fix NULL pointer exception\n\nThere is no validation of the index from dwc3_wIndex_to_dep() and we might\nbe referring a non-existing ep and trigger a NULL pointer exception. In\ncertain configurations we might use fewer eps and the index might wrongly\nindicate a larger ep index than existing.\n\nBy adding this validation from the patch we can actually report a wrong\nindex back to the caller.\n\nIn our usecase we are using a composite device on an older kernel, but\nupstream might use this fix also. Unfortunately, I cannot describe the\nhardware for others to reproduce the issue as it is a proprietary\nimplementation.\n\n[ 82.958261] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a4\n[ 82.966891] Mem abort info:\n[ 82.969663] ESR = 0x96000006\n[ 82.972703] Exception class = DABT (current EL), IL = 32 bits\n[ 82.978603] SET = 0, FnV = 0\n[ 82.981642] EA = 0, S1PTW = 0\n[ 82.984765] Data abort info:\n[ 82.987631] ISV = 0, ISS = 0x00000006\n[ 82.991449] CM = 0, WnR = 0\n[ 82.994409] user pgtable: 4k pages, 39-bit VAs, pgdp = 00000000c6210ccc\n[ 83.000999] [00000000000000a4] pgd=0000000053aa5003, pud=0000000053aa5003, pmd=0000000000000000\n[ 83.009685] Internal error: Oops: 96000006 [#1] PREEMPT SMP\n[ 83.026433] Process irq/62-dwc3 (pid: 303, stack limit = 0x000000003985154c)\n[ 83.033470] CPU: 0 PID: 303 Comm: irq/62-dwc3 Not tainted 4.19.124 #1\n[ 83.044836] pstate: 60000085 (nZCv daIf -PAN -UAO)\n[ 83.049628] pc : dwc3_ep0_handle_feature+0x414/0x43c\n[ 83.054558] lr : dwc3_ep0_interrupt+0x3b4/0xc94\n\n...\n\n[ 83.141788] Call trace:\n[ 83.144227] dwc3_ep0_handle_feature+0x414/0x43c\n[ 83.148823] dwc3_ep0_interrupt+0x3b4/0xc94\n[ 83.181546] ---[ end trace aac6b5267d84c32f ]---" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/usb/dwc3/ep0.c" ], "versions": [ { "version": "1da177e4c3f4", "lessThan": "96b74a99d360", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "60156089f07e", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "990dc9075077", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "bd551e7c8593", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "366369b89bed", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "470403639114", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "788755756dd4", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f4", "lessThan": "d00889080ab6", "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/dwc3/ep0.c" ], "versions": [ { "version": "4.4.273", "lessThanOrEqual": "4.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.9.273", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.14.237", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.195", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.126", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.44", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.12.11", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528" }, { "url": "https://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749" }, { "url": "https://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16" }, { "url": "https://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc" }, { "url": "https://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4" }, { "url": "https://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a" }, { "url": "https://git.kernel.org/stable/c/788755756dd4a6aba1de479fec20b0fa600e7f19" }, { "url": "https://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a" } ], "title": "usb: dwc3: ep0: fix NULL pointer exception", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:07.981Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/788755756dd4a6aba1de479fec20b0fa600e7f19", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-47269", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T15:39:44.902872Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:11.229Z" } } ] } }