340 lines
17 KiB
JSON
340 lines
17 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-2021-47269",
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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": "2024-05-21T13:27:52.127Z",
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"datePublished": "2024-05-21T14:19:59.207Z",
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"dateUpdated": "2026-05-11T13:51:14.532Z"
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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": "2026-05-11T13:51:14.532Z"
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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\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 ]---"
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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/usb/dwc3/ep0.c"
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],
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"versions": [
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{
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"version": "6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e",
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"lessThan": "96b74a99d360235c24052f1d060e64ac53f43528",
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"status": "affected",
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"versionType": "git"
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{
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"version": "6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e",
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"lessThan": "60156089f07e724e4dc8483702d5e1ede4522749",
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"status": "affected",
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},
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{
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"lessThan": "990dc90750772622d44ca2ea6652c521e6f67e16",
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"versionType": "git"
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{
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"version": "6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e",
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"lessThan": "366369b89bedd59b1425386e8d4a18a466e420e4",
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"status": "affected",
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"version": "6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e",
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"lessThan": "470403639114895e2697c766fbe17be8d0e9b67a",
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"status": "affected",
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{
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"version": "6a1e3ef45fb0c4d79cbb5190c8fc59263c630b0e",
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},
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{
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"defaultStatus": "affected",
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"programFiles": [
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"drivers/usb/dwc3/ep0.c"
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],
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"versions": [
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{
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"version": "3.10",
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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": "3.10",
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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": "4.4.273",
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"lessThanOrEqual": "4.4.*",
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"status": "unaffected",
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},
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{
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"version": "4.9.273",
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"lessThanOrEqual": "4.9.*",
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"status": "unaffected",
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},
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{
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"version": "4.14.237",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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},
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{
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"version": "4.19.195",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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},
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{
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"version": "5.4.126",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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},
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{
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"version": "5.10.44",
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"lessThanOrEqual": "5.10.*",
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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": "5.12.11",
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"lessThanOrEqual": "5.12.*",
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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": "5.13",
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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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"title": "usb: dwc3: ep0: fix NULL pointer exception",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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"title": "CVE Program Container",
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{
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"metrics": [
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2021-47269",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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{
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"Technical Impact": "partial"
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"version": "2.0.3",
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"timestamp": "2024-09-10T15:39:44.902872Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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