mirror of
https://github.com/CVEProject/cvelist.git
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158 lines
9.4 KiB
JSON
158 lines
9.4 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2021-47269",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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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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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "1da177e4c3f4",
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"version_value": "96b74a99d360"
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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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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"versionType": "semver"
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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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"versionType": "semver"
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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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"versionType": "semver"
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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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"versionType": "semver"
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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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"versionType": "semver"
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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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"defaultStatus": "affected"
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}
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}
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]
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}
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}
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]
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}
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}
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]
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}
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},
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"references": {
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"reference_data": [
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{
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"url": "https://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/96b74a99d360235c24052f1d060e64ac53f43528"
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},
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{
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"url": "https://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/60156089f07e724e4dc8483702d5e1ede4522749"
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},
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{
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"url": "https://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/990dc90750772622d44ca2ea6652c521e6f67e16"
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},
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{
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"url": "https://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/bd551e7c85939de2182010273450bfa78c3742fc"
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},
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{
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"url": "https://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/366369b89bedd59b1425386e8d4a18a466e420e4"
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},
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{
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"url": "https://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/470403639114895e2697c766fbe17be8d0e9b67a"
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},
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{
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"url": "https://git.kernel.org/stable/c/788755756dd4a6aba1de479fec20b0fa600e7f19",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/788755756dd4a6aba1de479fec20b0fa600e7f19"
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},
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{
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"url": "https://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/d00889080ab60051627dab1d85831cd9db750e2a"
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}
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]
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},
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"generator": {
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"engine": "bippy-9e1c9544281a"
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}
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} |