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vuln-cve/data/2021/47xxx/CVE-2021-47023.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2021-47023",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2024-02-27T18:42:55.959Z",
"datePublished": "2024-02-28T08:13:35.861Z",
"dateUpdated": "2026-05-11T13:46:28.016Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T13:46:28.016Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: marvell: prestera: fix port event handling on init\n\nFor some reason there might be a crash during ports creation if port\nevents are handling at the same time because fw may send initial\nport event with down state.\n\nThe crash points to cancel_delayed_work() which is called when port went\nis down. Currently I did not find out the real cause of the issue, so\nfixed it by cancel port stats work only if previous port's state was up\n& runnig.\n\nThe following is the crash which can be triggered:\n\n[ 28.311104] Unable to handle kernel paging request at virtual address\n000071775f776600\n[ 28.319097] Mem abort info:\n[ 28.321914] ESR = 0x96000004\n[ 28.324996] EC = 0x25: DABT (current EL), IL = 32 bits\n[ 28.330350] SET = 0, FnV = 0\n[ 28.333430] EA = 0, S1PTW = 0\n[ 28.336597] Data abort info:\n[ 28.339499] ISV = 0, ISS = 0x00000004\n[ 28.343362] CM = 0, WnR = 0\n[ 28.346354] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000100bf7000\n[ 28.352842] [000071775f776600] pgd=0000000000000000,\np4d=0000000000000000\n[ 28.359695] Internal error: Oops: 96000004 [#1] PREEMPT SMP\n[ 28.365310] Modules linked in: prestera_pci(+) prestera\nuio_pdrv_genirq\n[ 28.372005] CPU: 0 PID: 1291 Comm: kworker/0:1H Not tainted\n5.11.0-rc4 #1\n[ 28.378846] Hardware name: DNI AmazonGo1 A7040 board (DT)\n[ 28.384283] Workqueue: prestera_fw_wq prestera_fw_evt_work_fn\n[prestera_pci]\n[ 28.391413] pstate: 60000085 (nZCv daIf -PAN -UAO -TCO BTYPE=--)\n[ 28.397468] pc : get_work_pool+0x48/0x60\n[ 28.401442] lr : try_to_grab_pending+0x6c/0x1b0\n[ 28.406018] sp : ffff80001391bc60\n[ 28.409358] x29: ffff80001391bc60 x28: 0000000000000000\n[ 28.414725] x27: ffff000104fc8b40 x26: ffff80001127de88\n[ 28.420089] x25: 0000000000000000 x24: ffff000106119760\n[ 28.425452] x23: ffff00010775dd60 x22: ffff00010567e000\n[ 28.430814] x21: 0000000000000000 x20: ffff80001391bcb0\n[ 28.436175] x19: ffff00010775deb8 x18: 00000000000000c0\n[ 28.441537] x17: 0000000000000000 x16: 000000008d9b0e88\n[ 28.446898] x15: 0000000000000001 x14: 00000000000002ba\n[ 28.452261] x13: 80a3002c00000002 x12: 00000000000005f4\n[ 28.457622] x11: 0000000000000030 x10: 000000000000000c\n[ 28.462985] x9 : 000000000000000c x8 : 0000000000000030\n[ 28.468346] x7 : ffff800014400000 x6 : ffff000106119758\n[ 28.473708] x5 : 0000000000000003 x4 : ffff00010775dc60\n[ 28.479068] x3 : 0000000000000000 x2 : 0000000000000060\n[ 28.484429] x1 : 000071775f776600 x0 : ffff00010775deb8\n[ 28.489791] Call trace:\n[ 28.492259] get_work_pool+0x48/0x60\n[ 28.495874] cancel_delayed_work+0x38/0xb0\n[ 28.500011] prestera_port_handle_event+0x90/0xa0 [prestera]\n[ 28.505743] prestera_evt_recv+0x98/0xe0 [prestera]\n[ 28.510683] prestera_fw_evt_work_fn+0x180/0x228 [prestera_pci]\n[ 28.516660] process_one_work+0x1e8/0x360\n[ 28.520710] worker_thread+0x44/0x480\n[ 28.524412] kthread+0x154/0x160\n[ 28.527670] ret_from_fork+0x10/0x38\n[ 28.531290] Code: a8c17bfd d50323bf d65f03c0 9278dc21 (f9400020)\n[ 28.537429] ---[ end trace 5eced933df3a080b ]---"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/ethernet/marvell/prestera/prestera_main.c"
],
"versions": [
{
"version": "501ef3066c89d7f9045315e1be58749cf9e6814d",
"lessThan": "0ce6052802be2cb61a57b753e41301339c88c839",
"status": "affected",
"versionType": "git"
},
{
"version": "501ef3066c89d7f9045315e1be58749cf9e6814d",
"lessThan": "b5bba6ede42693f50ce1c9944315cefed7491061",
"status": "affected",
"versionType": "git"
},
{
"version": "501ef3066c89d7f9045315e1be58749cf9e6814d",
"lessThan": "9d1ba11fabdd8f25abb24272ef1621417981320b",
"status": "affected",
"versionType": "git"
},
{
"version": "501ef3066c89d7f9045315e1be58749cf9e6814d",
"lessThan": "333980481b99edb24ebd5d1a53af70a15d9146de",
"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/net/ethernet/marvell/prestera/prestera_main.c"
],
"versions": [
{
"version": "5.10",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.10",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.37",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.11.21",
"lessThanOrEqual": "5.11.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.12.4",
"lessThanOrEqual": "5.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.13",
"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": "5.10",
"versionEndExcluding": "5.10.37"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "5.11.21"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "5.12.4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.10",
"versionEndExcluding": "5.13"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/0ce6052802be2cb61a57b753e41301339c88c839"
},
{
"url": "https://git.kernel.org/stable/c/b5bba6ede42693f50ce1c9944315cefed7491061"
},
{
"url": "https://git.kernel.org/stable/c/9d1ba11fabdd8f25abb24272ef1621417981320b"
},
{
"url": "https://git.kernel.org/stable/c/333980481b99edb24ebd5d1a53af70a15d9146de"
}
],
"title": "net: marvell: prestera: fix port event handling on init",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"problemTypes": [
{
"descriptions": [
{
"type": "CWE",
"cweId": "CWE-400",
"lang": "en",
"description": "CWE-400 Uncontrolled Resource Consumption"
}
]
}
],
"affected": [
{
"vendor": "linux",
"product": "linux_kernel",
"cpes": [
"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"versions": [
{
"version": "501ef3066c89",
"status": "affected",
"lessThan": "0ce6052802be",
"versionType": "git"
},
{
"version": "501ef3066c89",
"status": "affected",
"lessThan": "b5bba6ede426",
"versionType": "git"
},
{
"version": "501ef3066c89",
"status": "affected",
"lessThan": "9d1ba11fabdd",
"versionType": "git"
},
{
"version": "501ef3066c89",
"status": "affected",
"lessThan": "333980481b99",
"versionType": "git"
},
{
"version": "5.10",
"status": "affected"
},
{
"version": "0",
"status": "unaffected",
"lessThan": "5.10",
"versionType": "custom"
},
{
"version": "5.10.37",
"status": "unaffected",
"lessThanOrEqual": "5.11",
"versionType": "custom"
},
{
"version": "5.11.21",
"status": "unaffected",
"lessThanOrEqual": "5.12",
"versionType": "custom"
},
{
"version": "5.12.4",
"status": "unaffected",
"lessThanOrEqual": "5.13",
"versionType": "custom"
},
{
"version": "5.13",
"status": "unaffected",
"lessThanOrEqual": "*",
"versionType": "custom"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2024-02-28T18:28:27.274217Z",
"id": "CVE-2021-47023",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"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": "2024-07-25T15:23:40.132Z"
}
},
{
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2024-08-04T05:24:39.655Z"
},
"title": "CVE Program Container",
"references": [
{
"url": "https://git.kernel.org/stable/c/0ce6052802be2cb61a57b753e41301339c88c839",
"tags": [
"x_transferred"
]
},
{
"url": "https://git.kernel.org/stable/c/b5bba6ede42693f50ce1c9944315cefed7491061",
"tags": [
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]
},
{
"url": "https://git.kernel.org/stable/c/9d1ba11fabdd8f25abb24272ef1621417981320b",
"tags": [
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]
},
{
"url": "https://git.kernel.org/stable/c/333980481b99edb24ebd5d1a53af70a15d9146de",
"tags": [
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]
}
]
}
]
}
}