CVE-2021-47027 (GCVE-0-2021-47027)

Vulnerability from cvelistv5 – Published: 2024-02-28 08:13 – Updated: 2025-05-04 07:02
VLAI?
Title
mt76: mt7921: fix kernel crash when the firmware fails to download
Summary
In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix kernel crash when the firmware fails to download Fix kernel crash when the firmware is missing or fails to download. [ 9.444758] kernel BUG at drivers/pci/msi.c:375! [ 9.449363] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 9.501033] pstate: a0400009 (NzCv daif +PAN -UAO) [ 9.505814] pc : free_msi_irqs+0x180/0x184 [ 9.509897] lr : free_msi_irqs+0x40/0x184 [ 9.513893] sp : ffffffc015193870 [ 9.517194] x29: ffffffc015193870 x28: 00000000f0e94fa2 [ 9.522492] x27: 0000000000000acd x26: 000000000000009a [ 9.527790] x25: ffffffc0152cee58 x24: ffffffdbb383e0d8 [ 9.533087] x23: ffffffdbb38628d0 x22: 0000000000040200 [ 9.538384] x21: ffffff8cf7de7318 x20: ffffff8cd65a2480 [ 9.543681] x19: ffffff8cf7de7000 x18: 0000000000000000 [ 9.548979] x17: ffffff8cf9ca03b4 x16: ffffffdc13ad9a34 [ 9.554277] x15: 0000000000000000 x14: 0000000000080800 [ 9.559575] x13: ffffff8cd65a2980 x12: 0000000000000000 [ 9.564873] x11: ffffff8cfa45d820 x10: ffffff8cfa45d6d0 [ 9.570171] x9 : 0000000000000040 x8 : ffffff8ccef1b780 [ 9.575469] x7 : aaaaaaaaaaaaaaaa x6 : 0000000000000000 [ 9.580766] x5 : ffffffdc13824900 x4 : ffffff8ccefe0000 [ 9.586063] x3 : 0000000000000000 x2 : 0000000000000000 [ 9.591362] x1 : 0000000000000125 x0 : ffffff8ccefe0000 [ 9.596660] Call trace: [ 9.599095] free_msi_irqs+0x180/0x184 [ 9.602831] pci_disable_msi+0x100/0x130 [ 9.606740] pci_free_irq_vectors+0x24/0x30 [ 9.610915] mt7921_pci_probe+0xbc/0x250 [mt7921e] [ 9.615693] pci_device_probe+0xd4/0x14c [ 9.619604] really_probe+0x134/0x2ec [ 9.623252] driver_probe_device+0x64/0xfc [ 9.627335] device_driver_attach+0x4c/0x6c [ 9.631506] __driver_attach+0xac/0xc0 [ 9.635243] bus_for_each_dev+0x8c/0xd4 [ 9.639066] driver_attach+0x2c/0x38 [ 9.642628] bus_add_driver+0xfc/0x1d0 [ 9.646365] driver_register+0x64/0xf8 [ 9.650101] __pci_register_driver+0x6c/0x7c [ 9.654360] init_module+0x28/0xfdc [mt7921e] [ 9.658704] do_one_initcall+0x13c/0x2d0 [ 9.662615] do_init_module+0x58/0x1e8 [ 9.666351] load_module+0xd80/0xeb4 [ 9.669912] __arm64_sys_finit_module+0xa8/0xe0 [ 9.674430] el0_svc_common+0xa4/0x16c [ 9.678168] el0_svc_compat_handler+0x2c/0x40 [ 9.682511] el0_svc_compat+0x8/0x10 [ 9.686076] Code: a94257f6 f9400bf7 a8c47bfd d65f03c0 (d4210000) [ 9.692155] ---[ end trace 7621f966afbf0a29 ]--- [ 9.697385] Kernel panic - not syncing: Fatal exception [ 9.702599] SMP: stopping secondary CPUs [ 9.706549] Kernel Offset: 0x1c03600000 from 0xffffffc010000000 [ 9.712456] PHYS_OFFSET: 0xfffffff440000000 [ 9.716625] CPU features: 0x080026,2a80aa18 [ 9.720795] Memory Limit: none
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5c14a5f944b91371961548b1907802f74a4d2e5c , < a46b536cd60c0dbd4bf767c62a8774dec52bf099 (git)
Affected: 5c14a5f944b91371961548b1907802f74a4d2e5c , < e230f0c44f011f3270680a506b19b7e84c5e8923 (git)
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    Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.12.4 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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                "id": "CVE-2021-47027",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: mt7921: fix kernel crash when the firmware fails to download\n\nFix kernel crash when the firmware is missing or fails to download.\n\n[    9.444758] kernel BUG at drivers/pci/msi.c:375!\n[    9.449363] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\n[    9.501033] pstate: a0400009 (NzCv daif +PAN -UAO)\n[    9.505814] pc : free_msi_irqs+0x180/0x184\n[    9.509897] lr : free_msi_irqs+0x40/0x184\n[    9.513893] sp : ffffffc015193870\n[    9.517194] x29: ffffffc015193870 x28: 00000000f0e94fa2\n[    9.522492] x27: 0000000000000acd x26: 000000000000009a\n[    9.527790] x25: ffffffc0152cee58 x24: ffffffdbb383e0d8\n[    9.533087] x23: ffffffdbb38628d0 x22: 0000000000040200\n[    9.538384] x21: ffffff8cf7de7318 x20: ffffff8cd65a2480\n[    9.543681] x19: ffffff8cf7de7000 x18: 0000000000000000\n[    9.548979] x17: ffffff8cf9ca03b4 x16: ffffffdc13ad9a34\n[    9.554277] x15: 0000000000000000 x14: 0000000000080800\n[    9.559575] x13: ffffff8cd65a2980 x12: 0000000000000000\n[    9.564873] x11: ffffff8cfa45d820 x10: ffffff8cfa45d6d0\n[    9.570171] x9 : 0000000000000040 x8 : ffffff8ccef1b780\n[    9.575469] x7 : aaaaaaaaaaaaaaaa x6 : 0000000000000000\n[    9.580766] x5 : ffffffdc13824900 x4 : ffffff8ccefe0000\n[    9.586063] x3 : 0000000000000000 x2 : 0000000000000000\n[    9.591362] x1 : 0000000000000125 x0 : ffffff8ccefe0000\n[    9.596660] Call trace:\n[    9.599095]  free_msi_irqs+0x180/0x184\n[    9.602831]  pci_disable_msi+0x100/0x130\n[    9.606740]  pci_free_irq_vectors+0x24/0x30\n[    9.610915]  mt7921_pci_probe+0xbc/0x250 [mt7921e]\n[    9.615693]  pci_device_probe+0xd4/0x14c\n[    9.619604]  really_probe+0x134/0x2ec\n[    9.623252]  driver_probe_device+0x64/0xfc\n[    9.627335]  device_driver_attach+0x4c/0x6c\n[    9.631506]  __driver_attach+0xac/0xc0\n[    9.635243]  bus_for_each_dev+0x8c/0xd4\n[    9.639066]  driver_attach+0x2c/0x38\n[    9.642628]  bus_add_driver+0xfc/0x1d0\n[    9.646365]  driver_register+0x64/0xf8\n[    9.650101]  __pci_register_driver+0x6c/0x7c\n[    9.654360]  init_module+0x28/0xfdc [mt7921e]\n[    9.658704]  do_one_initcall+0x13c/0x2d0\n[    9.662615]  do_init_module+0x58/0x1e8\n[    9.666351]  load_module+0xd80/0xeb4\n[    9.669912]  __arm64_sys_finit_module+0xa8/0xe0\n[    9.674430]  el0_svc_common+0xa4/0x16c\n[    9.678168]  el0_svc_compat_handler+0x2c/0x40\n[    9.682511]  el0_svc_compat+0x8/0x10\n[    9.686076] Code: a94257f6 f9400bf7 a8c47bfd d65f03c0 (d4210000)\n[    9.692155] ---[ end trace 7621f966afbf0a29 ]---\n[    9.697385] Kernel panic - not syncing: Fatal exception\n[    9.702599] SMP: stopping secondary CPUs\n[    9.706549] Kernel Offset: 0x1c03600000 from 0xffffffc010000000\n[    9.712456] PHYS_OFFSET: 0xfffffff440000000\n[    9.716625] CPU features: 0x080026,2a80aa18\n[    9.720795] Memory Limit: none"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47027",
    "datePublished": "2024-02-28T08:13:38.385Z",
    "dateReserved": "2024-02-27T18:42:55.961Z",
    "dateUpdated": "2025-05-04T07:02:34.973Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47027\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-28T09:15:39.383\",\"lastModified\":\"2025-01-10T18:24:08.367\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7921: fix kernel crash when the firmware fails to download\\n\\nFix kernel crash when the firmware is missing or fails to download.\\n\\n[    9.444758] kernel BUG at drivers/pci/msi.c:375!\\n[    9.449363] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\\n[    9.501033] pstate: a0400009 (NzCv daif +PAN -UAO)\\n[    9.505814] pc : free_msi_irqs+0x180/0x184\\n[    9.509897] lr : free_msi_irqs+0x40/0x184\\n[    9.513893] sp : ffffffc015193870\\n[    9.517194] x29: ffffffc015193870 x28: 00000000f0e94fa2\\n[    9.522492] x27: 0000000000000acd x26: 000000000000009a\\n[    9.527790] x25: ffffffc0152cee58 x24: ffffffdbb383e0d8\\n[    9.533087] x23: ffffffdbb38628d0 x22: 0000000000040200\\n[    9.538384] x21: ffffff8cf7de7318 x20: ffffff8cd65a2480\\n[    9.543681] x19: ffffff8cf7de7000 x18: 0000000000000000\\n[    9.548979] x17: ffffff8cf9ca03b4 x16: ffffffdc13ad9a34\\n[    9.554277] x15: 0000000000000000 x14: 0000000000080800\\n[    9.559575] x13: ffffff8cd65a2980 x12: 0000000000000000\\n[    9.564873] x11: ffffff8cfa45d820 x10: ffffff8cfa45d6d0\\n[    9.570171] x9 : 0000000000000040 x8 : ffffff8ccef1b780\\n[    9.575469] x7 : aaaaaaaaaaaaaaaa x6 : 0000000000000000\\n[    9.580766] x5 : ffffffdc13824900 x4 : ffffff8ccefe0000\\n[    9.586063] x3 : 0000000000000000 x2 : 0000000000000000\\n[    9.591362] x1 : 0000000000000125 x0 : ffffff8ccefe0000\\n[    9.596660] Call trace:\\n[    9.599095]  free_msi_irqs+0x180/0x184\\n[    9.602831]  pci_disable_msi+0x100/0x130\\n[    9.606740]  pci_free_irq_vectors+0x24/0x30\\n[    9.610915]  mt7921_pci_probe+0xbc/0x250 [mt7921e]\\n[    9.615693]  pci_device_probe+0xd4/0x14c\\n[    9.619604]  really_probe+0x134/0x2ec\\n[    9.623252]  driver_probe_device+0x64/0xfc\\n[    9.627335]  device_driver_attach+0x4c/0x6c\\n[    9.631506]  __driver_attach+0xac/0xc0\\n[    9.635243]  bus_for_each_dev+0x8c/0xd4\\n[    9.639066]  driver_attach+0x2c/0x38\\n[    9.642628]  bus_add_driver+0xfc/0x1d0\\n[    9.646365]  driver_register+0x64/0xf8\\n[    9.650101]  __pci_register_driver+0x6c/0x7c\\n[    9.654360]  init_module+0x28/0xfdc [mt7921e]\\n[    9.658704]  do_one_initcall+0x13c/0x2d0\\n[    9.662615]  do_init_module+0x58/0x1e8\\n[    9.666351]  load_module+0xd80/0xeb4\\n[    9.669912]  __arm64_sys_finit_module+0xa8/0xe0\\n[    9.674430]  el0_svc_common+0xa4/0x16c\\n[    9.678168]  el0_svc_compat_handler+0x2c/0x40\\n[    9.682511]  el0_svc_compat+0x8/0x10\\n[    9.686076] Code: a94257f6 f9400bf7 a8c47bfd d65f03c0 (d4210000)\\n[    9.692155] ---[ end trace 7621f966afbf0a29 ]---\\n[    9.697385] Kernel panic - not syncing: Fatal exception\\n[    9.702599] SMP: stopping secondary CPUs\\n[    9.706549] Kernel Offset: 0x1c03600000 from 0xffffffc010000000\\n[    9.712456] PHYS_OFFSET: 0xfffffff440000000\\n[    9.716625] CPU features: 0x080026,2a80aa18\\n[    9.720795] Memory Limit: none\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mt76: mt7921: soluciona el fallo del kernel cuando no se puede descargar el firmware. Se soluciona el fallo del kernel cuando falta el firmware o no se puede descargar. [9.444758] \u00a1ERROR del kernel en drivers/pci/msi.c:375! [0 x40/ 0x184 [ 9.513893] sp : ffffffc015193870 [ 9.517194] x29: ffffffc015193870 x28: 00000000f0e94fa2 [ 9.522492] x27: 0000000000000acd x26: 000000 000000009a [ 9.527790] x25: ffffffc0152cee58 x24: ffffffdbb383e0d8 [ 9.533087] x23: ffffffdbb38628d0 x22: 0000000000040200 [ 9.538384] x21: ffffff8cf 7de7318 x20 : ffffff8cd65a2480 [ 9.543681] x19: ffffff8cf7de7000 x18: 0000000000000000 [ 9.548979] x17: ffffff8cf9ca03b4 x16: ffffffdc13ad9a34 [ 9.554277] x15: 00 00000000000000 x14: 0000000000080800 [ 9.559575] x13: ffffff8cd65a2980 x12: 00000000000000000 [ 9.564873] x11: ffffff8cfa45d820 x10: ffffff8cfa45 d6d0 [9.570171] X9: 000000000000000040 X8: FFFFFF8CCEF1B780 [9.575469] x7: aaaaaaaaaaaaaaaaa X6: 00000000000000000000 [9.580766] x5: fffffffdc13824900 x4: fffff8ce 00000000000000 x2: 000000000000000000 [9.591362] X1: 000000000000000125 X0: FFFFFFF8CCEFE0000 [9.596660] Llame Trace: [9.599095 ] free_msi_irqs+0x180/0x184 [ 9.602831] pci_disable_msi+0x100/0x130 [ 9.606740] pci_free_irq_vectors+0x24/0x30 [ 9.610915] mt7921_pci_probe+0xbc/0x250 [mt7921 e] [ 9.615693] pci_device_probe+0xd4/0x14c [ 9.619604] very_probe+0x134/0x2ec [ 9.623252] driver_probe_device+0x64/0xfc [ 9.627335] dispositivo_driver_attach+0x4c/0x6c [ 9.631506] __driver_attach+0xac/0xc0 [ 9.635243] bus_for_each_dev+0x8c/0xd4 [ 9.639066] driver_ adjuntar+0x2c/0x38 [ 9.642628] bus_add_driver+0xfc/0x1d0 [ 9.646365] driver_register+0x64/0xf8 [ 9.650101] __pci_register_driver+0x6c/0x7c [ 9.654360] init_module+0x28/0xfdc [mt7921e] [ 9.658704] do_one_initcall+0x13c/0x2d0 [ 9.662615] do_ m\u00f3dulo_init+0x58/0x1e8 [ 9.666351] m\u00f3dulo_carga+0xd80/0xeb4 [ 9.669912 ] __arm64_sys_finit_module+0xa8/0xe0 [ 9.674430] el0_svc_common+0xa4/0x16c [ 9.678168] el0_svc_compat_handler+0x2c/0x40 [ 9.682511] el0_svc_compat+0x8/0x10 [ 9.68 6076] C\u00f3digo: a94257f6 f9400bf7 a8c47bfd d65f03c0 (d4210000) [ 9.692155] ---[ fin trace 7621f966afbf0a29 ]--- [ 9.697385] P\u00e1nico del kernel: no se sincroniza: excepci\u00f3n grave [ 9.702599] SMP: detenci\u00f3n de CPU secundarias [ 9.706549] Compensaci\u00f3n del kernel: 0x1c03600000 de 0xffffffc010000000 [ 9.712456] PHYS_OFF CONJUNTO: 0xffffff440000000 [9.716625] Caracter\u00edsticas de la CPU: 0x080026,2a80aa18 [ 9.720795] L\u00edmite de memoria: ninguno\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.12\",\"versionEndExcluding\":\"5.12.4\",\"matchCriteriaId\":\"D8C7052F-1B7B-4327-9C2B-84EBF3243838\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/a46b536cd60c0dbd4bf767c62a8774dec52bf099\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e230f0c44f011f3270680a506b19b7e84c5e8923\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a46b536cd60c0dbd4bf767c62a8774dec52bf099\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e230f0c44f011f3270680a506b19b7e84c5e8923\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a46b536cd60c0dbd4bf767c62a8774dec52bf099\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e230f0c44f011f3270680a506b19b7e84c5e8923\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:24:39.870Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47027\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-02-28T20:24:56.227062Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-23T19:01:13.797Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"mt76: mt7921: fix kernel crash when the firmware fails to download\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5c14a5f944b91371961548b1907802f74a4d2e5c\", \"lessThan\": \"a46b536cd60c0dbd4bf767c62a8774dec52bf099\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5c14a5f944b91371961548b1907802f74a4d2e5c\", \"lessThan\": \"e230f0c44f011f3270680a506b19b7e84c5e8923\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7921/pci.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.12\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.12\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.12.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7921/pci.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a46b536cd60c0dbd4bf767c62a8774dec52bf099\"}, {\"url\": \"https://git.kernel.org/stable/c/e230f0c44f011f3270680a506b19b7e84c5e8923\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7921: fix kernel crash when the firmware fails to download\\n\\nFix kernel crash when the firmware is missing or fails to download.\\n\\n[    9.444758] kernel BUG at drivers/pci/msi.c:375!\\n[    9.449363] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\\n[    9.501033] pstate: a0400009 (NzCv daif +PAN -UAO)\\n[    9.505814] pc : free_msi_irqs+0x180/0x184\\n[    9.509897] lr : free_msi_irqs+0x40/0x184\\n[    9.513893] sp : ffffffc015193870\\n[    9.517194] x29: ffffffc015193870 x28: 00000000f0e94fa2\\n[    9.522492] x27: 0000000000000acd x26: 000000000000009a\\n[    9.527790] x25: ffffffc0152cee58 x24: ffffffdbb383e0d8\\n[    9.533087] x23: ffffffdbb38628d0 x22: 0000000000040200\\n[    9.538384] x21: ffffff8cf7de7318 x20: ffffff8cd65a2480\\n[    9.543681] x19: ffffff8cf7de7000 x18: 0000000000000000\\n[    9.548979] x17: ffffff8cf9ca03b4 x16: ffffffdc13ad9a34\\n[    9.554277] x15: 0000000000000000 x14: 0000000000080800\\n[    9.559575] x13: ffffff8cd65a2980 x12: 0000000000000000\\n[    9.564873] x11: ffffff8cfa45d820 x10: ffffff8cfa45d6d0\\n[    9.570171] x9 : 0000000000000040 x8 : ffffff8ccef1b780\\n[    9.575469] x7 : aaaaaaaaaaaaaaaa x6 : 0000000000000000\\n[    9.580766] x5 : ffffffdc13824900 x4 : ffffff8ccefe0000\\n[    9.586063] x3 : 0000000000000000 x2 : 0000000000000000\\n[    9.591362] x1 : 0000000000000125 x0 : ffffff8ccefe0000\\n[    9.596660] Call trace:\\n[    9.599095]  free_msi_irqs+0x180/0x184\\n[    9.602831]  pci_disable_msi+0x100/0x130\\n[    9.606740]  pci_free_irq_vectors+0x24/0x30\\n[    9.610915]  mt7921_pci_probe+0xbc/0x250 [mt7921e]\\n[    9.615693]  pci_device_probe+0xd4/0x14c\\n[    9.619604]  really_probe+0x134/0x2ec\\n[    9.623252]  driver_probe_device+0x64/0xfc\\n[    9.627335]  device_driver_attach+0x4c/0x6c\\n[    9.631506]  __driver_attach+0xac/0xc0\\n[    9.635243]  bus_for_each_dev+0x8c/0xd4\\n[    9.639066]  driver_attach+0x2c/0x38\\n[    9.642628]  bus_add_driver+0xfc/0x1d0\\n[    9.646365]  driver_register+0x64/0xf8\\n[    9.650101]  __pci_register_driver+0x6c/0x7c\\n[    9.654360]  init_module+0x28/0xfdc [mt7921e]\\n[    9.658704]  do_one_initcall+0x13c/0x2d0\\n[    9.662615]  do_init_module+0x58/0x1e8\\n[    9.666351]  load_module+0xd80/0xeb4\\n[    9.669912]  __arm64_sys_finit_module+0xa8/0xe0\\n[    9.674430]  el0_svc_common+0xa4/0x16c\\n[    9.678168]  el0_svc_compat_handler+0x2c/0x40\\n[    9.682511]  el0_svc_compat+0x8/0x10\\n[    9.686076] Code: a94257f6 f9400bf7 a8c47bfd d65f03c0 (d4210000)\\n[    9.692155] ---[ end trace 7621f966afbf0a29 ]---\\n[    9.697385] Kernel panic - not syncing: Fatal exception\\n[    9.702599] SMP: stopping secondary CPUs\\n[    9.706549] Kernel Offset: 0x1c03600000 from 0xffffffc010000000\\n[    9.712456] PHYS_OFFSET: 0xfffffff440000000\\n[    9.716625] CPU features: 0x080026,2a80aa18\\n[    9.720795] Memory Limit: none\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.4\", \"versionStartIncluding\": \"5.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"5.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:02:34.973Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47027\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:02:34.973Z\", \"dateReserved\": \"2024-02-27T18:42:55.961Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-28T08:13:38.385Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.