CVE-2021-47027

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-47027", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-27T18:42:55.961Z", "datePublished": "2024-02-28T08:13:38.385Z", "dateUpdated": "2026-05-11T13:46:32.579Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:46:32.579Z"}, "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"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/mediatek/mt76/mt7921/pci.c"], "versions": [{"version": "5c14a5f944b91371961548b1907802f74a4d2e5c", "lessThan": "a46b536cd60c0dbd4bf767c62a8774dec52bf099", "status": "affected", "versionType": "git"}, {"version": "5c14a5f944b91371961548b1907802f74a4d2e5c", "lessThan": "e230f0c44f011f3270680a506b19b7e84c5e8923", "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/wireless/mediatek/mt76/mt7921/pci.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "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": "5.12", "versionEndExcluding": "5.12.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a46b536cd60c0dbd4bf767c62a8774dec52bf099"}, {"url": "https://git.kernel.org/stable/c/e230f0c44f011f3270680a506b19b7e84c5e8923"}], "title": "mt76: mt7921: fix kernel crash when the firmware fails to download", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "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": "2024-06-04T17:15:24.166Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.870Z"}, "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"]}]}]}}

{"dataType": "CVE_RECORD", "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": "2026-05-11T13:46:32.579Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47027", "state": "PUBLISHED", "dateUpdated": "2026-05-11T13:46:32.579Z", "dateReserved": "2024-02-27T18:42:55.961Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-02-28T08:13:38.385Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/mediatek/mt76/mt7921/pci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a46b536cd60c0dbd4bf767c62a8774dec52bf099", "status": "affected", "version": "5c14a5f944b91371961548b1907802f74a4d2e5c", "versionType": "git"}, {"lessThan": "e230f0c44f011f3270680a506b19b7e84c5e8923", "status": "affected", "version": "5c14a5f944b91371961548b1907802f74a4d2e5c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/mediatek/mt76/mt7921/pci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.12"}, {"lessThan": "5.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.12.*", "status": "unaffected", "version": "5.12.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D8C7052F-1B7B-4327-9C2B-84EBF3243838", "versionEndExcluding": "5.12.4", "versionStartIncluding": "5.12", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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"}], "id": "CVE-2021-47027", "lastModified": "2026-06-17T04:16:14.183", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-47027", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-02-28T20:24:56.227062Z", "version": "2.0.3"}}]}, "published": "2024-02-28T09:15:39.383", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "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": "af854a3a-2127-422b-91ae-364da2661108", "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mt76: mt7921: fix kernel crash when the firmware fails to download", "id": "2266973", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2266973"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmt76: mt7921: fix kernel crash when the firmware fails to download\nFix kernel crash when the firmware is missing or fails to download.\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"], "name": "CVE-2021-47027", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47027\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47027\nhttps://lore.kernel.org/linux-cve-announce/2024022834-CVE-2021-47027-4a56@gregkh/T/#u"], "threat_severity": "Low"}

{}