CVE-2021-47283 (GCVE-0-2021-47283)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:20 – Updated: 2025-05-04 07:07
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: net:sfc: fix non-freed irq in legacy irq mode SFC driver can be configured via modparam to work using MSI-X, MSI or legacy IRQ interrupts. In the last one, the interrupt was not properly released on module remove. It was not freed because the flag irqs_hooked was not set during initialization in the case of using legacy IRQ. Example of (trimmed) trace during module remove without this fix: remove_proc_entry: removing non-empty directory 'irq/125', leaking at least '0000:3b:00.1' WARNING: CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170 ...trimmed... Call Trace: unregister_irq_proc+0xe3/0x100 free_desc+0x29/0x70 irq_free_descs+0x47/0x70 mp_unmap_irq+0x58/0x60 acpi_unregister_gsi_ioapic+0x2a/0x40 acpi_pci_irq_disable+0x78/0xb0 pci_disable_device+0xd1/0x100 efx_pci_remove+0xa1/0x1e0 [sfc] pci_device_remove+0x38/0xa0 __device_release_driver+0x177/0x230 driver_detach+0xcb/0x110 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x2a/0xb0 efx_exit_module+0x24/0xf40 [sfc] __do_sys_delete_module.constprop.0+0x171/0x280 ? exit_to_user_mode_prepare+0x83/0x1d0 do_syscall_64+0x3d/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f9f9385800b ...trimmed...
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8d717c9135a3340ae62d1699484850bfb4112b0c (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 81c4d1d83f88e15b26f4522a35cba6ffd8c5dfdd (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8f03eeb6e0a0a0b8d617ee0a4bce729e47130036 (git)
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    Linux Linux Unaffected: 5.10.44 , ≤ 5.10.* (semver)
Unaffected: 5.12.11 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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In the last one, the interrupt was not properly\\nreleased on module remove.\\n\\nIt was not freed because the flag irqs_hooked was not set during\\ninitialization in the case of using legacy IRQ.\\n\\nExample of (trimmed) trace during module remove without this fix:\\n\\nremove_proc_entry: removing non-empty directory \u0027irq/125\u0027, leaking at least \u00270000:3b:00.1\u0027\\nWARNING: CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170\\n...trimmed...\\nCall Trace:\\n unregister_irq_proc+0xe3/0x100\\n free_desc+0x29/0x70\\n irq_free_descs+0x47/0x70\\n mp_unmap_irq+0x58/0x60\\n acpi_unregister_gsi_ioapic+0x2a/0x40\\n acpi_pci_irq_disable+0x78/0xb0\\n pci_disable_device+0xd1/0x100\\n efx_pci_remove+0xa1/0x1e0 [sfc]\\n pci_device_remove+0x38/0xa0\\n __device_release_driver+0x177/0x230\\n driver_detach+0xcb/0x110\\n bus_remove_driver+0x58/0xd0\\n pci_unregister_driver+0x2a/0xb0\\n efx_exit_module+0x24/0xf40 [sfc]\\n __do_sys_delete_module.constprop.0+0x171/0x280\\n ? exit_to_user_mode_prepare+0x83/0x1d0\\n do_syscall_64+0x3d/0x80\\n entry_SYSCALL_64_after_hwframe+0x44/0xae\\nRIP: 0033:0x7f9f9385800b\\n...trimmed...\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: net:sfc: corrige irq no liberado en modo irq heredado. El controlador SFC se puede configurar mediante modparam para que funcione usando interrupciones MSI-X, MSI o IRQ heredadas. En el \u00faltimo, la interrupci\u00f3n no se liber\u00f3 correctamente al eliminar el m\u00f3dulo. No se liber\u00f3 porque el indicador irqs_hooked no se estableci\u00f3 durante la inicializaci\u00f3n en el caso de utilizar IRQ heredado. Ejemplo de seguimiento (recortado) durante la eliminaci\u00f3n del m\u00f3dulo sin esta soluci\u00f3n: remove_proc_entry: eliminando el directorio no vac\u00edo \u0027irq/125\u0027, filtrando al menos \u00270000:3b:00.1\u0027 ADVERTENCIA: CPU: 39 PID: 3658 en fs/proc/generic .c:715 remove_proc_entry+0x15c/0x170 ...recortado... Seguimiento de llamadas: unregister_irq_proc+0xe3/0x100 free_desc+0x29/0x70 irq_free_descs+0x47/0x70 mp_unmap_irq+0x58/0x60 acpi_unregister_gsi_ioapic+0x2a/0x 40 acpi_pci_irq_disable+0x78/0xb0 pci_disable_device +0xd1/0x100 efx_pci_remove+0xa1/0x1e0 [sfc] pci_device_remove+0x38/0xa0 __device_release_driver+0x177/0x230 driver_detach+0xcb/0x110 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x2a/0 xb0 efx_exit_module+0x24/0xf40 [sfc] __do_sys_delete_module.constprop.0 +0x171/0x280 ? exit_to_user_mode_prepare+0x83/0x1d0 do_syscall_64+0x3d/0x80 Entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f9f9385800b ...recortado...\"}],\"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\":\"CWE-772\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"5.10.44\",\"matchCriteriaId\":\"021FCB31-DA9C-4E32-BAE6-E72DDA486D8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.12.11\",\"matchCriteriaId\":\"F914A757-FAFD-407E-9031-21F66635D5EA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"96AC23B2-D46A-49D9-8203-8E1BEDCA8532\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"DA610E30-717C-4700-9F77-A3C9244F3BFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"1ECD33F5-85BE-430B-8F86-8D7BD560311D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"CF351855-2437-4CF5-AD7C-BDFA51F27683\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/81c4d1d83f88e15b26f4522a35cba6ffd8c5dfdd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8d717c9135a3340ae62d1699484850bfb4112b0c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8f03eeb6e0a0a0b8d617ee0a4bce729e47130036\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/81c4d1d83f88e15b26f4522a35cba6ffd8c5dfdd\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8d717c9135a3340ae62d1699484850bfb4112b0c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8f03eeb6e0a0a0b8d617ee0a4bce729e47130036\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/8d717c9135a3340ae62d1699484850bfb4112b0c\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/81c4d1d83f88e15b26f4522a35cba6ffd8c5dfdd\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/8f03eeb6e0a0a0b8d617ee0a4bce729e47130036\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:32:08.013Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47283\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-12T15:24:21.338589Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-12T15:24:25.899Z\"}}], \"cna\": {\"title\": \"net:sfc: fix non-freed irq in legacy irq mode\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"8d717c9135a3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"81c4d1d83f88\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"8f03eeb6e0a0\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/sfc/nic.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"5.10.44\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.11\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/sfc/nic.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/8d717c9135a3340ae62d1699484850bfb4112b0c\"}, {\"url\": \"https://git.kernel.org/stable/c/81c4d1d83f88e15b26f4522a35cba6ffd8c5dfdd\"}, {\"url\": \"https://git.kernel.org/stable/c/8f03eeb6e0a0a0b8d617ee0a4bce729e47130036\"}], \"x_generator\": {\"engine\": \"bippy-a5840b7849dd\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet:sfc: fix non-freed irq in legacy irq mode\\n\\nSFC driver can be configured via modparam to work using MSI-X, MSI or\\nlegacy IRQ interrupts. In the last one, the interrupt was not properly\\nreleased on module remove.\\n\\nIt was not freed because the flag irqs_hooked was not set during\\ninitialization in the case of using legacy IRQ.\\n\\nExample of (trimmed) trace during module remove without this fix:\\n\\nremove_proc_entry: removing non-empty directory \u0027irq/125\u0027, leaking at least \u00270000:3b:00.1\u0027\\nWARNING: CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170\\n...trimmed...\\nCall Trace:\\n unregister_irq_proc+0xe3/0x100\\n free_desc+0x29/0x70\\n irq_free_descs+0x47/0x70\\n mp_unmap_irq+0x58/0x60\\n acpi_unregister_gsi_ioapic+0x2a/0x40\\n acpi_pci_irq_disable+0x78/0xb0\\n pci_disable_device+0xd1/0x100\\n efx_pci_remove+0xa1/0x1e0 [sfc]\\n pci_device_remove+0x38/0xa0\\n __device_release_driver+0x177/0x230\\n driver_detach+0xcb/0x110\\n bus_remove_driver+0x58/0xd0\\n pci_unregister_driver+0x2a/0xb0\\n efx_exit_module+0x24/0xf40 [sfc]\\n __do_sys_delete_module.constprop.0+0x171/0x280\\n ? exit_to_user_mode_prepare+0x83/0x1d0\\n do_syscall_64+0x3d/0x80\\n entry_SYSCALL_64_after_hwframe+0x44/0xae\\nRIP: 0033:0x7f9f9385800b\\n...trimmed...\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-05-29T05:05:15.153Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47283\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-04T05:32:08.013Z\", \"dateReserved\": \"2024-05-21T13:27:52.129Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T14:20:08.828Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.