CVE-2021-47180 (GCVE-0-2021-47180)

Vulnerability from cvelistv5 – Published: 2024-03-25 09:16 – Updated: 2025-05-04 07:05
VLAI?
Title
NFC: nci: fix memory leak in nci_allocate_device
Summary
In the Linux kernel, the following vulnerability has been resolved: NFC: nci: fix memory leak in nci_allocate_device nfcmrvl_disconnect fails to free the hci_dev field in struct nci_dev. Fix this by freeing hci_dev in nci_free_device. BUG: memory leak unreferenced object 0xffff888111ea6800 (size 1024): comm "kworker/1:0", pid 19, jiffies 4294942308 (age 13.580s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 60 fd 0c 81 88 ff ff .........`...... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000004bc25d43>] kmalloc include/linux/slab.h:552 [inline] [<000000004bc25d43>] kzalloc include/linux/slab.h:682 [inline] [<000000004bc25d43>] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784 [<00000000c59cff92>] nci_allocate_device net/nfc/nci/core.c:1170 [inline] [<00000000c59cff92>] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132 [<00000000006e0a8e>] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153 [<000000004da1b57e>] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345 [<00000000d506aed9>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<00000000bc632c92>] really_probe+0x159/0x4a0 drivers/base/dd.c:554 [<00000000f5009125>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740 [<000000000ce658ca>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846 [<000000007067d05f>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000f8e13372>] __device_attach+0x122/0x250 drivers/base/dd.c:914 [<000000009cf68860>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000359c965a>] device_add+0x5be/0xc30 drivers/base/core.c:3109 [<00000000086e4bd3>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164 [<00000000ca036872>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000d40d36f6>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000bc632c92>] really_probe+0x159/0x4a0 drivers/base/dd.c:554
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 448a1cb12977f52142e6feb12022c59662d88dc1 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 4a621621c7af3cec21c47c349b30cd9c3cea11c8 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 2c2fb2df46ea866b49fea5ec7112ec3cd4896c74 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 0365701bc44e078682ee1224866a71897495c7ef (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < af2a4426baf71163c0c354580ae98c7888a9aba7 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < b34cb7ac32cc8e5471dc773180ea9ae676b1a745 (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < 65234f50a90b64b335cbb9164b8a98c2a0d031dd (git)
Affected: 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 , < e0652f8bb44d6294eeeac06d703185357f25d50b (git)
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    Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 4.4.271 , ≤ 4.4.* (semver)
Unaffected: 4.9.271 , ≤ 4.9.* (semver)
Unaffected: 4.14.235 , ≤ 4.14.* (semver)
Unaffected: 4.19.193 , ≤ 4.19.* (semver)
Unaffected: 5.4.123 , ≤ 5.4.* (semver)
Unaffected: 5.10.41 , ≤ 5.10.* (semver)
Unaffected: 5.12.8 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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    "dateUpdated": "2025-05-04T07:05:50.928Z",
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[{\"status\": \"affected\", \"version\": \"11f54f228643\", \"lessThan\": \"448a1cb12977\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"11f54f228643\", \"lessThan\": \"4a621621c7af\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"11f54f228643\", \"lessThan\": \"2c2fb2df46ea\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"11f54f228643\", \"lessThan\": \"0365701bc44e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"11f54f228643\", \"lessThan\": \"af2a4426baf7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"11f54f228643\", \"lessThan\": \"b34cb7ac32cc\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"11f54f228643\", \"lessThan\": \"65234f50a90b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"11f54f228643\", \"lessThan\": \"e0652f8bb44d\", \"versionType\": \"git\"}], \"programFiles\": [\"include/net/nfc/nci_core.h\", \"net/nfc/nci/core.c\", \"net/nfc/nci/hci.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.4.271\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.*\"}, {\"status\": \"unaffected\", \"version\": \"4.9.271\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.235\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.193\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.123\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.41\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"include/net/nfc/nci_core.h\", \"net/nfc/nci/core.c\", \"net/nfc/nci/hci.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1\"}, {\"url\": \"https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8\"}, {\"url\": \"https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74\"}, {\"url\": \"https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef\"}, {\"url\": \"https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7\"}, {\"url\": \"https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745\"}, {\"url\": \"https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd\"}, {\"url\": \"https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b\"}], \"x_generator\": {\"engine\": \"bippy-c8e10e5f6187\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nNFC: nci: fix memory leak in nci_allocate_device\\n\\nnfcmrvl_disconnect fails to free the hci_dev field in struct nci_dev.\\nFix this by freeing hci_dev in nci_free_device.\\n\\nBUG: memory leak\\nunreferenced object 0xffff888111ea6800 (size 1024):\\n  comm \\\"kworker/1:0\\\", pid 19, jiffies 4294942308 (age 13.580s)\\n  hex dump (first 32 bytes):\\n    00 00 00 00 00 00 00 00 00 60 fd 0c 81 88 ff ff  .........`......\\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\\n  backtrace:\\n    [\u003c000000004bc25d43\u003e] kmalloc include/linux/slab.h:552 [inline]\\n    [\u003c000000004bc25d43\u003e] kzalloc include/linux/slab.h:682 [inline]\\n    [\u003c000000004bc25d43\u003e] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784\\n    [\u003c00000000c59cff92\u003e] nci_allocate_device net/nfc/nci/core.c:1170 [inline]\\n    [\u003c00000000c59cff92\u003e] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132\\n    [\u003c00000000006e0a8e\u003e] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153\\n    [\u003c000000004da1b57e\u003e] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345\\n    [\u003c00000000d506aed9\u003e] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396\\n    [\u003c00000000bc632c92\u003e] really_probe+0x159/0x4a0 drivers/base/dd.c:554\\n    [\u003c00000000f5009125\u003e] driver_probe_device+0x84/0x100 drivers/base/dd.c:740\\n    [\u003c000000000ce658ca\u003e] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846\\n    [\u003c000000007067d05f\u003e] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431\\n    [\u003c00000000f8e13372\u003e] __device_attach+0x122/0x250 drivers/base/dd.c:914\\n    [\u003c000000009cf68860\u003e] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491\\n    [\u003c00000000359c965a\u003e] device_add+0x5be/0xc30 drivers/base/core.c:3109\\n    [\u003c00000000086e4bd3\u003e] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164\\n    [\u003c00000000ca036872\u003e] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238\\n    [\u003c00000000d40d36f6\u003e] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293\\n    [\u003c00000000bc632c92\u003e] really_probe+0x159/0x4a0 drivers/base/dd.c:554\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T11:36:18.143Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47180\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T11:36:18.143Z\", \"dateReserved\": \"2024-03-25T09:12:14.112Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-03-25T09:16:29.580Z\", \"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.
  • 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.