CVE-2021-47180

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47180
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

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef Patch
https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74 Patch
https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1 Patch
https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8 Patch
https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd Patch
https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7 Patch
https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745 Patch
https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b Patch
https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef Patch
https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74 Patch
https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1 Patch
https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8 Patch
https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd Patch
https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7 Patch
https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745 Patch
https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*
History

07 Jan 2025, 17:17

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CWE CWE-401
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef - () https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef - Patch
References () https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74 - () https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74 - Patch
References () https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1 - () https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1 - Patch
References () https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8 - () https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8 - Patch
References () https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd - () https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd - Patch
References () https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7 - () https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7 - Patch
References () https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745 - () https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745 - Patch
References () https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b - () https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b - Patch

21 Nov 2024, 06:35

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef - () https://git.kernel.org/stable/c/0365701bc44e078682ee1224866a71897495c7ef -
References () https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74 - () https://git.kernel.org/stable/c/2c2fb2df46ea866b49fea5ec7112ec3cd4896c74 -
References () https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1 - () https://git.kernel.org/stable/c/448a1cb12977f52142e6feb12022c59662d88dc1 -
References () https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8 - () https://git.kernel.org/stable/c/4a621621c7af3cec21c47c349b30cd9c3cea11c8 -
References () https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd - () https://git.kernel.org/stable/c/65234f50a90b64b335cbb9164b8a98c2a0d031dd -
References () https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7 - () https://git.kernel.org/stable/c/af2a4426baf71163c0c354580ae98c7888a9aba7 -
References () https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745 - () https://git.kernel.org/stable/c/b34cb7ac32cc8e5471dc773180ea9ae676b1a745 -
References () https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b - () https://git.kernel.org/stable/c/e0652f8bb44d6294eeeac06d703185357f25d50b -

25 Mar 2024, 10:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-25 10:15

Updated : 2025-01-07 17:17

NVD link : CVE-2021-47180

Mitre link : CVE-2021-47180

CVE.ORG link : CVE-2021-47180

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime