Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2021-47180— NFC: nci: fix memory leak in nci_allocate_device

EPSS 0.01% · P3
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2021-47180

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
NFC: nci: fix memory leak in nci_allocate_device
Source: NVD (National Vulnerability Database)
Vulnerability Description
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
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于 NFC nci 中的 nci_allocate_device存在内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 11f54f228643d0248ec00ce8c9fb8d872f87e7b8 ~ 448a1cb12977f52142e6feb12022c59662d88dc1 -
LinuxLinux 4.0 -

II. Public POCs for CVE-2021-47180

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-47180

请登录查看更多情报信息。

Same Patch Batch · Linux · 2024-03-25 · 40 CVEs total

CVE-2021-47170USB: usbfs: Don't WARN about excessively large memory allocations
CVE-2021-47161spi: spi-fsl-dspi: Fix a resource leak in an error handling path
CVE-2021-47162tipc: skb_linearize the head skb when reassembling msgs
CVE-2021-47163tipc: wait and exit until all work queues are done
CVE-2021-47164net/mlx5e: Fix null deref accessing lag dev
CVE-2021-47165drm/meson: fix shutdown crash when component not probed
CVE-2021-47166NFS: Don't corrupt the value of pg_bytes_written in nfs_do_recoalesce()
CVE-2021-47167NFS: Fix an Oopsable condition in __nfs_pageio_add_request()
CVE-2021-47168NFS: fix an incorrect limit in filelayout_decode_layout()
CVE-2021-47169serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'
CVE-2021-47160net: dsa: mt7530: fix VLAN traffic leaks
CVE-2021-47171net: usb: fix memory leak in smsc75xx_bind
CVE-2021-47172iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers
CVE-2021-47173misc/uss720: fix memory leak in uss720_probe
CVE-2021-47174netfilter: nft_set_pipapo_avx2: Add irq_fpu_usable() check, fallback to non-AVX2 version
CVE-2021-47175net/sched: fq_pie: fix OOB access in the traffic path
CVE-2021-47176s390/dasd: add missing discipline function
CVE-2021-47177iommu/vt-d: Fix sysfs leak in alloc_iommu()
CVE-2021-47178scsi: target: core: Avoid smp_processor_id() in preemptible code
CVE-2021-47179NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47180

No comments yet

Leave a comment