CVE-2021-47442— NFC: digital: fix possible memory leak in digital_in_send_sdd_req()
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2c66daecc4092e6049673c281b2e6f0d5e59a94c< 74569c78aa84f8c958f1334b465bc530906ec99a | affected |
2c66daecc4092e6049673c281b2e6f0d5e59a94c< 88c890b0b9a1fb9fcd01c61ada515e8b636c34f9 | affected | ||
2c66daecc4092e6049673c281b2e6f0d5e59a94c< fcce6e5255474ca33c27dda0cdf9bf5087278873 | affected | ||
2c66daecc4092e6049673c281b2e6f0d5e59a94c< 071bdef36391958c89af5fa2172f691b31baa212 | affected | ||
2c66daecc4092e6049673c281b2e6f0d5e59a94c< 2bde4aca56db9fe25405d39ddb062531493a65db | affected | ||
2c66daecc4092e6049673c281b2e6f0d5e59a94c< 50cb95487c265187289810addec5093d4fed8329 | affected | ||
2c66daecc4092e6049673c281b2e6f0d5e59a94c< 6432d7f1d1c3aa74cfe8f5e3afdf81b786c32e86 | affected | ||
2c66daecc4092e6049673c281b2e6f0d5e59a94c< 291c932fc3692e4d211a445ba8aa35663831bac7 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2021-47442
Vulnerability Information
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Vulnerability Title
NFC: digital: fix possible memory leak in digital_in_send_sdd_req()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digital_in_send_sdd_req() 'skb' is allocated in digital_in_send_sdd_req(), but not free when digital_in_send_cmd() failed, which will cause memory leak. Fix it by freeing 'skb' if digital_in_send_cmd() return failed.
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digital_in_send_sdd_req函数中存在内存泄漏问题。
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
II. Public POCs for CVE-2021-47442
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Linux · 2024-05-22 · 63 CVEs total
| CVE-2021-47477 | comedi: dt9812: fix DMA buffers on stack | |
| CVE-2021-47493 | ocfs2: fix race between searching chunks and release journal_head from buffer_head | |
| CVE-2021-47495 | usbnet: sanity check for maxpacket | |
| CVE-2021-47496 | net/tls: Fix flipped sign in tls_err_abort() calls | |
| CVE-2021-47494 | cfg80211: fix management registrations locking | |
| CVE-2021-47481 | RDMA/mlx5: Initialize the ODP xarray when creating an ODP MR | |
| CVE-2021-47482 | net: batman-adv: fix error handling | |
| CVE-2021-47480 | scsi: core: Put LLD module refcnt after SCSI device is released | |
| CVE-2021-47478 | isofs: Fix out of bound access for corrupted isofs image | |
| CVE-2021-47479 | staging: rtl8712: fix use-after-free in rtl8712_dl_fw | |
| CVE-2021-47483 | regmap: Fix possible double-free in regcache_rbtree_exit() | |
| CVE-2021-47476 | comedi: ni_usb6501: fix NULL-deref in command paths | |
| CVE-2021-47475 | comedi: vmk80xx: fix transfer-buffer overflows | |
| CVE-2021-47474 | comedi: vmk80xx: fix bulk-buffer overflow | |
| CVE-2021-47473 | scsi: qla2xxx: Fix a memory leak in an error path of qla2x00_process_els() | |
| CVE-2021-47471 | drm: mxsfb: Fix NULL pointer dereference crash on unload | |
| CVE-2021-47470 | mm, slub: fix potential use-after-free in slab_debugfs_fops | |
| CVE-2021-47468 | isdn: mISDN: Fix sleeping function called from invalid context | |
| CVE-2021-47467 | kunit: fix reference count leak in kfree_at_end | |
| CVE-2021-47466 | mm, slub: fix potential memoryleak in kmem_cache_open() |
Showing top 20 of 63 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
V. Comments for CVE-2021-47442
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