CVE-2021-47612— nfc: fix segfault in nfc_genl_dump_devices_done
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 4d12b8b129f170d0fc3188de1e51a2a1b0f87730< ea55b3797878752aa076b118afb727dcf79cac34 | affected |
4d12b8b129f170d0fc3188de1e51a2a1b0f87730< 214af18abbe39db05beb305b2d11e87d09a6529c | affected | ||
4d12b8b129f170d0fc3188de1e51a2a1b0f87730< 6644989642844de830f9b072cd65c553cb55946c | affected | ||
4d12b8b129f170d0fc3188de1e51a2a1b0f87730< 2a8845b9603c545fddd17862282dc4c4ce0971e3 | affected | ||
4d12b8b129f170d0fc3188de1e51a2a1b0f87730< d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 | affected | ||
4d12b8b129f170d0fc3188de1e51a2a1b0f87730< c602863ad28ec86794cb4ab4edea5324f555f181 | affected | ||
4d12b8b129f170d0fc3188de1e51a2a1b0f87730< d89e4211b51752daf063d638af50abed2fd5f96d | affected | ||
4d12b8b129f170d0fc3188de1e51a2a1b0f87730< fd79a0cbf0b2e34bcc45b13acf962e2032a82203 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2021-47612
Vulnerability Information
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Vulnerability Title
nfc: fix segfault in nfc_genl_dump_devices_done
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nfc: fix segfault in nfc_genl_dump_devices_done When kmalloc in nfc_genl_dump_devices() fails then nfc_genl_dump_devices_done() segfaults as below KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014 Workqueue: events netlink_sock_destruct_work RIP: 0010:klist_iter_exit+0x26/0x80 Call Trace: <TASK> class_dev_iter_exit+0x15/0x20 nfc_genl_dump_devices_done+0x3b/0x50 genl_lock_done+0x84/0xd0 netlink_sock_destruct+0x8f/0x270 __sk_destruct+0x64/0x3b0 sk_destruct+0xa8/0xd0 __sk_free+0x2e8/0x3d0 sk_free+0x51/0x90 netlink_sock_destruct_work+0x1c/0x20 process_one_work+0x411/0x710 worker_thread+0x6fd/0xa80
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，该漏洞源于空指针取消引用。
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-2021-47612
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2024-06-19 · 122 CVEs total
| CVE-2024-38612 | ipv6: sr: fix invalid unregister error path | |
| CVE-2021-47584 | iocost: Fix divide-by-zero on donation from low hweight cgroup | |
| CVE-2021-47582 | USB: core: Make do_proc_control() and do_proc_bulk() killable | |
| CVE-2021-47583 | media: mxl111sf: change mutex_init() location | |
| CVE-2021-47579 | ovl: fix warning in ovl_create_real() | |
| CVE-2021-47580 | scsi: scsi_debug: Fix type in min_t to avoid stack OOB | |
| CVE-2021-47578 | scsi: scsi_debug: Don't call kcalloc() if size arg is zero | |
| CVE-2021-47576 | scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select() | |
| CVE-2021-47577 | io-wq: check for wq exit after adding new worker task_work | |
| CVE-2024-38617 | kunit/fortify: Fix mismatched kvalloc()/vfree() usage | |
| CVE-2024-38618 | ALSA: timer: Set lower bound of start tick time | |
| CVE-2024-38616 | wifi: carl9170: re-fix fortified-memset warning | |
| CVE-2024-38615 | cpufreq: exit() callback is optional | |
| CVE-2024-38614 | openrisc: traps: Don't send signals to kernel mode threads | |
| CVE-2024-38613 | m68k: Fix spinlock race in kernel thread creation | |
| CVE-2024-38611 | media: i2c: et8ek8: Don't strip remove function when driver is builtin | |
| CVE-2024-38603 | drivers/perf: hisi: hns3: Actually use devm_add_action_or_reset() | |
| CVE-2024-38601 | ring-buffer: Fix a race between readers and resize checks | |
| CVE-2024-38600 | ALSA: Fix deadlocks with kctl removals at disconnection | |
| CVE-2024-38602 | ax25: Fix reference count leak issues of ax25_dev |
Showing top 20 of 122 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-2021-47612
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