CVE-2021-47518— nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95< 87cdb8789c38e44ae5454aafe277997c950d00ed | affected |
ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95< 69bb79a8f5bb9f436b6f1434ca9742591b7bbe18 | affected | ||
ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95< 811a7576747760bcaf60502f096d1e6e91d566fa | affected | ||
ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95< 3b861a40325eac9c4c13b6c53874ad90617e944d | affected | ||
ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95< 48fcd08fdbe05e35b650a252ec2a2d96057a1c7a | affected | ||
ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95< 83ea620a1be840bf05089a5061fb8323ca42f38c | affected | ||
ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95< fae9705d281091254d4a81fa2da9d22346097dca | affected | ||
ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95< 4cd8371a234d051f9c9557fcbb1f8c523b1c0d10 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2021-47518
Vulnerability Information
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Vulnerability Title
nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done The done() netlink callback nfc_genl_dump_ses_done() should check if received argument is non-NULL, because its allocation could fail earlier in dumpit() (nfc_genl_dump_ses()).
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 模块 nfc_genl_dump_ses_done 中潜在空指针取消引用漏洞。
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-2021-47518
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-47518 (7)
Same Patch Batch · Linux · 2024-05-24 · 73 CVEs total
| CVE-2021-47549 | sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl | |
| CVE-2021-47569 | io_uring: fail cancellation for EXITING tasks | |
| CVE-2021-47567 | powerpc/32: Fix hardlockup on vmap stack overflow | |
| CVE-2021-47554 | vdpa_sim: avoid putting an uninitialized iova_domain | |
| CVE-2021-47555 | net: vlan: fix underflow for the real_dev refcnt | |
| CVE-2021-47553 | sched/scs: Reset task stack state in bringup_cpu() | |
| CVE-2021-47551 | drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again | |
| CVE-2021-47552 | blk-mq: cancel blk-mq dispatch work in both blk_cleanup_queue and disk_release() | |
| CVE-2021-47550 | drm/amd/amdgpu: fix potential memleak | |
| CVE-2021-47548 | ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst | |
| CVE-2021-47556 | ethtool: ioctl: fix potential NULL deref in ethtool_set_coalesce() | |
| CVE-2021-47547 | net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound | |
| CVE-2021-47546 | ipv6: fix memory leak in fib6_rule_suppress | |
| CVE-2021-47544 | tcp: fix page frag corruption on page fault | |
| CVE-2021-47542 | net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings() | |
| CVE-2021-47541 | net/mlx4_en: Fix an use-after-free bug in mlx4_en_try_alloc_resources() | |
| CVE-2021-47540 | mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode | |
| CVE-2021-47539 | rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle() | |
| CVE-2021-47538 | rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer() | |
| CVE-2021-47536 | net/smc: fix wrong list_del in smc_lgr_cleanup_early |
Showing top 20 of 73 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-45836
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndti - CVE-2026-45835
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_conne - CVE-2026-45834
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_cha - CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans
Same vendor: Linux
- CVE-2026-45836
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndti - CVE-2026-45835
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_conne - CVE-2026-45834
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_cha - CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans
V. Comments for CVE-2021-47518
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