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CVE-2026-64010— nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 3.6版本存在安全漏洞，该漏洞源于NFC LLCP连接状态机中的竞争条件，可能导致接收连接接受数据包时与套接字释放并发处理，进而导致套接字对象的释放后重用。

CVSS 8.8 · High EPSS 0.40% · P33

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux a69f32af86e389dd232b1bb2269e202c1bfcc60f< dce85215a6c7b0fd753f577a4c487f647119884c affected
a69f32af86e389dd232b1bb2269e202c1bfcc60f< bd08bb7443c501d2f2a71d529e4afcf11c9b07d2 affected
a69f32af86e389dd232b1bb2269e202c1bfcc60f< 0b45c31746e1523d5d482fda8fcf54a35ac417f1 affected
a69f32af86e389dd232b1bb2269e202c1bfcc60f< ee2d1a8a1833c5e56e9a1745e64b0b4edda732c2 affected
a69f32af86e389dd232b1bb2269e202c1bfcc60f< ad8a27d63cac96bac441edd002209ebd996e12fb affected
a69f32af86e389dd232b1bb2269e202c1bfcc60f< 650bdd8fdfab64a09ee474150313dbc48c374795 affected
a69f32af86e389dd232b1bb2269e202c1bfcc60f< b2a60f7f846faaf5c2cdad4ea6d3a33e5f863183 affected
a69f32af86e389dd232b1bb2269e202c1bfcc60f< b493ea2765cc17cb8aa7e7544a4b6dcb05b6ed77 affected
… +10 more rows
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I. Basic Information for CVE-2026-64010

Vulnerability Information
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Vulnerability Title
nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: Fix use-after-free race in nfc_llcp_recv_cc() A race condition exists in the NFC LLCP connection state machine where the connection acceptance packet (CC) can be processed concurrently with socket release. This can lead to a use-after-free of the socket object. When nfc_llcp_recv_cc() moves the socket from the connecting_sockets list to the sockets list, it does so without holding the socket lock. If llcp_sock_release() is executing concurrently, it might have already unlinked the socket and dropped its references, which can result in nfc_llcp_recv_cc() linking a freed socket into the live list. Fix this by holding lock_sock() during the state transition and list movement in nfc_llcp_recv_cc(). After acquiring the lock, check if the socket is still hashed to ensure it hasn't already been unlinked and marked for destruction by the release path. This aligns the locking pattern with recv_hdlc() and recv_disc().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 3.6版本存在安全漏洞，该漏洞源于NFC LLCP连接状态机中的竞争条件，可能导致接收连接接受数据包时与套接字释放并发处理，进而导致套接字对象的释放后重用。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux a69f32af86e389dd232b1bb2269e202c1bfcc60f ~ dce85215a6c7b0fd753f577a4c487f647119884c -
Linux Linux 3.6 -

II. Public POCs for CVE-2026-64010

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III. Intelligence Information for CVE-2026-64010

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Patches & Fixes for CVE-2026-64010 (6)

Other References for CVE-2026-64010 (1)

Same Patch Batch · Linux · 2026-07-19 · 429 CVEs total

CVE-2026-63795 10.0 CRITICAL 9p: avoid putting oldfid in p9_client_walk() error path
CVE-2026-63979 9.8 CRITICAL net/handshake: hand off the pinned file reference to accept_doit
CVE-2026-53399 9.8 CRITICAL nfsd: release layout stid on setlease failure
CVE-2026-53398 9.8 CRITICAL NFSD: Fix SECINFO_NO_NAME decode error cleanup
CVE-2026-64089 9.8 CRITICAL batman-adv: tt: fix negative last_changeset_len
CVE-2026-64025 9.8 CRITICAL bpf, skmsg: fix verdict sk_data_ready racing with ktls rx
CVE-2026-64091 9.8 CRITICAL batman-adv: tt: fix TOCTOU race for reported vlans
CVE-2026-63924 9.8 CRITICAL ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo()
CVE-2026-64113 9.8 CRITICAL ixgbevf: fix use-after-free in VEPA multicast source pruning
CVE-2026-63984 9.8 CRITICAL ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress()
CVE-2026-63888 9.8 CRITICAL scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd()
CVE-2026-63800 9.8 CRITICAL pNFS: Fix use-after-free in pnfs_update_layout()
CVE-2026-64055 9.8 CRITICAL net: ethernet: cortina: Carry over frag counter
CVE-2026-63887 9.8 CRITICAL scsi: target: iscsi: Bound iscsi_encode_text_output() appends to rsp_buf
CVE-2026-64037 9.8 CRITICAL wifi: iwlwifi: mld: fix TSO segmentation explosion when AMSDU is disabled
CVE-2026-64136 9.8 CRITICAL smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()
CVE-2026-64125 9.8 CRITICAL net: bcmgenet: keep RBUF EEE/PM disabled
CVE-2026-64102 9.8 CRITICAL RDMA/siw: Reject MPA FPDU length underflow before signed receive math
CVE-2026-64033 9.8 CRITICAL RDMA/rtrs: Fix use-after-free in path file creation cleanup
CVE-2026-64061 9.8 CRITICAL netfs: Fix early put of sink folio in netfs_read_gaps()

Showing top 20 of 429 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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