CVE-2026-23330 PUBLISHED

nfc: nci: complete pending data exchange on device close

Assigner: Linux
Reserved: 13.01.2026 Published: 25.03.2026 Updated: 25.03.2026

In the Linux kernel, the following vulnerability has been resolved:

nfc: nci: complete pending data exchange on device close

In nci_close_device(), complete any pending data exchange before closing. The data exchange callback (e.g. rawsock_data_exchange_complete) holds a socket reference.

NIPA occasionally hits this leak:

unreferenced object 0xff1100000f435000 (size 2048): comm "nci_dev", pid 3954, jiffies 4295441245 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 27 00 01 40 00 00 00 00 00 00 00 00 00 00 00 00 '..@............ backtrace (crc ec2b3c5): __kmalloc_noprof+0x4db/0x730 sk_prot_alloc.isra.0+0xe4/0x1d0 sk_alloc+0x36/0x760 rawsock_create+0xd1/0x540 nfc_sock_create+0x11f/0x280 __sock_create+0x22d/0x630 __sys_socket+0x115/0x1d0 __x64_sys_socket+0x72/0xd0 do_syscall_64+0x117/0xfc0 entry_SYSCALL_64_after_hwframe+0x4b/0x53

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 38f04c6b1b682f1879441e2925403ad9aff9e229 to 91ff0d8c3464da7f0c43da38c195e60b660128bf (excl.)
  • affected from 38f04c6b1b682f1879441e2925403ad9aff9e229 to d05f55d68ebdebb2b0a8480d766eaae88c8c92de (excl.)
  • affected from 38f04c6b1b682f1879441e2925403ad9aff9e229 to 66083581945bd5b8e99fe49b5aeb83d03f62d053 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 3.2 is affected
  • unaffected from 0 to 3.2 (excl.)
  • unaffected from 6.18.17 to 6.18.* (incl.)
  • unaffected from 6.19.7 to 6.19.* (incl.)
  • unaffected from 7.0-rc3 to * (incl.)

References