CVE-2026-23330

Summary

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

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/66083581945bd5b8e99fe49b5aeb83d03f62d053 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/66083581945bd5b8e99fe49b5aeb83d03f62d053Patch
• https://git.kernel.org/stable/c/702029337b057085ea13f964822dcd95e0fe53f5Patch
• https://git.kernel.org/stable/c/91ff0d8c3464da7f0c43da38c195e60b660128bfPatch
• https://git.kernel.org/stable/c/d05f55d68ebdebb2b0a8480d766eaae88c8c92dePatch
• https://git.kernel.org/stable/c/75fdb22ef0635c02337de0c08c98f93f37b5cbee
• https://git.kernel.org/stable/c/9df613ef6e8e873cdab969a11f74823488977f1f