CVE-2026-90175

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

smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer

Free it unconditionally after ksmbd_alloc_user() calls.

kmemleak splat:

unreferenced object 0xffff888103b83540 (size 192):

comm "pool-0", pid 16970, jiffies 4377290937

hex dump (first 32 bytes):

00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................

backtrace (crc 408ccc66):

__kvmalloc_node_noprof+0x730/0x920

handle_generic_event+0xec/0x1a0 [ksmbd]

genl_family_rcv_msg_doit+0xe0/0x130

genl_rcv_msg+0x181/0x290

netlink_rcv_skb+0x4f/0x100

genl_rcv+0x28/0x40

netlink_unicast+0x1e6/0x2c0

netlink_sendmsg+0x20a/0x450

____sys_sendmsg+0x2e8/0x310

___sys_sendmsg+0x78/0xc0

__sys_sendmsg+0x63/0xc0

do_syscall_64+0xa1/0x670

entry_SYSCALL_64_after_hwframe+0x76/0x7e