===================================================== BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x362/0x18e0 kernel/smp.c:535 __flush_smp_call_function_queue+0x362/0x18e0 kernel/smp.c:535 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:463 __sysvec_call_function_single+0x4b/0x3e0 arch/x86/kernel/smp.c:271 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline] sysvec_call_function_single+0x7c/0x90 arch/x86/kernel/smp.c:266 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704 alloc_from_pcs mm/slub.c:4644 [inline] slab_alloc_node mm/slub.c:4773 [inline] kmem_cache_alloc_noprof+0x5af/0x1270 mm/slub.c:4795 lsm_inode_alloc security/security.c:228 [inline] security_inode_alloc+0x85/0x6c0 security/security.c:1189 inode_init_always_gfp+0x755/0x890 fs/inode.c:307 inode_init_always include/linux/fs.h:2912 [inline] alloc_inode+0x129/0x4a0 fs/inode.c:354 new_inode+0x38/0x460 fs/inode.c:1185 debugfs_get_inode fs/debugfs/inode.c:72 [inline] __debugfs_create_file+0x146/0x850 fs/debugfs/inode.c:433 debugfs_create_file_full+0x60/0x80 fs/debugfs/inode.c:460 ref_tracker_dir_debugfs+0x262/0x510 lib/ref_tracker.c:441 ref_tracker_dir_init include/linux/ref_tracker.h:70 [inline] alloc_netdev_mqs+0x2c9/0x2270 net/core/dev.c:12019 rtnl_create_link+0x505/0x1640 net/core/rtnetlink.c:3648 rtnl_newlink_create+0x300/0x1250 net/core/rtnetlink.c:3830 __rtnl_newlink net/core/rtnetlink.c:3957 [inline] rtnl_newlink+0x2b3c/0x39a0 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x106f/0x14b0 net/core/rtnetlink.c:6958 netlink_rcv_skb+0x54d/0x680 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x35/0x40 net/core/rtnetlink.c:6985 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0xf04/0x12b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x10b2/0x1250 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] __sys_sendto+0xa77/0xb90 net/socket.c:2206 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0x130/0x200 net/socket.c:2209 x64_sys_call+0x39a0/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:45 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x134/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable reuse.i created at: mas_wr_node_store lib/maple_tree.c:3495 [inline] mas_wr_store_entry+0x14bd/0x96d0 lib/maple_tree.c:3764 mas_store_prealloc+0x1834/0x1e60 lib/maple_tree.c:5169 CPU: 0 UID: 0 PID: 8604 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 =====================================================