BUG: memory leak unreferenced object 0xffff888118872c00 (size 64): comm "syz-executor.0", pid 8392, jiffies 4294967547 (age 15.350s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 f0 05 a6 83 ff ff ff ff ................ 80 aa 92 18 81 88 ff ff 00 76 12 16 81 88 ff ff .........v...... backtrace: [] kmalloc_node include/linux/slab.h:579 [inline] [] kvmalloc_node+0x61/0xf0 mm/util.c:587 [] kvmalloc include/linux/mm.h:804 [inline] [] kvzalloc include/linux/mm.h:812 [inline] [] allocate_hook_entries_size net/netfilter/core.c:61 [inline] [] nf_hook_entries_grow+0x31b/0x370 net/netfilter/core.c:128 [] __nf_register_net_hook+0x8d/0x290 net/netfilter/core.c:407 [] nf_register_net_hook+0xbf/0x100 net/netfilter/core.c:541 [] nf_register_net_hooks+0x59/0xc0 net/netfilter/core.c:557 [] arpt_register_table+0x152/0x1e0 net/ipv4/netfilter/arp_tables.c:1548 [] arptable_filter_table_init+0x3d/0x60 net/ipv4/netfilter/arptable_filter.c:50 [] xt_find_table_lock+0x189/0x290 net/netfilter/x_tables.c:1244 [] xt_request_find_table_lock+0x27/0xb0 net/netfilter/x_tables.c:1275 [] get_info+0xd2/0x430 net/ipv4/netfilter/arp_tables.c:807 [] do_arpt_get_ctl+0x224/0x520 net/ipv4/netfilter/arp_tables.c:1443 [] nf_getsockopt+0x57/0x80 net/netfilter/nf_sockopt.c:116 [] ip_getsockopt net/ipv4/ip_sockglue.c:1777 [inline] [] ip_getsockopt+0xfa/0x140 net/ipv4/ip_sockglue.c:1756 [] tcp_getsockopt+0x4b/0x80 net/ipv4/tcp.c:4251 [] __sys_getsockopt+0x133/0x2f0 net/socket.c:2161 [] __do_sys_getsockopt net/socket.c:2176 [inline] [] __se_sys_getsockopt net/socket.c:2173 [inline] [] __x64_sys_getsockopt+0x22/0x30 net/socket.c:2173 BUG: memory leak unreferenced object 0xffff8881163e5300 (size 64): comm "syz-executor.0", pid 8392, jiffies 4294967547 (age 15.350s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 f0 05 a6 83 ff ff ff ff ................ 80 aa 92 18 81 88 ff ff 50 76 12 16 81 88 ff ff ........Pv...... backtrace: [] kmalloc_node include/linux/slab.h:579 [inline] [] kvmalloc_node+0x61/0xf0 mm/util.c:587 [] kvmalloc include/linux/mm.h:804 [inline] [] kvzalloc include/linux/mm.h:812 [inline] [] allocate_hook_entries_size net/netfilter/core.c:61 [inline] [] nf_hook_entries_grow+0x31b/0x370 net/netfilter/core.c:128 [] __nf_register_net_hook+0x8d/0x290 net/netfilter/core.c:407 [] nf_register_net_hook+0xbf/0x100 net/netfilter/core.c:541 [] nf_register_net_hooks+0x59/0xc0 net/netfilter/core.c:557 [] arpt_register_table+0x152/0x1e0 net/ipv4/netfilter/arp_tables.c:1548 [] arptable_filter_table_init+0x3d/0x60 net/ipv4/netfilter/arptable_filter.c:50 [] xt_find_table_lock+0x189/0x290 net/netfilter/x_tables.c:1244 [] xt_request_find_table_lock+0x27/0xb0 net/netfilter/x_tables.c:1275 [] get_info+0xd2/0x430 net/ipv4/netfilter/arp_tables.c:807 [] do_arpt_get_ctl+0x224/0x520 net/ipv4/netfilter/arp_tables.c:1443 [] nf_getsockopt+0x57/0x80 net/netfilter/nf_sockopt.c:116 [] ip_getsockopt net/ipv4/ip_sockglue.c:1777 [inline] [] ip_getsockopt+0xfa/0x140 net/ipv4/ip_sockglue.c:1756 [] tcp_getsockopt+0x4b/0x80 net/ipv4/tcp.c:4251 [] __sys_getsockopt+0x133/0x2f0 net/socket.c:2161 [] __do_sys_getsockopt net/socket.c:2176 [inline] [] __se_sys_getsockopt net/socket.c:2173 [inline] [] __x64_sys_getsockopt+0x22/0x30 net/socket.c:2173 BUG: memory leak unreferenced object 0xffff888112045040 (size 64): comm "kworker/u4:3", pid 880, jiffies 4294968278 (age 8.040s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 f0 05 a6 83 ff ff ff ff ................ 80 aa 92 18 81 88 ff ff 28 76 12 16 81 88 ff ff ........(v...... backtrace: [] kmalloc_node include/linux/slab.h:579 [inline] [] kvmalloc_node+0x61/0xf0 mm/util.c:587 [] kvmalloc include/linux/mm.h:804 [inline] [] kvzalloc include/linux/mm.h:812 [inline] [] allocate_hook_entries_size net/netfilter/core.c:61 [inline] [] __nf_hook_entries_try_shrink+0xfd/0x210 net/netfilter/core.c:248 [] __nf_unregister_net_hook+0x17b/0x280 net/netfilter/core.c:483 [] nf_unregister_net_hook+0x82/0xb0 net/netfilter/core.c:502 [] ops_exit_list+0x41/0x80 net/core/net_namespace.c:175 [] cleanup_net+0x2c1/0x4d0 net/core/net_namespace.c:595 [] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275 [] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421 [] kthread+0x178/0x1b0 kernel/kthread.c:313 [] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294