executing program BUG: memory leak unreferenced object 0xffff888127a31d00 (size 256): comm "syz-executor021", pid 6501, jiffies 4294941584 (age 13.320s) hex dump (first 32 bytes): 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 00 00 00 00 00 ................ backtrace: [<000000007ab8af9c>] kmalloc include/linux/slab.h:554 [inline] [<000000007ab8af9c>] kmalloc_array include/linux/slab.h:593 [inline] [<000000007ab8af9c>] kcalloc include/linux/slab.h:605 [inline] [<000000007ab8af9c>] tcf_exts_init include/net/pkt_cls.h:229 [inline] [<000000007ab8af9c>] tcindex_alloc_perfect_hash net/sched/cls_tcindex.c:312 [inline] [<000000007ab8af9c>] tcindex_alloc_perfect_hash+0x88/0x110 net/sched/cls_tcindex.c:302 [<00000000d23dee21>] tcindex_set_parms+0x8b0/0x9d0 net/sched/cls_tcindex.c:433 [<00000000bbd39112>] tcindex_change+0xcf/0x110 net/sched/cls_tcindex.c:546 [<000000000bfd5c83>] tc_new_tfilter+0x8b0/0xe30 net/sched/cls_api.c:2129 [<00000000117c2a06>] rtnetlink_rcv_msg+0x364/0x460 net/core/rtnetlink.c:5554 [<00000000609d44e6>] netlink_rcv_skb+0x5b/0x180 net/netlink/af_netlink.c:2470 [<00000000f0464d75>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] [<00000000f0464d75>] netlink_unicast+0x2b6/0x3c0 net/netlink/af_netlink.c:1330 [<00000000ecb2e882>] netlink_sendmsg+0x2ba/0x570 net/netlink/af_netlink.c:1919 [<000000003d1e0ce9>] sock_sendmsg_nosec net/socket.c:651 [inline] [<000000003d1e0ce9>] sock_sendmsg+0x4c/0x60 net/socket.c:671 [<00000000dae9a4c9>] ____sys_sendmsg+0x118/0x2f0 net/socket.c:2359 [<000000001b163262>] ___sys_sendmsg+0x81/0xc0 net/socket.c:2413 [<00000000fb6fa354>] __sys_sendmmsg+0xda/0x230 net/socket.c:2503 [<000000006379c80c>] __do_sys_sendmmsg net/socket.c:2532 [inline] [<000000006379c80c>] __se_sys_sendmmsg net/socket.c:2529 [inline] [<000000006379c80c>] __x64_sys_sendmmsg+0x24/0x30 net/socket.c:2529 [<000000009a4c1c2c>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 [<00000000c8e70cf0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888127a31c00 (size 256): comm "syz-executor021", pid 6501, jiffies 4294941584 (age 13.320s) hex dump (first 32 bytes): 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 00 00 00 00 00 ................ backtrace: [<000000007ab8af9c>] kmalloc include/linux/slab.h:554 [inline] [<000000007ab8af9c>] kmalloc_array include/linux/slab.h:593 [inline] [<000000007ab8af9c>] kcalloc include/linux/slab.h:605 [inline] [<000000007ab8af9c>] tcf_exts_init include/net/pkt_cls.h:229 [inline] [<000000007ab8af9c>] tcindex_alloc_perfect_hash net/sched/cls_tcindex.c:312 [inline] [<000000007ab8af9c>] tcindex_alloc_perfect_hash+0x88/0x110 net/sched/cls_tcindex.c:302 [<00000000d23dee21>] tcindex_set_parms+0x8b0/0x9d0 net/sched/cls_tcindex.c:433 [<00000000bbd39112>] tcindex_change+0xcf/0x110 net/sched/cls_tcindex.c:546 [<000000000bfd5c83>] tc_new_tfilter+0x8b0/0xe30 net/sched/cls_api.c:2129 [<00000000117c2a06>] rtnetlink_rcv_msg+0x364/0x460 net/core/rtnetlink.c:5554 [<00000000609d44e6>] netlink_rcv_skb+0x5b/0x180 net/netlink/af_netlink.c:2470 [<00000000f0464d75>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] [<00000000f0464d75>] netlink_unicast+0x2b6/0x3c0 net/netlink/af_netlink.c:1330 [<00000000ecb2e882>] netlink_sendmsg+0x2ba/0x570 net/netlink/af_netlink.c:1919 [<000000003d1e0ce9>] sock_sendmsg_nosec net/socket.c:651 [inline] [<000000003d1e0ce9>] sock_sendmsg+0x4c/0x60 net/socket.c:671 [<00000000dae9a4c9>] ____sys_sendmsg+0x118/0x2f0 net/socket.c:2359 [<000000001b163262>] ___sys_sendmsg+0x81/0xc0 net/socket.c:2413 [<00000000fb6fa354>] __sys_sendmmsg+0xda/0x230 net/socket.c:2503 [<000000006379c80c>] __do_sys_sendmmsg net/socket.c:2532 [inline] [<000000006379c80c>] __se_sys_sendmmsg net/socket.c:2529 [inline] [<000000006379c80c>] __x64_sys_sendmmsg+0x24/0x30 net/socket.c:2529 [<000000009a4c1c2c>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 [<00000000c8e70cf0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888127a31b00 (size 256): comm "syz-executor021", pid 6501, jiffies 4294941584 (age 13.320s) hex dump (first 32 bytes): 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 00 00 00 00 00 ................ backtrace: [<000000007ab8af9c>] kmalloc include/linux/slab.h:554 [inline] [<000000007ab8af9c>] kmalloc_array include/linux/slab.h:593 [inline] [<000000007ab8af9c>] kcalloc include/linux/slab.h:605 [inline] [<000000007ab8af9c>] tcf_exts_init include/net/pkt_cls.h:229 [inline] [<000000007ab8af9c>] tcindex_alloc_perfect_hash net/sched/cls_tcindex.c:312 [inline] [<000000007ab8af9c>] tcindex_alloc_perfect_hash+0x88/0x110 net/sched/cls_tcindex.c:302 [<00000000d23dee21>] tcindex_set_parms+0x8b0/0x9d0 net/sched/cls_tcindex.c:433 [<00000000bbd39112>] tcindex_change+0xcf/0x110 net/sched/cls_tcindex.c:546 [<000000000bfd5c83>] tc_new_tfilter+0x8b0/0xe30 net/sched/cls_api.c:2129 [<00000000117c2a06>] rtnetlink_rcv_msg+0x364/0x460 net/core/rtnetlink.c:5554 [<00000000609d44e6>] netlink_rcv_skb+0x5b/0x180 net/netlink/af_netlink.c:2470 [<00000000f0464d75>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] [<00000000f0464d75>] netlink_unicast+0x2b6/0x3c0 net/netlink/af_netlink.c:1330 [<00000000ecb2e882>] netlink_sendmsg+0x2ba/0x570 net/netlink/af_netlink.c:1919 [<000000003d1e0ce9>] sock_sendmsg_nosec net/socket.c:651 [inline] [<000000003d1e0ce9>] sock_sendmsg+0x4c/0x60 net/socket.c:671 [<00000000dae9a4c9>] ____sys_sendmsg+0x118/0x2f0 net/socket.c:2359 [<000000001b163262>] ___sys_sendmsg+0x81/0xc0 net/socket.c:2413 [<00000000fb6fa354>] __sys_sendmmsg+0xda/0x230 net/socket.c:2503 [<000000006379c80c>] __do_sys_sendmmsg net/socket.c:2532 [inline] [<000000006379c80c>] __se_sys_sendmmsg net/socket.c:2529 [inline] [<000000006379c80c>] __x64_sys_sendmmsg+0x24/0x30 net/socket.c:2529 [<000000009a4c1c2c>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 [<00000000c8e70cf0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9