BUG: memory leak unreferenced object 0xffff8880527b0c00 (size 96): comm "syz-executor.6", pid 104043, jiffies 4294937008 (age 55.655s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 07 00 00 00 00 00 00 00 ................ e8 bb b5 1a 80 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000bc787789>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<000000003525dc99>] skb_ext_add+0x503/0x670 net/core/skbuff.c:6319 [<000000002eff95f6>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<000000002eff95f6>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<000000002eff95f6>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<000000007ad4304e>] __pskb_copy_fclone+0xec/0xc90 net/core/skbuff.c:1562 [<00000000656a78dc>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<00000000656a78dc>] pskb_copy include/linux/skbuff.h:3124 [inline] [<00000000656a78dc>] hwsim_hw_xmit+0x381/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<00000000d12407d2>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<00000000d12407d2>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<00000000575177a9>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<00000000186abdba>] __netdev_start_xmit include/linux/netdevice.h:4772 [inline] [<00000000186abdba>] netdev_start_xmit include/linux/netdevice.h:4786 [inline] [<00000000186abdba>] xmit_one net/core/dev.c:3576 [inline] [<00000000186abdba>] dev_hard_start_xmit+0x1ba/0x800 net/core/dev.c:3592 [<00000000c5113aab>] sch_direct_xmit+0x262/0x770 net/sched/sch_generic.c:336 [<00000000b79bb7c5>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<00000000b79bb7c5>] __qdisc_run+0x4b3/0x1630 net/sched/sch_generic.c:409 [<000000003bb4484d>] qdisc_run include/net/pkt_sched.h:126 [inline] [<000000003bb4484d>] qdisc_run include/net/pkt_sched.h:123 [inline] [<000000003bb4484d>] __dev_xmit_skb net/core/dev.c:3768 [inline] [<000000003bb4484d>] __dev_queue_xmit+0xd9a/0x27f0 net/core/dev.c:4122 [<000000001f8d187d>] dgram_sendmsg+0x93a/0xc50 net/ieee802154/socket.c:682 [<00000000ba1b5362>] sock_sendmsg_nosec net/socket.c:651 [inline] [<00000000ba1b5362>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000de7f1b5b>] ____sys_sendmsg+0x32e/0x860 net/socket.c:2340 [<000000009fe350be>] ___sys_sendmsg+0xff/0x170 net/socket.c:2394 [<00000000f094904a>] __sys_sendmmsg+0x192/0x460 net/socket.c:2484 BUG: memory leak unreferenced object 0xffff88804ac1e000 (size 96): comm "syz-executor.6", pid 104634, jiffies 4294937620 (age 55.045s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 07 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000bc787789>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<000000003525dc99>] skb_ext_add+0x503/0x670 net/core/skbuff.c:6319 [<000000002eff95f6>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<000000002eff95f6>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<000000002eff95f6>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<000000007ad4304e>] __pskb_copy_fclone+0xec/0xc90 net/core/skbuff.c:1562 [<00000000656a78dc>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<00000000656a78dc>] pskb_copy include/linux/skbuff.h:3124 [inline] [<00000000656a78dc>] hwsim_hw_xmit+0x381/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<00000000d12407d2>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<00000000d12407d2>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<00000000575177a9>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<00000000186abdba>] __netdev_start_xmit include/linux/netdevice.h:4772 [inline] [<00000000186abdba>] netdev_start_xmit include/linux/netdevice.h:4786 [inline] [<00000000186abdba>] xmit_one net/core/dev.c:3576 [inline] [<00000000186abdba>] dev_hard_start_xmit+0x1ba/0x800 net/core/dev.c:3592 [<00000000c5113aab>] sch_direct_xmit+0x262/0x770 net/sched/sch_generic.c:336 [<00000000b79bb7c5>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<00000000b79bb7c5>] __qdisc_run+0x4b3/0x1630 net/sched/sch_generic.c:409 [<000000003bb4484d>] qdisc_run include/net/pkt_sched.h:126 [inline] [<000000003bb4484d>] qdisc_run include/net/pkt_sched.h:123 [inline] [<000000003bb4484d>] __dev_xmit_skb net/core/dev.c:3768 [inline] [<000000003bb4484d>] __dev_queue_xmit+0xd9a/0x27f0 net/core/dev.c:4122 [<000000001f8d187d>] dgram_sendmsg+0x93a/0xc50 net/ieee802154/socket.c:682 [<00000000ba1b5362>] sock_sendmsg_nosec net/socket.c:651 [inline] [<00000000ba1b5362>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000de7f1b5b>] ____sys_sendmsg+0x32e/0x860 net/socket.c:2340 [<000000009fe350be>] ___sys_sendmsg+0xff/0x170 net/socket.c:2394 [<00000000f094904a>] __sys_sendmmsg+0x192/0x460 net/socket.c:2484 BUG: leak checking failed