BUG: memory leak unreferenced object 0xffff888041c19e80 (size 96): comm "syz-executor.3", pid 20562, jiffies 4294833799 (age 149.219s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 04 00 00 00 00 00 00 00 ................ c0 7a b3 00 00 ea ff ff 00 7b b3 00 00 ea ff ff .z.......{...... backtrace: [<00000000ea609b1f>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<00000000e255f635>] skb_ext_add+0x503/0x670 net/core/skbuff.c:6319 [<00000000a06bd791>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<00000000a06bd791>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<00000000a06bd791>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<000000005692bc53>] __pskb_copy_fclone+0xec/0xc90 net/core/skbuff.c:1562 [<00000000bb8ba994>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<00000000bb8ba994>] pskb_copy include/linux/skbuff.h:3124 [inline] [<00000000bb8ba994>] hwsim_hw_xmit+0x381/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<000000004bf8610b>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<000000004bf8610b>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<000000002a8398fc>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<0000000060fd50a7>] __netdev_start_xmit include/linux/netdevice.h:4772 [inline] [<0000000060fd50a7>] netdev_start_xmit include/linux/netdevice.h:4786 [inline] [<0000000060fd50a7>] xmit_one net/core/dev.c:3576 [inline] [<0000000060fd50a7>] dev_hard_start_xmit+0x1ba/0x800 net/core/dev.c:3592 [<00000000d57b8923>] sch_direct_xmit+0x262/0x770 net/sched/sch_generic.c:336 [<00000000a2f82635>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<00000000a2f82635>] __qdisc_run+0x4b3/0x1630 net/sched/sch_generic.c:409 [<00000000dad993c1>] qdisc_run include/net/pkt_sched.h:126 [inline] [<00000000dad993c1>] qdisc_run include/net/pkt_sched.h:123 [inline] [<00000000dad993c1>] __dev_xmit_skb net/core/dev.c:3768 [inline] [<00000000dad993c1>] __dev_queue_xmit+0xd9a/0x27f0 net/core/dev.c:4122 [<000000001dc3c122>] dgram_sendmsg+0x93a/0xc50 net/ieee802154/socket.c:682 [<00000000496c9fcf>] sock_sendmsg_nosec net/socket.c:651 [inline] [<00000000496c9fcf>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000d98e1a13>] ____sys_sendmsg+0x32e/0x860 net/socket.c:2340 [<0000000007aba2a5>] ___sys_sendmsg+0xff/0x170 net/socket.c:2394 [<00000000adda5cd2>] __sys_sendmmsg+0x192/0x460 net/socket.c:2484 BUG: memory leak unreferenced object 0xffff88800fae3880 (size 96): comm "syz-executor.3", pid 21502, jiffies 4294834661 (age 148.359s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 04 00 00 00 00 00 00 00 ................ 80 0a e1 00 00 ea ff ff c0 0a e1 00 00 ea ff ff ................ backtrace: [<00000000ea609b1f>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<00000000e255f635>] skb_ext_add+0x503/0x670 net/core/skbuff.c:6319 [<00000000a06bd791>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<00000000a06bd791>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<00000000a06bd791>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<000000005692bc53>] __pskb_copy_fclone+0xec/0xc90 net/core/skbuff.c:1562 [<00000000bb8ba994>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<00000000bb8ba994>] pskb_copy include/linux/skbuff.h:3124 [inline] [<00000000bb8ba994>] hwsim_hw_xmit+0x381/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<000000004bf8610b>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<000000004bf8610b>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<000000002a8398fc>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<0000000060fd50a7>] __netdev_start_xmit include/linux/netdevice.h:4772 [inline] [<0000000060fd50a7>] netdev_start_xmit include/linux/netdevice.h:4786 [inline] [<0000000060fd50a7>] xmit_one net/core/dev.c:3576 [inline] [<0000000060fd50a7>] dev_hard_start_xmit+0x1ba/0x800 net/core/dev.c:3592 [<00000000d57b8923>] sch_direct_xmit+0x262/0x770 net/sched/sch_generic.c:336 [<00000000a2f82635>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<00000000a2f82635>] __qdisc_run+0x4b3/0x1630 net/sched/sch_generic.c:409 [<00000000dad993c1>] qdisc_run include/net/pkt_sched.h:126 [inline] [<00000000dad993c1>] qdisc_run include/net/pkt_sched.h:123 [inline] [<00000000dad993c1>] __dev_xmit_skb net/core/dev.c:3768 [inline] [<00000000dad993c1>] __dev_queue_xmit+0xd9a/0x27f0 net/core/dev.c:4122 [<000000001dc3c122>] dgram_sendmsg+0x93a/0xc50 net/ieee802154/socket.c:682 [<00000000496c9fcf>] sock_sendmsg_nosec net/socket.c:651 [inline] [<00000000496c9fcf>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000d98e1a13>] ____sys_sendmsg+0x32e/0x860 net/socket.c:2340 [<0000000007aba2a5>] ___sys_sendmsg+0xff/0x170 net/socket.c:2394 [<00000000adda5cd2>] __sys_sendmmsg+0x192/0x460 net/socket.c:2484 BUG: leak checking failed