BUG: memory leak unreferenced object 0xffff888043f41f00 (size 96): comm "syz-executor.3", pid 8039, jiffies 4294795515 (age 371.681s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 04 00 00 00 00 00 00 00 ................ 00 bc 5c 3b 80 88 ff ff c0 1e f4 43 80 88 ff ff ..\;.......C.... backtrace: [<00000000755e3185>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<00000000a6b45018>] skb_ext_add+0x503/0x670 net/core/skbuff.c:6319 [<0000000086fd6f61>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<0000000086fd6f61>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<0000000086fd6f61>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<000000008ebc3063>] __pskb_copy_fclone+0xec/0xc90 net/core/skbuff.c:1562 [<0000000035f0328d>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<0000000035f0328d>] pskb_copy include/linux/skbuff.h:3124 [inline] [<0000000035f0328d>] hwsim_hw_xmit+0x381/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<00000000397e012f>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<00000000397e012f>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<00000000a10cce4f>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<00000000e915de85>] __netdev_start_xmit include/linux/netdevice.h:4772 [inline] [<00000000e915de85>] netdev_start_xmit include/linux/netdevice.h:4786 [inline] [<00000000e915de85>] xmit_one net/core/dev.c:3576 [inline] [<00000000e915de85>] dev_hard_start_xmit+0x1ba/0x800 net/core/dev.c:3592 [<0000000096d32f3f>] sch_direct_xmit+0x262/0x770 net/sched/sch_generic.c:336 [<0000000061284093>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<0000000061284093>] __qdisc_run+0x4b3/0x1630 net/sched/sch_generic.c:409 [<000000009af9e92c>] qdisc_run include/net/pkt_sched.h:126 [inline] [<000000009af9e92c>] qdisc_run include/net/pkt_sched.h:123 [inline] [<000000009af9e92c>] __dev_xmit_skb net/core/dev.c:3768 [inline] [<000000009af9e92c>] __dev_queue_xmit+0xd9a/0x27f0 net/core/dev.c:4122 [<000000008aa5f565>] dgram_sendmsg+0x93a/0xc50 net/ieee802154/socket.c:682 [<00000000e64e3f4c>] sock_sendmsg_nosec net/socket.c:651 [inline] [<00000000e64e3f4c>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000d523e90d>] ____sys_sendmsg+0x32e/0x860 net/socket.c:2340 [<00000000acaa056c>] ___sys_sendmsg+0xff/0x170 net/socket.c:2394 [<000000007f318a02>] __sys_sendmmsg+0x192/0x460 net/socket.c:2484 BUG: memory leak unreferenced object 0xffff888043f41580 (size 96): comm "syz-executor.3", pid 8039, jiffies 4294795570 (age 371.626s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 04 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000755e3185>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<00000000a6b45018>] skb_ext_add+0x503/0x670 net/core/skbuff.c:6319 [<0000000086fd6f61>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<0000000086fd6f61>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<0000000086fd6f61>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<000000008ebc3063>] __pskb_copy_fclone+0xec/0xc90 net/core/skbuff.c:1562 [<0000000035f0328d>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<0000000035f0328d>] pskb_copy include/linux/skbuff.h:3124 [inline] [<0000000035f0328d>] hwsim_hw_xmit+0x381/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<00000000397e012f>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<00000000397e012f>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<00000000a10cce4f>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<00000000e915de85>] __netdev_start_xmit include/linux/netdevice.h:4772 [inline] [<00000000e915de85>] netdev_start_xmit include/linux/netdevice.h:4786 [inline] [<00000000e915de85>] xmit_one net/core/dev.c:3576 [inline] [<00000000e915de85>] dev_hard_start_xmit+0x1ba/0x800 net/core/dev.c:3592 [<0000000096d32f3f>] sch_direct_xmit+0x262/0x770 net/sched/sch_generic.c:336 [<0000000061284093>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<0000000061284093>] __qdisc_run+0x4b3/0x1630 net/sched/sch_generic.c:409 [<000000009af9e92c>] qdisc_run include/net/pkt_sched.h:126 [inline] [<000000009af9e92c>] qdisc_run include/net/pkt_sched.h:123 [inline] [<000000009af9e92c>] __dev_xmit_skb net/core/dev.c:3768 [inline] [<000000009af9e92c>] __dev_queue_xmit+0xd9a/0x27f0 net/core/dev.c:4122 [<000000008aa5f565>] dgram_sendmsg+0x93a/0xc50 net/ieee802154/socket.c:682 [<00000000e64e3f4c>] sock_sendmsg_nosec net/socket.c:651 [inline] [<00000000e64e3f4c>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000d523e90d>] ____sys_sendmsg+0x32e/0x860 net/socket.c:2340 [<00000000acaa056c>] ___sys_sendmsg+0xff/0x170 net/socket.c:2394 [<000000007f318a02>] __sys_sendmmsg+0x192/0x460 net/socket.c:2484 BUG: memory leak unreferenced object 0xffff88800cfcf580 (size 96): comm "syz-executor.4", pid 13855, jiffies 4294894674 (age 272.543s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 05 00 00 00 00 00 00 00 ................ 40 91 aa 00 00 ea ff ff 80 91 aa 00 00 ea ff ff @............... backtrace: [<00000000755e3185>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<00000000a6b45018>] skb_ext_add+0x503/0x670 net/core/skbuff.c:6319 [<0000000086fd6f61>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<0000000086fd6f61>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<0000000086fd6f61>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<000000008ebc3063>] __pskb_copy_fclone+0xec/0xc90 net/core/skbuff.c:1562 [<0000000035f0328d>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<0000000035f0328d>] pskb_copy include/linux/skbuff.h:3124 [inline] [<0000000035f0328d>] hwsim_hw_xmit+0x381/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<00000000397e012f>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<00000000397e012f>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<00000000a10cce4f>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<00000000e915de85>] __netdev_start_xmit include/linux/netdevice.h:4772 [inline] [<00000000e915de85>] netdev_start_xmit include/linux/netdevice.h:4786 [inline] [<00000000e915de85>] xmit_one net/core/dev.c:3576 [inline] [<00000000e915de85>] dev_hard_start_xmit+0x1ba/0x800 net/core/dev.c:3592 [<0000000096d32f3f>] sch_direct_xmit+0x262/0x770 net/sched/sch_generic.c:336 [<0000000061284093>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<0000000061284093>] __qdisc_run+0x4b3/0x1630 net/sched/sch_generic.c:409 [<000000009af9e92c>] qdisc_run include/net/pkt_sched.h:126 [inline] [<000000009af9e92c>] qdisc_run include/net/pkt_sched.h:123 [inline] [<000000009af9e92c>] __dev_xmit_skb net/core/dev.c:3768 [inline] [<000000009af9e92c>] __dev_queue_xmit+0xd9a/0x27f0 net/core/dev.c:4122 [<000000008aa5f565>] dgram_sendmsg+0x93a/0xc50 net/ieee802154/socket.c:682 [<00000000e64e3f4c>] sock_sendmsg_nosec net/socket.c:651 [inline] [<00000000e64e3f4c>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000d523e90d>] ____sys_sendmsg+0x32e/0x860 net/socket.c:2340 [<00000000acaa056c>] ___sys_sendmsg+0xff/0x170 net/socket.c:2394 [<000000007f318a02>] __sys_sendmmsg+0x192/0x460 net/socket.c:2484 BUG: leak checking failed