BUG: memory leak unreferenced object 0xffff88804d4add00 (size 96): comm "syz-executor.0", pid 27266, jiffies 4294880975 (age 460.057s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 de 01 00 00 00 00 00 00 00 ................ 08 dd 4a 4d 80 88 ff ff c8 63 f4 43 80 88 ff ff ..JM.....c.C.... backtrace: [<000000002e7f1020>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<0000000059ab27cf>] skb_ext_add+0x504/0x670 net/core/skbuff.c:6319 [<0000000030557150>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<0000000030557150>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<0000000030557150>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<00000000f668dbd4>] __pskb_copy_fclone+0xf8/0xca0 net/core/skbuff.c:1562 [<00000000b008f6ac>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<00000000b008f6ac>] pskb_copy include/linux/skbuff.h:3124 [inline] [<00000000b008f6ac>] hwsim_hw_xmit+0x382/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<000000008848f5d8>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<000000008848f5d8>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<0000000097596b59>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<000000004fcf72cd>] __netdev_start_xmit include/linux/netdevice.h:4784 [inline] [<000000004fcf72cd>] netdev_start_xmit include/linux/netdevice.h:4798 [inline] [<000000004fcf72cd>] xmit_one net/core/dev.c:3584 [inline] [<000000004fcf72cd>] dev_hard_start_xmit+0x1cb/0x840 net/core/dev.c:3600 [<00000000e69160ae>] sch_direct_xmit+0x25b/0x790 net/sched/sch_generic.c:336 [<00000000c041ffd7>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<00000000c041ffd7>] __qdisc_run+0x4aa/0x1610 net/sched/sch_generic.c:409 [<000000000ff5f69d>] qdisc_run include/net/pkt_sched.h:127 [inline] [<000000000ff5f69d>] qdisc_run include/net/pkt_sched.h:124 [inline] [<000000000ff5f69d>] __dev_xmit_skb net/core/dev.c:3776 [inline] [<000000000ff5f69d>] __dev_queue_xmit+0xd95/0x27e0 net/core/dev.c:4131 [<000000006aea5849>] dgram_sendmsg+0x937/0xc40 net/ieee802154/socket.c:682 [<000000003e9306eb>] sock_sendmsg_nosec net/socket.c:651 [inline] [<000000003e9306eb>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000ff4a0b29>] ____sys_sendmsg+0x334/0x870 net/socket.c:2342 [<0000000078d8d559>] ___sys_sendmsg+0xf3/0x170 net/socket.c:2396 [<00000000d66b8d2f>] __sys_sendmmsg+0x195/0x470 net/socket.c:2486 BUG: memory leak unreferenced object 0xffff888053cf0000 (size 96): comm "syz-executor.2", pid 181892, jiffies 4295165491 (age 175.603s) hex dump (first 32 bytes): 01 00 00 00 00 01 02 ff 03 00 00 00 00 00 00 00 ................ 22 00 00 00 00 ea ff ff 80 b1 10 01 00 ea ff ff "............... backtrace: [<000000002e7f1020>] __skb_ext_alloc+0x19/0x80 net/core/skbuff.c:6224 [<0000000059ab27cf>] skb_ext_add+0x504/0x670 net/core/skbuff.c:6319 [<0000000030557150>] skb_set_kcov_handle include/linux/skbuff.h:4622 [inline] [<0000000030557150>] skb_set_kcov_handle include/linux/skbuff.h:4612 [inline] [<0000000030557150>] __alloc_skb+0x3c1/0x620 net/core/skbuff.c:253 [<00000000f668dbd4>] __pskb_copy_fclone+0xf8/0xca0 net/core/skbuff.c:1562 [<00000000b008f6ac>] __pskb_copy include/linux/skbuff.h:1158 [inline] [<00000000b008f6ac>] pskb_copy include/linux/skbuff.h:3124 [inline] [<00000000b008f6ac>] hwsim_hw_xmit+0x382/0x6b0 drivers/net/ieee802154/mac802154_hwsim.c:132 [<000000008848f5d8>] drv_xmit_async net/mac802154/driver-ops.h:16 [inline] [<000000008848f5d8>] ieee802154_tx+0x2ab/0x470 net/mac802154/tx.c:83 [<0000000097596b59>] ieee802154_subif_start_xmit+0xbe/0xf0 net/mac802154/tx.c:132 [<000000004fcf72cd>] __netdev_start_xmit include/linux/netdevice.h:4784 [inline] [<000000004fcf72cd>] netdev_start_xmit include/linux/netdevice.h:4798 [inline] [<000000004fcf72cd>] xmit_one net/core/dev.c:3584 [inline] [<000000004fcf72cd>] dev_hard_start_xmit+0x1cb/0x840 net/core/dev.c:3600 [<00000000e69160ae>] sch_direct_xmit+0x25b/0x790 net/sched/sch_generic.c:336 [<00000000c041ffd7>] qdisc_restart net/sched/sch_generic.c:401 [inline] [<00000000c041ffd7>] __qdisc_run+0x4aa/0x1610 net/sched/sch_generic.c:409 [<000000000ff5f69d>] qdisc_run include/net/pkt_sched.h:127 [inline] [<000000000ff5f69d>] qdisc_run include/net/pkt_sched.h:124 [inline] [<000000000ff5f69d>] __dev_xmit_skb net/core/dev.c:3776 [inline] [<000000000ff5f69d>] __dev_queue_xmit+0xd95/0x27e0 net/core/dev.c:4131 [<000000006aea5849>] dgram_sendmsg+0x937/0xc40 net/ieee802154/socket.c:682 [<000000003e9306eb>] sock_sendmsg_nosec net/socket.c:651 [inline] [<000000003e9306eb>] sock_sendmsg+0x150/0x190 net/socket.c:671 [<00000000ff4a0b29>] ____sys_sendmsg+0x334/0x870 net/socket.c:2342 [<0000000078d8d559>] ___sys_sendmsg+0xf3/0x170 net/socket.c:2396 [<00000000d66b8d2f>] __sys_sendmmsg+0x195/0x470 net/socket.c:2486 BUG: leak checking failed