BUG: memory leak
unreferenced object 0xffff8881221f1400 (size 240):
  comm "syz-executor.6", pid 5733, jiffies 4294945576 (age 17.230s)
  hex dump (first 32 bytes):
    00 12 1f 22 81 88 ff ff 68 16 38 22 81 88 ff ff  ..."....h.8"....
    00 80 4a 0f 81 88 ff ff 00 a4 18 22 81 88 ff ff  ..J........"....
  backtrace:
    [<ffffffff83b0d9f2>] __alloc_skb+0x202/0x270 net/core/skbuff.c:552
    [<ffffffff83b1205a>] alloc_skb include/linux/skbuff.h:1270 [inline]
    [<ffffffff83b1205a>] alloc_skb_with_frags+0x6a/0x340 net/core/skbuff.c:6195
    [<ffffffff83b0440f>] sock_alloc_send_pskb+0x39f/0x3d0 net/core/sock.c:2741
    [<ffffffff84131ad2>] sock_alloc_send_skb include/net/sock.h:1888 [inline]
    [<ffffffff84131ad2>] j1939_sk_alloc_skb net/can/j1939/socket.c:864 [inline]
    [<ffffffff84131ad2>] j1939_sk_send_loop net/can/j1939/socket.c:1121 [inline]
    [<ffffffff84131ad2>] j1939_sk_sendmsg+0x2d2/0x810 net/can/j1939/socket.c:1256
    [<ffffffff83af9096>] sock_sendmsg_nosec net/socket.c:714 [inline]
    [<ffffffff83af9096>] sock_sendmsg+0x56/0x80 net/socket.c:734
    [<ffffffff83afffaf>] sock_no_sendpage+0x8f/0xc0 net/core/sock.c:3241
    [<ffffffff83af9c1d>] kernel_sendpage net/socket.c:3555 [inline]
    [<ffffffff83af9c1d>] kernel_sendpage+0xcd/0x2b0 net/socket.c:3549
    [<ffffffff83af9e40>] sock_sendpage+0x40/0x50 net/socket.c:1054
    [<ffffffff81669b92>] pipe_to_sendpage+0xa2/0x110 fs/splice.c:361
    [<ffffffff8166afad>] splice_from_pipe_feed fs/splice.c:415 [inline]
    [<ffffffff8166afad>] __splice_from_pipe+0x1ed/0x330 fs/splice.c:559
    [<ffffffff8166b89f>] splice_from_pipe fs/splice.c:594 [inline]
    [<ffffffff8166b89f>] generic_splice_sendpage+0x6f/0xa0 fs/splice.c:743
    [<ffffffff81669c4b>] do_splice_from fs/splice.c:764 [inline]
    [<ffffffff81669c4b>] direct_splice_actor+0x4b/0x70 fs/splice.c:931
    [<ffffffff8166a3e9>] splice_direct_to_actor+0x149/0x350 fs/splice.c:886
    [<ffffffff8166a6d8>] do_splice_direct+0xe8/0x150 fs/splice.c:974
    [<ffffffff8160698f>] do_sendfile+0x57f/0x7e0 fs/read_write.c:1255
    [<ffffffff8160a782>] __do_sys_sendfile64 fs/read_write.c:1323 [inline]
    [<ffffffff8160a782>] __se_sys_sendfile64 fs/read_write.c:1309 [inline]
    [<ffffffff8160a782>] __x64_sys_sendfile64+0xe2/0x100 fs/read_write.c:1309

BUG: memory leak
unreferenced object 0xffff888122381600 (size 512):
  comm "syz-executor.6", pid 5733, jiffies 4294945576 (age 17.230s)
  hex dump (first 32 bytes):
    00 20 f8 22 81 88 ff ff 08 16 38 22 81 88 ff ff  . ."......8"....
    08 16 38 22 81 88 ff ff 18 16 38 22 81 88 ff ff  ..8"......8"....
  backtrace:
    [<ffffffff814f94a0>] kmalloc_trace+0x20/0x90 mm/slab_common.c:1062
    [<ffffffff8413309b>] kmalloc include/linux/slab.h:580 [inline]
    [<ffffffff8413309b>] kzalloc include/linux/slab.h:720 [inline]
    [<ffffffff8413309b>] j1939_session_new+0x5b/0x160 net/can/j1939/transport.c:1491
    [<ffffffff84138390>] j1939_tp_send+0x150/0x350 net/can/j1939/transport.c:2001
    [<ffffffff84131ca4>] j1939_sk_send_loop net/can/j1939/socket.c:1133 [inline]
    [<ffffffff84131ca4>] j1939_sk_sendmsg+0x4a4/0x810 net/can/j1939/socket.c:1256
    [<ffffffff83af9096>] sock_sendmsg_nosec net/socket.c:714 [inline]
    [<ffffffff83af9096>] sock_sendmsg+0x56/0x80 net/socket.c:734
    [<ffffffff83afffaf>] sock_no_sendpage+0x8f/0xc0 net/core/sock.c:3241
    [<ffffffff83af9c1d>] kernel_sendpage net/socket.c:3555 [inline]
    [<ffffffff83af9c1d>] kernel_sendpage+0xcd/0x2b0 net/socket.c:3549
    [<ffffffff83af9e40>] sock_sendpage+0x40/0x50 net/socket.c:1054
    [<ffffffff81669b92>] pipe_to_sendpage+0xa2/0x110 fs/splice.c:361
    [<ffffffff8166afad>] splice_from_pipe_feed fs/splice.c:415 [inline]
    [<ffffffff8166afad>] __splice_from_pipe+0x1ed/0x330 fs/splice.c:559
    [<ffffffff8166b89f>] splice_from_pipe fs/splice.c:594 [inline]
    [<ffffffff8166b89f>] generic_splice_sendpage+0x6f/0xa0 fs/splice.c:743
    [<ffffffff81669c4b>] do_splice_from fs/splice.c:764 [inline]
    [<ffffffff81669c4b>] direct_splice_actor+0x4b/0x70 fs/splice.c:931
    [<ffffffff8166a3e9>] splice_direct_to_actor+0x149/0x350 fs/splice.c:886
    [<ffffffff8166a6d8>] do_splice_direct+0xe8/0x150 fs/splice.c:974
    [<ffffffff8160698f>] do_sendfile+0x57f/0x7e0 fs/read_write.c:1255
    [<ffffffff8160a782>] __do_sys_sendfile64 fs/read_write.c:1323 [inline]
    [<ffffffff8160a782>] __se_sys_sendfile64 fs/read_write.c:1309 [inline]
    [<ffffffff8160a782>] __x64_sys_sendfile64+0xe2/0x100 fs/read_write.c:1309

BUG: memory leak
unreferenced object 0xffff8881221f1200 (size 240):
  comm "syz-executor.6", pid 5733, jiffies 4294945576 (age 17.230s)
  hex dump (first 32 bytes):
    00 eb 1a 22 81 88 ff ff 00 14 1f 22 81 88 ff ff  ..."......."....
    00 80 4a 0f 81 88 ff ff 00 a4 18 22 81 88 ff ff  ..J........"....
  backtrace:
    [<ffffffff83b0d9f2>] __alloc_skb+0x202/0x270 net/core/skbuff.c:552
    [<ffffffff83b1205a>] alloc_skb include/linux/skbuff.h:1270 [inline]
    [<ffffffff83b1205a>] alloc_skb_with_frags+0x6a/0x340 net/core/skbuff.c:6195
    [<ffffffff83b0440f>] sock_alloc_send_pskb+0x39f/0x3d0 net/core/sock.c:2741
    [<ffffffff84131ad2>] sock_alloc_send_skb include/net/sock.h:1888 [inline]
    [<ffffffff84131ad2>] j1939_sk_alloc_skb net/can/j1939/socket.c:864 [inline]
    [<ffffffff84131ad2>] j1939_sk_send_loop net/can/j1939/socket.c:1121 [inline]
    [<ffffffff84131ad2>] j1939_sk_sendmsg+0x2d2/0x810 net/can/j1939/socket.c:1256
    [<ffffffff83af9096>] sock_sendmsg_nosec net/socket.c:714 [inline]
    [<ffffffff83af9096>] sock_sendmsg+0x56/0x80 net/socket.c:734
    [<ffffffff83afffaf>] sock_no_sendpage+0x8f/0xc0 net/core/sock.c:3241
    [<ffffffff83af9c1d>] kernel_sendpage net/socket.c:3555 [inline]
    [<ffffffff83af9c1d>] kernel_sendpage+0xcd/0x2b0 net/socket.c:3549
    [<ffffffff83af9e40>] sock_sendpage+0x40/0x50 net/socket.c:1054
    [<ffffffff81669b92>] pipe_to_sendpage+0xa2/0x110 fs/splice.c:361
    [<ffffffff8166afad>] splice_from_pipe_feed fs/splice.c:415 [inline]
    [<ffffffff8166afad>] __splice_from_pipe+0x1ed/0x330 fs/splice.c:559
    [<ffffffff8166b89f>] splice_from_pipe fs/splice.c:594 [inline]
    [<ffffffff8166b89f>] generic_splice_sendpage+0x6f/0xa0 fs/splice.c:743
    [<ffffffff81669c4b>] do_splice_from fs/splice.c:764 [inline]
    [<ffffffff81669c4b>] direct_splice_actor+0x4b/0x70 fs/splice.c:931
    [<ffffffff8166a3e9>] splice_direct_to_actor+0x149/0x350 fs/splice.c:886
    [<ffffffff8166a6d8>] do_splice_direct+0xe8/0x150 fs/splice.c:974
    [<ffffffff8160698f>] do_sendfile+0x57f/0x7e0 fs/read_write.c:1255
    [<ffffffff8160a782>] __do_sys_sendfile64 fs/read_write.c:1323 [inline]
    [<ffffffff8160a782>] __se_sys_sendfile64 fs/read_write.c:1309 [inline]
    [<ffffffff8160a782>] __x64_sys_sendfile64+0xe2/0x100 fs/read_write.c:1309