BUG: memory leak
unreferenced object 0xffff888125f6ca00 (size 512):
  comm "syz-executor.5", pid 4247, jiffies 4294944564 (age 11.750s)
  hex dump (first 32 bytes):
    00 c0 75 27 81 88 ff ff 08 ca f6 25 81 88 ff ff  ..u'.......%....
    08 ca f6 25 81 88 ff ff 18 ca f6 25 81 88 ff ff  ...%.......%....
  backtrace:
    [<ffffffff814cf9f0>] kmalloc_trace+0x20/0x90 mm/slab_common.c:1046
    [<ffffffff83e6144b>] kmalloc include/linux/slab.h:576 [inline]
    [<ffffffff83e6144b>] kzalloc include/linux/slab.h:712 [inline]
    [<ffffffff83e6144b>] j1939_session_new+0x5b/0x160 net/can/j1939/transport.c:1489
    [<ffffffff83e66730>] j1939_tp_send+0x150/0x350 net/can/j1939/transport.c:1999
    [<ffffffff83e60054>] j1939_sk_send_loop net/can/j1939/socket.c:1133 [inline]
    [<ffffffff83e60054>] j1939_sk_sendmsg+0x4a4/0x810 net/can/j1939/socket.c:1256
    [<ffffffff8383e796>] sock_sendmsg_nosec net/socket.c:714 [inline]
    [<ffffffff8383e796>] sock_sendmsg+0x56/0x80 net/socket.c:734
    [<ffffffff838456bf>] sock_no_sendpage+0x8f/0xc0 net/core/sock.c:3219
    [<ffffffff8383f31d>] kernel_sendpage net/socket.c:3561 [inline]
    [<ffffffff8383f31d>] kernel_sendpage+0xcd/0x2b0 net/socket.c:3555
    [<ffffffff8383f540>] sock_sendpage+0x40/0x50 net/socket.c:1054
    [<ffffffff8163bc12>] pipe_to_sendpage+0xa2/0x110 fs/splice.c:361
    [<ffffffff8163d02d>] splice_from_pipe_feed fs/splice.c:415 [inline]
    [<ffffffff8163d02d>] __splice_from_pipe+0x1ed/0x330 fs/splice.c:559
    [<ffffffff8163d91f>] splice_from_pipe fs/splice.c:594 [inline]
    [<ffffffff8163d91f>] generic_splice_sendpage+0x6f/0xa0 fs/splice.c:743
    [<ffffffff8163bccb>] do_splice_from fs/splice.c:764 [inline]
    [<ffffffff8163bccb>] direct_splice_actor+0x4b/0x70 fs/splice.c:931
    [<ffffffff8163c469>] splice_direct_to_actor+0x149/0x350 fs/splice.c:886
    [<ffffffff8163c758>] do_splice_direct+0xe8/0x150 fs/splice.c:974
    [<ffffffff815d8f1f>] do_sendfile+0x57f/0x7e0 fs/read_write.c:1255
    [<ffffffff815dcd12>] __do_sys_sendfile64 fs/read_write.c:1323 [inline]
    [<ffffffff815dcd12>] __se_sys_sendfile64 fs/read_write.c:1309 [inline]
    [<ffffffff815dcd12>] __x64_sys_sendfile64+0xe2/0x100 fs/read_write.c:1309

BUG: memory leak
unreferenced object 0xffff88812765d500 (size 240):
  comm "syz-executor.5", pid 4247, jiffies 4294944564 (age 11.750s)
  hex dump (first 32 bytes):
    00 d4 65 27 81 88 ff ff 68 ca f6 25 81 88 ff ff  ..e'....h..%....
    00 80 12 11 81 88 ff ff 00 90 ea 26 81 88 ff ff  ...........&....
  backtrace:
    [<ffffffff83850789>] __alloc_skb+0x1f9/0x270 net/core/skbuff.c:497
    [<ffffffff8385734a>] alloc_skb include/linux/skbuff.h:1267 [inline]
    [<ffffffff8385734a>] alloc_skb_with_frags+0x6a/0x340 net/core/skbuff.c:6124
    [<ffffffff83849aaf>] sock_alloc_send_pskb+0x39f/0x3d0 net/core/sock.c:2719
    [<ffffffff83e5fe82>] sock_alloc_send_skb include/net/sock.h:1884 [inline]
    [<ffffffff83e5fe82>] j1939_sk_alloc_skb net/can/j1939/socket.c:864 [inline]
    [<ffffffff83e5fe82>] j1939_sk_send_loop net/can/j1939/socket.c:1121 [inline]
    [<ffffffff83e5fe82>] j1939_sk_sendmsg+0x2d2/0x810 net/can/j1939/socket.c:1256
    [<ffffffff8383e796>] sock_sendmsg_nosec net/socket.c:714 [inline]
    [<ffffffff8383e796>] sock_sendmsg+0x56/0x80 net/socket.c:734
    [<ffffffff838456bf>] sock_no_sendpage+0x8f/0xc0 net/core/sock.c:3219
    [<ffffffff8383f31d>] kernel_sendpage net/socket.c:3561 [inline]
    [<ffffffff8383f31d>] kernel_sendpage+0xcd/0x2b0 net/socket.c:3555
    [<ffffffff8383f540>] sock_sendpage+0x40/0x50 net/socket.c:1054
    [<ffffffff8163bc12>] pipe_to_sendpage+0xa2/0x110 fs/splice.c:361
    [<ffffffff8163d02d>] splice_from_pipe_feed fs/splice.c:415 [inline]
    [<ffffffff8163d02d>] __splice_from_pipe+0x1ed/0x330 fs/splice.c:559
    [<ffffffff8163d91f>] splice_from_pipe fs/splice.c:594 [inline]
    [<ffffffff8163d91f>] generic_splice_sendpage+0x6f/0xa0 fs/splice.c:743
    [<ffffffff8163bccb>] do_splice_from fs/splice.c:764 [inline]
    [<ffffffff8163bccb>] direct_splice_actor+0x4b/0x70 fs/splice.c:931
    [<ffffffff8163c469>] splice_direct_to_actor+0x149/0x350 fs/splice.c:886
    [<ffffffff8163c758>] do_splice_direct+0xe8/0x150 fs/splice.c:974
    [<ffffffff815d8f1f>] do_sendfile+0x57f/0x7e0 fs/read_write.c:1255
    [<ffffffff815dcd12>] __do_sys_sendfile64 fs/read_write.c:1323 [inline]
    [<ffffffff815dcd12>] __se_sys_sendfile64 fs/read_write.c:1309 [inline]
    [<ffffffff815dcd12>] __x64_sys_sendfile64+0xe2/0x100 fs/read_write.c:1309

BUG: memory leak
unreferenced object 0xffff88812765d400 (size 240):
  comm "syz-executor.5", pid 4247, jiffies 4294944564 (age 11.750s)
  hex dump (first 32 bytes):
    68 ca f6 25 81 88 ff ff 00 d5 65 27 81 88 ff ff  h..%......e'....
    00 80 12 11 81 88 ff ff 00 90 ea 26 81 88 ff ff  ...........&....
  backtrace:
    [<ffffffff83850789>] __alloc_skb+0x1f9/0x270 net/core/skbuff.c:497
    [<ffffffff8385734a>] alloc_skb include/linux/skbuff.h:1267 [inline]
    [<ffffffff8385734a>] alloc_skb_with_frags+0x6a/0x340 net/core/skbuff.c:6124
    [<ffffffff83849aaf>] sock_alloc_send_pskb+0x39f/0x3d0 net/core/sock.c:2719
    [<ffffffff83e5fe82>] sock_alloc_send_skb include/net/sock.h:1884 [inline]
    [<ffffffff83e5fe82>] j1939_sk_alloc_skb net/can/j1939/socket.c:864 [inline]
    [<ffffffff83e5fe82>] j1939_sk_send_loop net/can/j1939/socket.c:1121 [inline]
    [<ffffffff83e5fe82>] j1939_sk_sendmsg+0x2d2/0x810 net/can/j1939/socket.c:1256
    [<ffffffff8383e796>] sock_sendmsg_nosec net/socket.c:714 [inline]
    [<ffffffff8383e796>] sock_sendmsg+0x56/0x80 net/socket.c:734
    [<ffffffff838456bf>] sock_no_sendpage+0x8f/0xc0 net/core/sock.c:3219
    [<ffffffff8383f31d>] kernel_sendpage net/socket.c:3561 [inline]
    [<ffffffff8383f31d>] kernel_sendpage+0xcd/0x2b0 net/socket.c:3555
    [<ffffffff8383f540>] sock_sendpage+0x40/0x50 net/socket.c:1054
    [<ffffffff8163bc12>] pipe_to_sendpage+0xa2/0x110 fs/splice.c:361
    [<ffffffff8163d02d>] splice_from_pipe_feed fs/splice.c:415 [inline]
    [<ffffffff8163d02d>] __splice_from_pipe+0x1ed/0x330 fs/splice.c:559
    [<ffffffff8163d91f>] splice_from_pipe fs/splice.c:594 [inline]
    [<ffffffff8163d91f>] generic_splice_sendpage+0x6f/0xa0 fs/splice.c:743
    [<ffffffff8163bccb>] do_splice_from fs/splice.c:764 [inline]
    [<ffffffff8163bccb>] direct_splice_actor+0x4b/0x70 fs/splice.c:931
    [<ffffffff8163c469>] splice_direct_to_actor+0x149/0x350 fs/splice.c:886
    [<ffffffff8163c758>] do_splice_direct+0xe8/0x150 fs/splice.c:974
    [<ffffffff815d8f1f>] do_sendfile+0x57f/0x7e0 fs/read_write.c:1255
    [<ffffffff815dcd12>] __do_sys_sendfile64 fs/read_write.c:1323 [inline]
    [<ffffffff815dcd12>] __se_sys_sendfile64 fs/read_write.c:1309 [inline]
    [<ffffffff815dcd12>] __x64_sys_sendfile64+0xe2/0x100 fs/read_write.c:1309