BUG: memory leak unreferenced object 0xffff888119773e00 (size 512): comm "syz-executor.6", pid 6344, jiffies 4294945685 (age 12.140s) hex dump (first 32 bytes): 00 80 28 1a 81 88 ff ff 08 3e 77 19 81 88 ff ff ..(......>w..... 08 3e 77 19 81 88 ff ff 18 3e 77 19 81 88 ff ff .>w......>w..... backtrace: [] kmalloc_trace+0x24/0x90 mm/slab_common.c:1061 [] kmalloc include/linux/slab.h:580 [inline] [] kzalloc include/linux/slab.h:720 [inline] [] j1939_session_new+0x5b/0x160 net/can/j1939/transport.c:1494 [] j1939_tp_send+0x154/0x350 net/can/j1939/transport.c:2004 [] j1939_sk_send_loop net/can/j1939/socket.c:1133 [inline] [] j1939_sk_sendmsg+0x4a8/0x810 net/can/j1939/socket.c:1256 [] sock_sendmsg_nosec net/socket.c:724 [inline] [] sock_sendmsg+0x58/0xb0 net/socket.c:747 [] sock_no_sendpage+0x93/0xc0 net/core/sock.c:3235 [] kernel_sendpage net/socket.c:3580 [inline] [] kernel_sendpage+0xd1/0x2b0 net/socket.c:3574 [] sock_sendpage+0x49/0x80 net/socket.c:1080 [] pipe_to_sendpage+0xa6/0x110 fs/splice.c:454 [] splice_from_pipe_feed fs/splice.c:508 [inline] [] __splice_from_pipe+0x1f1/0x330 fs/splice.c:652 [] splice_from_pipe fs/splice.c:687 [inline] [] generic_splice_sendpage+0x73/0xb0 fs/splice.c:835 [] do_splice_from fs/splice.c:856 [inline] [] direct_splice_actor+0x4f/0x70 fs/splice.c:1022 [] splice_direct_to_actor+0x14d/0x350 fs/splice.c:977 [] do_splice_direct+0xec/0x150 fs/splice.c:1065 [] do_sendfile+0x57f/0x7d0 fs/read_write.c:1255 [] __do_sys_sendfile64 fs/read_write.c:1323 [inline] [] __se_sys_sendfile64 fs/read_write.c:1309 [inline] [] __x64_sys_sendfile64+0xe6/0x100 fs/read_write.c:1309 BUG: memory leak unreferenced object 0xffff88811a747800 (size 240): comm "syz-executor.6", pid 6344, jiffies 4294945686 (age 12.130s) hex dump (first 32 bytes): 00 7f 74 1a 81 88 ff ff 68 3e 77 19 81 88 ff ff ..t.....h>w..... 00 00 84 13 81 88 ff ff 00 68 6a 1a 81 88 ff ff .........hj..... backtrace: [] __alloc_skb+0x1fd/0x230 net/core/skbuff.c:596 [] alloc_skb include/linux/skbuff.h:1277 [inline] [] alloc_skb_with_frags+0x6e/0x340 net/core/skbuff.c:6318 [] sock_alloc_send_pskb+0x3a3/0x3e0 net/core/sock.c:2734 [] sock_alloc_send_skb include/net/sock.h:1860 [inline] [] j1939_sk_alloc_skb net/can/j1939/socket.c:864 [inline] [] j1939_sk_send_loop net/can/j1939/socket.c:1121 [inline] [] j1939_sk_sendmsg+0x2d6/0x810 net/can/j1939/socket.c:1256 [] sock_sendmsg_nosec net/socket.c:724 [inline] [] sock_sendmsg+0x58/0xb0 net/socket.c:747 [] sock_no_sendpage+0x93/0xc0 net/core/sock.c:3235 [] kernel_sendpage net/socket.c:3580 [inline] [] kernel_sendpage+0xd1/0x2b0 net/socket.c:3574 [] sock_sendpage+0x49/0x80 net/socket.c:1080 [] pipe_to_sendpage+0xa6/0x110 fs/splice.c:454 [] splice_from_pipe_feed fs/splice.c:508 [inline] [] __splice_from_pipe+0x1f1/0x330 fs/splice.c:652 [] splice_from_pipe fs/splice.c:687 [inline] [] generic_splice_sendpage+0x73/0xb0 fs/splice.c:835 [] do_splice_from fs/splice.c:856 [inline] [] direct_splice_actor+0x4f/0x70 fs/splice.c:1022 [] splice_direct_to_actor+0x14d/0x350 fs/splice.c:977 [] do_splice_direct+0xec/0x150 fs/splice.c:1065 [] do_sendfile+0x57f/0x7d0 fs/read_write.c:1255 [] __do_sys_sendfile64 fs/read_write.c:1323 [inline] [] __se_sys_sendfile64 fs/read_write.c:1309 [inline] [] __x64_sys_sendfile64+0xe6/0x100 fs/read_write.c:1309 BUG: memory leak unreferenced object 0xffff88811a747f00 (size 240): comm "syz-executor.6", pid 6344, jiffies 4294945686 (age 12.130s) hex dump (first 32 bytes): 68 3e 77 19 81 88 ff ff 00 78 74 1a 81 88 ff ff h>w......xt..... 00 00 84 13 81 88 ff ff 00 68 6a 1a 81 88 ff ff .........hj..... backtrace: [] __alloc_skb+0x1fd/0x230 net/core/skbuff.c:596 [] alloc_skb include/linux/skbuff.h:1277 [inline] [] alloc_skb_with_frags+0x6e/0x340 net/core/skbuff.c:6318 [] sock_alloc_send_pskb+0x3a3/0x3e0 net/core/sock.c:2734 [] sock_alloc_send_skb include/net/sock.h:1860 [inline] [] j1939_sk_alloc_skb net/can/j1939/socket.c:864 [inline] [] j1939_sk_send_loop net/can/j1939/socket.c:1121 [inline] [] j1939_sk_sendmsg+0x2d6/0x810 net/can/j1939/socket.c:1256 [] sock_sendmsg_nosec net/socket.c:724 [inline] [] sock_sendmsg+0x58/0xb0 net/socket.c:747 [] sock_no_sendpage+0x93/0xc0 net/core/sock.c:3235 [] kernel_sendpage net/socket.c:3580 [inline] [] kernel_sendpage+0xd1/0x2b0 net/socket.c:3574 [] sock_sendpage+0x49/0x80 net/socket.c:1080 [] pipe_to_sendpage+0xa6/0x110 fs/splice.c:454 [] splice_from_pipe_feed fs/splice.c:508 [inline] [] __splice_from_pipe+0x1f1/0x330 fs/splice.c:652 [] splice_from_pipe fs/splice.c:687 [inline] [] generic_splice_sendpage+0x73/0xb0 fs/splice.c:835 [] do_splice_from fs/splice.c:856 [inline] [] direct_splice_actor+0x4f/0x70 fs/splice.c:1022 [] splice_direct_to_actor+0x14d/0x350 fs/splice.c:977 [] do_splice_direct+0xec/0x150 fs/splice.c:1065 [] do_sendfile+0x57f/0x7d0 fs/read_write.c:1255 [] __do_sys_sendfile64 fs/read_write.c:1323 [inline] [] __se_sys_sendfile64 fs/read_write.c:1309 [inline] [] __x64_sys_sendfile64+0xe6/0x100 fs/read_write.c:1309