syzbot

][ T3037] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready
executing program
BUG: memory leak
unreferenced object 0xffff888113404800 (size 512):
  comm "syz-executor219", pid 7170, jiffies 4294943685 (age 9.340s)
  hex dump (first 32 bytes):
    0d 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00  ................
    d2 7a d4 99 ba 43 fe ef 6f 66 69 6c 65 3d 30 20  .z...C..ofile=0 
  backtrace:
    [<000000000d3cd43d>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<000000000d3cd43d>] slab_post_alloc_hook mm/slab.h:439 [inline]
    [<000000000d3cd43d>] slab_alloc_node mm/slab.c:3269 [inline]
    [<000000000d3cd43d>] kmem_cache_alloc_node_trace+0x15b/0x2a0 mm/slab.c:3597
    [<00000000abb552fa>] __do_kmalloc_node mm/slab.c:3619 [inline]
    [<00000000abb552fa>] __kmalloc_node_track_caller+0x38/0x50 mm/slab.c:3634
    [<00000000f11b1287>] __kmalloc_reserve.isra.0+0x40/0xb0 net/core/skbuff.c:138
    [<00000000303f99b4>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
    [<0000000066939bcc>] alloc_skb include/linux/skbuff.h:1054 [inline]
    [<0000000066939bcc>] alloc_skb_with_frags+0x5f/0x250 net/core/skbuff.c:5327
    [<00000000d64767de>] sock_alloc_send_pskb+0x269/0x2a0 net/core/sock.c:2219
    [<0000000061d1ca39>] sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2236
    [<00000000b9e7655d>] raw_sendmsg+0xce/0x300 net/can/raw.c:761
    [<00000000fbf369e0>] sock_sendmsg_nosec net/socket.c:646 [inline]
    [<00000000fbf369e0>] sock_sendmsg+0x54/0x70 net/socket.c:665
    [<000000000c1114a7>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2286
    [<0000000092b4a5c3>] __sys_sendmsg+0x80/0xf0 net/socket.c:2324
    [<000000003eeef580>] __do_sys_sendmsg net/socket.c:2333 [inline]
    [<000000003eeef580>] __se_sys_sendmsg net/socket.c:2331 [inline]
    [<000000003eeef580>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2331
    [<000000001747242b>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
    [<000000004ae309be>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff88811f64c700 (size 224):
  comm "syz-executor219", pid 7170, jiffies 4294943685 (age 9.340s)
  hex dump (first 32 bytes):
    b0 94 98 13 81 88 ff ff b0 94 98 13 81 88 ff ff  ................
    00 e0 18 1e 81 88 ff ff 00 94 98 13 81 88 ff ff  ................
  backtrace:
    [<000000007af63cbc>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<000000007af63cbc>] slab_post_alloc_hook mm/slab.h:439 [inline]
    [<000000007af63cbc>] slab_alloc mm/slab.c:3326 [inline]
    [<000000007af63cbc>] kmem_cache_alloc+0x134/0x270 mm/slab.c:3488
    [<000000000c292132>] skb_clone+0x6e/0x140 net/core/skbuff.c:1321
    [<0000000097d3c865>] __skb_tstamp_tx+0x19f/0x220 net/core/skbuff.c:4434
    [<00000000f91ea781>] __dev_queue_xmit+0x920/0xd60 net/core/dev.c:3813
    [<0000000016e30ae1>] dev_queue_xmit+0x18/0x20 net/core/dev.c:3910
    [<000000001d3fdc89>] can_send+0x138/0x2b0 net/can/af_can.c:290
    [<000000005a4285ac>] raw_sendmsg+0x1bb/0x300 net/can/raw.c:780
    [<00000000fbf369e0>] sock_sendmsg_nosec net/socket.c:646 [inline]
    [<00000000fbf369e0>] sock_sendmsg+0x54/0x70 net/socket.c:665
    [<000000000c1114a7>] ___sys_sendmsg+0x393/0x3c0 net/socket.c:2286
    [<0000000092b4a5c3>] __sys_sendmsg+0x80/0xf0 net/socket.c:2324
    [<000000003eeef580>] __do_sys_sendmsg net/socket.c:2333 [inline]
    [<000000003eeef580>] __se_sys_sendmsg net/socket.c:2331 [inline]
    [<000000003eeef580>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2331
    [<000000001747242b>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301
    [<000000004ae309be>] entry_SYSCALL_64_after_hwframe+0x44/0xa9