2022/08/28 14:51:37 executed programs: 13
BUG: memory leak
unreferenced object 0xffff88810b729c00 (size 240):
  comm "syz-executor.0", pid 3698, jiffies 4295051960 (age 34.220s)
  hex dump (first 32 bytes):
    a0 5c 8d 01 81 88 ff ff a0 5c 8d 01 81 88 ff ff  .\.......\......
    00 40 9a 0a 81 88 ff ff 00 00 00 00 00 00 00 00  .@..............
  backtrace:
    [<ffffffff8387793b>] napi_skb_cache_get+0x6b/0x90 net/core/skbuff.c:179
    [<ffffffff83877a46>] __alloc_skb+0x96/0x270 net/core/skbuff.c:416
    [<ffffffff83877c8c>] __napi_alloc_skb+0x6c/0x170 net/core/skbuff.c:571
    [<ffffffff838facfc>] napi_alloc_skb include/linux/skbuff.h:3186 [inline]
    [<ffffffff838facfc>] napi_get_frags net/core/gro.c:678 [inline]
    [<ffffffff838facfc>] napi_get_frags+0x3c/0x80 net/core/gro.c:673
    [<ffffffff838a7c45>] napi_get_frags_check net/core/dev.c:6372 [inline]
    [<ffffffff838a7c45>] netif_napi_add_weight+0x1b5/0x3c0 net/core/dev.c:6405
    [<ffffffff82a25c72>] netif_napi_add_tx_weight include/linux/netdevice.h:2573 [inline]
    [<ffffffff82a25c72>] netif_napi_add_tx include/linux/netdevice.h:2592 [inline]
    [<ffffffff82a25c72>] tun_napi_init drivers/net/tun.c:271 [inline]
    [<ffffffff82a25c72>] tun_attach.isra.0+0x6f2/0x8c0 drivers/net/tun.c:823
    [<ffffffff82a27f1b>] tun_net_init+0x23b/0x2c0 drivers/net/tun.c:1004
    [<ffffffff838b2d64>] register_netdevice+0x1c4/0x960 net/core/dev.c:10000
    [<ffffffff82a27554>] tun_set_iff drivers/net/tun.c:2820 [inline]
    [<ffffffff82a27554>] __tun_chr_ioctl+0x1714/0x1e40 drivers/net/tun.c:3079
    [<ffffffff8160b74c>] vfs_ioctl fs/ioctl.c:51 [inline]
    [<ffffffff8160b74c>] __do_sys_ioctl fs/ioctl.c:870 [inline]
    [<ffffffff8160b74c>] __se_sys_ioctl fs/ioctl.c:856 [inline]
    [<ffffffff8160b74c>] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:856
    [<ffffffff845e58e5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845e58e5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff8881142bec00 (size 1024):
  comm "syz-executor.0", pid 3718, jiffies 4295054637 (age 7.450s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff83877a8d>] kmalloc_reserve net/core/skbuff.c:358 [inline]
    [<ffffffff83877a8d>] __alloc_skb+0xdd/0x270 net/core/skbuff.c:430
    [<ffffffff83877c8c>] __napi_alloc_skb+0x6c/0x170 net/core/skbuff.c:571
    [<ffffffff838facfc>] napi_alloc_skb include/linux/skbuff.h:3186 [inline]
    [<ffffffff838facfc>] napi_get_frags net/core/gro.c:678 [inline]
    [<ffffffff838facfc>] napi_get_frags+0x3c/0x80 net/core/gro.c:673
    [<ffffffff82a291b3>] tun_napi_alloc_frags drivers/net/tun.c:1466 [inline]
    [<ffffffff82a291b3>] tun_get_user+0xb53/0x1df0 drivers/net/tun.c:1826
    [<ffffffff82a2b14d>] tun_chr_write_iter+0x6d/0x110 drivers/net/tun.c:2025
    [<ffffffff815e443d>] call_write_iter include/linux/fs.h:2187 [inline]
    [<ffffffff815e443d>] new_sync_write fs/read_write.c:491 [inline]
    [<ffffffff815e443d>] vfs_write+0x42d/0x540 fs/read_write.c:578
    [<ffffffff815e478d>] ksys_write+0x9d/0x160 fs/read_write.c:631
    [<ffffffff845e58e5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845e58e5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd