BUG: memory leak unreferenced object 0xffff888114d2be60 (size 32): comm "syz-executor031", pid 7021, jiffies 4294951571 (age 22.660s) hex dump (first 32 bytes): 73 69 74 31 00 00 00 00 00 00 00 00 00 00 00 00 sit1............ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000009845f1f1>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000009845f1f1>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000009845f1f1>] slab_alloc mm/slab.c:3320 [inline] [<000000009845f1f1>] __do_kmalloc mm/slab.c:3654 [inline] [<000000009845f1f1>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3671 [<0000000032721482>] kstrdup+0x3a/0x70 mm/util.c:60 [<000000006a28e21d>] kstrdup_const+0x48/0x60 mm/util.c:82 [<00000000fa8fad46>] kvasprintf_const+0x7e/0xe0 lib/kasprintf.c:48 [<00000000274c3d0b>] kobject_set_name_vargs+0x40/0xe0 lib/kobject.c:289 [<00000000591b8673>] dev_set_name+0x63/0x90 drivers/base/core.c:2265 [<00000000600d9e5b>] netdev_register_kobject+0x5a/0x1b0 net/core/net-sysfs.c:1736 [<000000008a06b5b4>] register_netdevice+0x1ce/0x650 net/core/dev.c:9316 [<00000000c196f9e3>] ipip6_tunnel_create+0x7c/0xd0 net/ipv6/sit.c:208 [<00000000aa71e471>] ipip6_tunnel_locate+0x1f8/0x2f0 net/ipv6/sit.c:266 [<0000000011b9c0f5>] ipip6_tunnel_ioctl+0x505/0x9f3 net/ipv6/sit.c:1233 [<00000000897e94c3>] dev_ifsioc+0x324/0x460 net/core/dev_ioctl.c:322 [<00000000f48b041b>] dev_ioctl+0x157/0x470 net/core/dev_ioctl.c:514 [<000000008845d80c>] sock_ioctl+0x394/0x480 net/socket.c:1105 [<00000000885fbb0b>] vfs_ioctl fs/ioctl.c:47 [inline] [<00000000885fbb0b>] file_ioctl fs/ioctl.c:545 [inline] [<00000000885fbb0b>] do_vfs_ioctl+0x551/0x890 fs/ioctl.c:732 [<00000000f75757c1>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:749 BUG: memory leak unreferenced object 0xffff888114d2b5e0 (size 32): comm "syz-executor031", pid 7031, jiffies 4294951626 (age 22.120s) hex dump (first 32 bytes): 73 69 74 31 00 74 3a 5b 33 30 34 38 38 5d 00 00 sit1.t:[30488].. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000009845f1f1>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<000000009845f1f1>] slab_post_alloc_hook mm/slab.h:586 [inline] [<000000009845f1f1>] slab_alloc mm/slab.c:3320 [inline] [<000000009845f1f1>] __do_kmalloc mm/slab.c:3654 [inline] [<000000009845f1f1>] __kmalloc_track_caller+0x165/0x300 mm/slab.c:3671 [<0000000032721482>] kstrdup+0x3a/0x70 mm/util.c:60 [<000000006a28e21d>] kstrdup_const+0x48/0x60 mm/util.c:82 [<00000000fa8fad46>] kvasprintf_const+0x7e/0xe0 lib/kasprintf.c:48 [<00000000274c3d0b>] kobject_set_name_vargs+0x40/0xe0 lib/kobject.c:289 [<00000000591b8673>] dev_set_name+0x63/0x90 drivers/base/core.c:2265 [<00000000600d9e5b>] netdev_register_kobject+0x5a/0x1b0 net/core/net-sysfs.c:1736 [<000000008a06b5b4>] register_netdevice+0x1ce/0x650 net/core/dev.c:9316 [<00000000c196f9e3>] ipip6_tunnel_create+0x7c/0xd0 net/ipv6/sit.c:208 [<00000000aa71e471>] ipip6_tunnel_locate+0x1f8/0x2f0 net/ipv6/sit.c:266 [<0000000011b9c0f5>] ipip6_tunnel_ioctl+0x505/0x9f3 net/ipv6/sit.c:1233 [<00000000897e94c3>] dev_ifsioc+0x324/0x460 net/core/dev_ioctl.c:322 [<00000000f48b041b>] dev_ioctl+0x157/0x470 net/core/dev_ioctl.c:514 [<000000008845d80c>] sock_ioctl+0x394/0x480 net/socket.c:1105 [<00000000885fbb0b>] vfs_ioctl fs/ioctl.c:47 [inline] [<00000000885fbb0b>] file_ioctl fs/ioctl.c:545 [inline] [<00000000885fbb0b>] do_vfs_ioctl+0x551/0x890 fs/ioctl.c:732 [<00000000f75757c1>] ksys_ioctl+0x86/0xb0 fs/ioctl.c:749 executing program executing program executing program executing program executing program executing program