BUG: memory leak unreferenced object 0xffff8881191973e0 (size 32): comm "syz-executor.7", pid 7224, jiffies 4295045665 (age 11.200s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000d0c85ee0>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000d0c85ee0>] slab_post_alloc_hook mm/slab.h:586 [inline] [<00000000d0c85ee0>] slab_alloc mm/slab.c:3319 [inline] [<00000000d0c85ee0>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3548 [<000000002b9f3c7a>] kmalloc include/linux/slab.h:556 [inline] [<000000002b9f3c7a>] kzalloc include/linux/slab.h:690 [inline] [<000000002b9f3c7a>] net_alloc net/core/net_namespace.c:416 [inline] [<000000002b9f3c7a>] copy_net_ns+0xb2/0x220 net/core/net_namespace.c:463 [<0000000064e4438f>] create_new_namespaces+0x141/0x2a0 kernel/nsproxy.c:103 [<000000007f3950bf>] unshare_nsproxy_namespaces+0x7f/0x100 kernel/nsproxy.c:202 [<00000000f0dc0e8d>] ksys_unshare+0x237/0x490 kernel/fork.c:2827 [<00000000ca0febc7>] __do_sys_unshare kernel/fork.c:2895 [inline] [<00000000ca0febc7>] __se_sys_unshare kernel/fork.c:2893 [inline] [<00000000ca0febc7>] __x64_sys_unshare+0x16/0x20 kernel/fork.c:2893 [<00000000486033af>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290 [<00000000f5e43a90>] entry_SYSCALL_64_after_hwframe+0x44/0xa9