mmap$IORING_OFF_CQ_RING(&(0x7f0000ffd000/0x1000)=nil, 0x1000, 0x8, 0x110, 0xffffffffffffffff, 0x8000000) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/netfilter\x00') BUG: memory leak unreferenced object 0xffff888009d1ddd0 (size 144): comm "syz-executor.1", pid 16014, jiffies 4297696902 (age 21.106s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 7b 0d 32 64 00 00 00 00 ........{.2d.... 4a 87 62 33 00 00 00 00 7b 0d 32 64 00 00 00 00 J.b3....{.2d.... backtrace: [<00000000fdce7775>] kmem_cache_zalloc include/linux/slab.h:654 [inline] [<00000000fdce7775>] __kernfs_iattrs+0xbc/0x470 fs/kernfs/inode.c:43 [<00000000928f60a0>] kernfs_iattrs fs/kernfs/inode.c:66 [inline] [<00000000928f60a0>] kernfs_xattr_set+0x2b/0x80 fs/kernfs/inode.c:304 [<000000009928bba1>] selinux_kernfs_init_security+0x26d/0x4c0 security/selinux/hooks.c:3522 [<000000005bfa6621>] security_kernfs_init_security+0x4e/0xb0 security/security.c:1456 [<000000002dda7d8e>] __kernfs_new_node+0x531/0x850 fs/kernfs/dir.c:674 [<0000000014808ea5>] kernfs_new_node fs/kernfs/dir.c:697 [inline] [<0000000014808ea5>] kernfs_create_dir_ns+0x9c/0x230 fs/kernfs/dir.c:1033 [<00000000311dbb0d>] kernfs_create_dir include/linux/kernfs.h:561 [inline] [<00000000311dbb0d>] cgroup_create kernel/cgroup/cgroup.c:5328 [inline] [<00000000311dbb0d>] cgroup_mkdir+0x318/0xf50 kernel/cgroup/cgroup.c:5462 [<00000000e37ede66>] kernfs_iop_mkdir+0x14d/0x1e0 fs/kernfs/dir.c:1134 [<00000000973992c2>] vfs_mkdir+0x493/0x700 fs/namei.c:3712 [<00000000a0061502>] do_mkdirat+0x150/0x2b0 fs/namei.c:3734 [<000000008b9ec065>] do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 [<000000000f41548b>] entry_SYSCALL_64_after_hwframe+0x61/0xc6 BUG: leak checking failed