cgroup: Unknown subsys name 'net' cgroup: Unknown subsys name 'rlimit' ================================================================== BUG: KASAN: use-after-free in __lock_acquire+0x42c9/0x5e70 Read of size 8 at addr ffff88800eb62f48 by task syz-executor/279 CPU: 0 PID: 279 Comm: syz-executor Not tainted 6.0.0-rc7-next-20220930 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 print_report+0x172/0x475 kasan_report+0xbb/0x1c0 __lock_acquire+0x42c9/0x5e70 lock_acquire+0x1a2/0x530 _raw_spin_lock_irq+0x32/0x50 kmemleak_scan+0x21d/0x16d0 kmemleak_write+0x570/0x680 full_proxy_write+0x11d/0x190 vfs_write+0x2cb/0xd90 ksys_write+0x127/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe16ef315c3 Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 RSP: 002b:00007fffcc472a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe16ef315c3 RDX: 0000000000000004 RSI: 00007fffcc472a80 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 00007fffcc4729d0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe16efd7e61 R13: 00007fffcc472a80 R14: 0000000000000000 R15: 00007fe16f0196c0 Allocated by task 140: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_slab_alloc+0x58/0x70 kmem_cache_alloc+0x1a9/0x3e0 __create_object+0x3d/0xc10 kmem_cache_alloc_lru+0x2d8/0x740 sock_alloc_inode+0x23/0x1d0 alloc_inode+0x63/0x240 new_inode_pseudo+0x13/0x80 sock_alloc+0x3c/0x260 __sock_create+0xbd/0x760 __sys_socket+0x133/0x250 __x64_sys_socket+0x6f/0xb0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 19: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x2a/0x50 __kasan_slab_free+0x106/0x190 kmem_cache_free+0xf7/0x610 rcu_core+0x7e2/0x2080 __do_softirq+0x1c3/0x8f5 Last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x95/0xb0 call_rcu+0x6a/0xa30 kmem_cache_free+0xbd/0x610 i_callback+0x42/0x70 rcu_core+0x7e2/0x2080 __do_softirq+0x1c3/0x8f5 Second to last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x95/0xb0 call_rcu+0x6a/0xa30 __kmem_cache_free+0x91/0x400 security_cred_free+0xc0/0x120 put_cred_rcu+0x73/0x390 __put_cred+0x12e/0x180 revert_creds+0xaf/0xd0 do_faccessat+0x2e7/0x810 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88800eb62f30 which belongs to the cache kmemleak_object of size 368 The buggy address is located 24 bytes inside of 368-byte region [ffff88800eb62f30, ffff88800eb630a0) The buggy address belongs to the physical page: page:00000000b75582b5 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffffea0000226e80 pfn:0xeb62 head:00000000b75582b5 order:1 compound_mapcount:0 compound_pincount:0 flags: 0x100000000010200(slab|head|node=0|zone=1) raw: 0100000000010200 ffff888007c4f780 dead000000120012 0000000000000000 raw: ffffea0000226e80 dead000000000002 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88800eb62e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88800eb62e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc >ffff88800eb62f00: fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb fb ^ ffff88800eb62f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88800eb63000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================