EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
==================================================================
BUG: KASAN: out-of-bounds in ext4_xattr_set_entry+0x8e9/0x1e20
Read of size 18446744073709551588 at addr ffff888174665840 by task syz.0.2880/19332

CPU: 0 UID: 0 PID: 19332 Comm: syz.0.2880 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 print_report+0xba/0x230
 kasan_report+0x117/0x150
 kasan_check_range+0x264/0x2c0
 __asan_memmove+0x29/0x70
 ext4_xattr_set_entry+0x8e9/0x1e20
 ext4_xattr_block_set+0x878/0x2ad0
 ext4_xattr_set_handle+0xe34/0x14c0
 ext4_xattr_set+0x255/0x340
 __vfs_setxattr+0x43c/0x480
 __vfs_setxattr_noperm+0x12d/0x660
 vfs_setxattr+0x16a/0x2e0
 filename_setxattr+0x281/0x630
 path_setxattrat+0x3f3/0x430
 __x64_sys_setxattr+0xbc/0xe0
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0171d9acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0172b92028 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f0172015fa0 RCX: 00007f0171d9acb9
RDX: 00002000000013c0 RSI: 0000200000000140 RDI: 0000200000000100
RBP: 00007f0171e08bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000700 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0172016038 R14: 00007f0172015fa0 R15: 00007ffc3585b3d8
 </TASK>

Allocated by task 19332:
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_node_track_caller_noprof+0x558/0x7f0
 kmemdup_noprof+0x2b/0x70
 ext4_xattr_block_set+0x787/0x2ad0
 ext4_xattr_set_handle+0xe34/0x14c0
 ext4_xattr_set+0x255/0x340
 __vfs_setxattr+0x43c/0x480
 __vfs_setxattr_noperm+0x12d/0x660
 vfs_setxattr+0x16a/0x2e0
 filename_setxattr+0x281/0x630
 path_setxattrat+0x3f3/0x430
 __x64_sys_setxattr+0xbc/0xe0
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888174665800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 64 bytes inside of
 1024-byte region [ffff888174665800, ffff888174665c00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x174660
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x57ff00000000040(head|node=1|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 057ff00000000040 ffff888100041dc0 ffffea0004677e00 dead000000000002
raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
head: 057ff00000000040 ffff888100041dc0 ffffea0004677e00 dead000000000002
head: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
head: 057ff00000000003 ffffea0005d19801 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5241, tgid 5241 (init), ts 28440725438, free_ts 24680526306
 post_alloc_hook+0x231/0x280
 get_page_from_freelist+0x24dc/0x2580
 __alloc_frozen_pages_noprof+0x18d/0x380
 alloc_pages_mpol+0x232/0x4a0
 allocate_slab+0x86/0x3a0
 ___slab_alloc+0xd82/0x1760
 __slab_alloc+0x65/0x100
 __kmalloc_noprof+0x46c/0x7e0
 tomoyo_init_log+0x1aae/0x1fb0
 tomoyo_supervisor+0x353/0x1570
 tomoyo_env_perm+0x151/0x1f0
 tomoyo_find_next_domain+0x15cb/0x1aa0
 tomoyo_bprm_check_security+0x11b/0x180
 security_bprm_check+0x85/0x240
 bprm_execve+0x896/0x1410
 do_execveat_common+0x50f/0x690
page last free pid 9 tgid 9 stack trace:
 __free_frozen_pages+0xbb9/0xd10
 vfree+0x25a/0x400
 delayed_vfree_work+0x55/0x80
 process_scheduled_works+0xaec/0x17a0
 worker_thread+0x89f/0xd90
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 ret_from_fork_asm+0x1a/0x30

Memory state around the buggy address:
 ffff888174665700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888174665780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888174665800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                           ^
 ffff888174665880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888174665900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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