EXT4-fs (loop3): 1 truncate cleaned up
EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
==================================================================
BUG: KASAN: out-of-bounds in ext4_xattr_set_entry+0x94c/0x1694 fs/ext4/xattr.c:1759
Read of size 18446744073709551540 at addr ffff0000d41de070 by task syz.3.80/6904

CPU: 0 UID: 0 PID: 6904 Comm: syz.3.80 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x198/0x538 mm/kasan/report.c:488
 kasan_report+0xd8/0x138 mm/kasan/report.c:601
 kasan_check_range+0x268/0x2a8 mm/kasan/generic.c:189
 __asan_memmove+0x3c/0x84 mm/kasan/shadow.c:94
 ext4_xattr_set_entry+0x94c/0x1694 fs/ext4/xattr.c:1759
 ext4_xattr_block_set+0xa6c/0x2e08 fs/ext4/xattr.c:2028
 ext4_xattr_set_handle+0xeac/0x12d0 fs/ext4/xattr.c:2449
 ext4_xattr_set+0x224/0x344 fs/ext4/xattr.c:2560
 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38
 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200
 __vfs_setxattr_noperm+0x110/0x578 fs/xattr.c:234
 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295
 vfs_setxattr+0x1a8/0x344 fs/xattr.c:321
 do_setxattr fs/xattr.c:629 [inline]
 path_setxattr+0x30c/0x428 fs/xattr.c:658
 __do_sys_lsetxattr fs/xattr.c:683 [inline]
 __se_sys_lsetxattr fs/xattr.c:679 [inline]
 __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:679
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Allocated by task 6904:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:68
 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
 __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:394
 kasan_kmalloc include/linux/kasan.h:257 [inline]
 __do_kmalloc_node mm/slub.c:4264 [inline]
 __kmalloc_node_track_caller_noprof+0x2d0/0x4d8 mm/slub.c:4283
 kmemdup_noprof+0x44/0x80 mm/util.c:133
 ext4_xattr_block_set+0x93c/0x2e08 fs/ext4/xattr.c:1976
 ext4_xattr_set_handle+0xeac/0x12d0 fs/ext4/xattr.c:2449
 ext4_xattr_set+0x224/0x344 fs/ext4/xattr.c:2560
 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38
 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200
 __vfs_setxattr_noperm+0x110/0x578 fs/xattr.c:234
 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295
 vfs_setxattr+0x1a8/0x344 fs/xattr.c:321
 do_setxattr fs/xattr.c:629 [inline]
 path_setxattr+0x30c/0x428 fs/xattr.c:658
 __do_sys_lsetxattr fs/xattr.c:683 [inline]
 __se_sys_lsetxattr fs/xattr.c:679 [inline]
 __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:679
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

The buggy address belongs to the object at ffff0000d41de000
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 112 bytes inside of
 1024-byte region [ffff0000d41de000, ffff0000d41de400)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1141d8
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
ksm flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 05ffc00000000040 ffff0000c0001dc0 fffffdffc34da200 0000000000000003
raw: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000
head: 05ffc00000000040 ffff0000c0001dc0 fffffdffc34da200 0000000000000003
head: 0000000000000000 0000000080100010 00000001f5000000 0000000000000000
head: 05ffc00000000003 fffffdffc3507601 ffffffffffffffff 0000000000000000
head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d41ddf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000d41ddf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff0000d41de000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                             ^
 ffff0000d41de080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000d41de100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================