EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback.
==================================================================
BUG: KASAN: out-of-bounds in ext4_xattr_set_entry+0x909/0x1fa0 fs/ext4/xattr.c:1732
Read of size 18446744073709551572 at addr ffff88811156a850 by task syz-executor288/296

CPU: 0 PID: 296 Comm: syz-executor288 Not tainted 6.1.112-syzkaller-00109-gfadb08b36671 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x158/0x4e0 mm/kasan/report.c:427
 kasan_report+0x13c/0x170 mm/kasan/report.c:531
 kasan_check_range+0x294/0x2a0 mm/kasan/generic.c:189
 memmove+0x2d/0x70 mm/kasan/shadow.c:54
 ext4_xattr_set_entry+0x909/0x1fa0 fs/ext4/xattr.c:1732
 ext4_xattr_block_set+0x99c/0x37f0 fs/ext4/xattr.c:1979
 ext4_xattr_move_to_block fs/ext4/xattr.c:2615 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2690 [inline]
 ext4_expand_extra_isize_ea+0x10eb/0x1c40 fs/ext4/xattr.c:2782
 __ext4_expand_extra_isize+0x31a/0x420 fs/ext4/inode.c:5935
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5978 [inline]
 __ext4_mark_inode_dirty+0x4bb/0x7d0 fs/ext4/inode.c:6056
 __ext4_unlink+0x6ed/0xba0 fs/ext4/namei.c:3339
 ext4_unlink+0x142/0x3f0 fs/ext4/namei.c:3368
 vfs_unlink+0x38c/0x630 fs/namei.c:4323
 do_unlinkat+0x483/0x920 fs/namei.c:4391
 __do_sys_unlink fs/namei.c:4439 [inline]
 __se_sys_unlink fs/namei.c:4437 [inline]
 __x64_sys_unlink+0x49/0x50 fs/namei.c:4437
 x64_sys_call+0x289/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:88
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe2a2dc59f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdac7386b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fe2a2dc59f9
RDX: 00007fe2a2dc59f9 RSI: 00007fe2a2dc59f9 RDI: 0000000020000180
RBP: 0032656c69662f2e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffdac738898 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Allocated by task 296:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x9c/0xb0 mm/kasan/common.c:388
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 __do_kmalloc_node mm/slab_common.c:938 [inline]
 __kmalloc_node_track_caller+0xb3/0x1e0 mm/slab_common.c:958
 kmemdup+0x29/0x60 mm/util.c:134
 _Z7kmemdupPKvU17pass_object_size0mj include/linux/fortify-string.h:585 [inline]
 ext4_xattr_block_set+0x80f/0x37f0 fs/ext4/xattr.c:1927
 ext4_xattr_move_to_block fs/ext4/xattr.c:2615 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2690 [inline]
 ext4_expand_extra_isize_ea+0x10eb/0x1c40 fs/ext4/xattr.c:2782
 __ext4_expand_extra_isize+0x31a/0x420 fs/ext4/inode.c:5935
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5978 [inline]
 __ext4_mark_inode_dirty+0x4bb/0x7d0 fs/ext4/inode.c:6056
 __ext4_unlink+0x6ed/0xba0 fs/ext4/namei.c:3339
 ext4_unlink+0x142/0x3f0 fs/ext4/namei.c:3368
 vfs_unlink+0x38c/0x630 fs/namei.c:4323
 do_unlinkat+0x483/0x920 fs/namei.c:4391
 __do_sys_unlink fs/namei.c:4439 [inline]
 __se_sys_unlink fs/namei.c:4437 [inline]
 __x64_sys_unlink+0x49/0x50 fs/namei.c:4437
 x64_sys_call+0x289/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:88
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff88811156a800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 80 bytes inside of
 1024-byte region [ffff88811156a800, ffff88811156ac00)

The buggy address belongs to the physical page:
page:ffffea0004455a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111568
head:ffffea0004455a00 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100043080
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 290, tgid 290 (sshd), ts 22795170436, free_ts 22795147855
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x213/0x220 mm/page_alloc.c:2590
 prep_new_page+0x1b/0x110 mm/page_alloc.c:2597
 get_page_from_freelist+0x2980/0x2a10 mm/page_alloc.c:4439
 __alloc_pages+0x234/0x610 mm/page_alloc.c:5728
 alloc_slab_page+0x6c/0xf0
 allocate_slab mm/slub.c:1962 [inline]
 new_slab+0x90/0x3e0 mm/slub.c:2015
 ___slab_alloc+0x6f9/0xb80 mm/slub.c:3203
 __slab_alloc+0x5d/0xa0 mm/slub.c:3302
 slab_alloc_node mm/slub.c:3387 [inline]
 __kmem_cache_alloc_node+0x1af/0x250 mm/slub.c:3460
 __do_kmalloc_node mm/slab_common.c:937 [inline]
 __kmalloc_node_track_caller+0xa2/0x1e0 mm/slab_common.c:958
 kmalloc_reserve net/core/skbuff.c:446 [inline]
 __alloc_skb+0x125/0x2d0 net/core/skbuff.c:515
 alloc_skb_fclone include/linux/skbuff.h:1340 [inline]
 tcp_stream_alloc_skb+0x46/0x340 net/ipv4/tcp.c:867
 tcp_sendmsg_locked+0xda6/0x4000 net/ipv4/tcp.c:1330
 tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1488
 inet_sendmsg+0xa1/0xc0 net/ipv4/af_inet.c:837
 sock_sendmsg_nosec net/socket.c:716 [inline]
 __sock_sendmsg net/socket.c:728 [inline]
 sock_write_iter+0x394/0x4e0 net/socket.c:1133
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1498 [inline]
 free_pcp_prepare mm/page_alloc.c:1572 [inline]
 free_unref_page_prepare+0x83d/0x850 mm/page_alloc.c:3511
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3607
 free_the_page mm/page_alloc.c:798 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5817
 __free_slab+0xce/0x1a0 mm/slub.c:2039
 free_slab mm/slub.c:2054 [inline]
 discard_slab mm/slub.c:2060 [inline]
 __unfreeze_partials+0x165/0x1a0 mm/slub.c:2609
 put_cpu_partial+0xa9/0x100 mm/slub.c:2685
 __slab_free+0x1c8/0x280 mm/slub.c:3561
 do_slab_free mm/slub.c:3638 [inline]
 ___cache_free+0xc6/0xd0 mm/slub.c:3691
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0xc5/0x140 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x15a/0x180 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x24/0x80 mm/kasan/common.c:310
 kasan_slab_alloc include/linux/kasan.h:202 [inline]
 slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768
 slab_alloc_node mm/slub.c:3421 [inline]
 kmem_cache_alloc_node+0x18a/0x2d0 mm/slub.c:3466
 __alloc_skb+0xcc/0x2d0 net/core/skbuff.c:505
 alloc_skb_fclone include/linux/skbuff.h:1340 [inline]
 tcp_stream_alloc_skb+0x46/0x340 net/ipv4/tcp.c:867
 tcp_sendmsg_locked+0xda6/0x4000 net/ipv4/tcp.c:1330

Memory state around the buggy address:
 ffff88811156a700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88811156a780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88811156a800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                                 ^
 ffff88811156a880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88811156a900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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