loop1: detected capacity change from 0 to 1024
==================================================================
BUG: KASAN: slab-out-of-bounds in reiserfs_xattr_get+0xe6/0x570 fs/reiserfs/xattr.c:674
Read of size 8 at addr ffff888027ac6d98 by task syz-executor.1/468

CPU: 1 PID: 468 Comm: syz-executor.1 Not tainted 6.2.0-syzkaller-12913-gae3419fbac84 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:319 [inline]
 print_report+0x163/0x540 mm/kasan/report.c:430
 kasan_report+0x143/0x170 mm/kasan/report.c:536
 reiserfs_xattr_get+0xe6/0x570 fs/reiserfs/xattr.c:674
 reiserfs_get_acl+0x7e/0x650 fs/reiserfs/xattr_acl.c:215
 __get_acl+0x288/0x470 fs/posix_acl.c:160
 check_acl+0x3a/0x150 fs/namei.c:307
 acl_permission_check fs/namei.c:352 [inline]
 generic_permission+0x362/0x550 fs/namei.c:405
 do_inode_permission fs/namei.c:459 [inline]
 inode_permission+0x233/0x460 fs/namei.c:526
 may_open+0x2d6/0x440 fs/namei.c:3188
 do_open fs/namei.c:3558 [inline]
 path_openat+0x2652/0x3170 fs/namei.c:3715
 do_filp_open+0x234/0x490 fs/namei.c:3742
 do_sys_openat2+0x13f/0x500 fs/open.c:1348
 do_sys_open fs/open.c:1364 [inline]
 __do_sys_openat fs/open.c:1380 [inline]
 __se_sys_openat fs/open.c:1375 [inline]
 __x64_sys_openat+0x247/0x290 fs/open.c:1375
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2c6ee3e284
Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44
RSP: 002b:00007f2c6fb8af10 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000000062d RCX: 00007f2c6ee3e284
RDX: 0000000000010000 RSI: 0000000020000040 RDI: 00000000ffffff9c
RBP: 0000000020000040 R08: 0000000000000000 R09: 0000000001010854
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000010000
R13: 0000000020000040 R14: 00007f2c6fb8afe0 R15: 00000000200003c0
 </TASK>

Allocated by task 468:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4f/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:383
 kmalloc include/linux/slab.h:580 [inline]
 kzalloc include/linux/slab.h:720 [inline]
 hfsplus_fill_super+0x138/0x1c90 fs/hfsplus/super.c:387
 mount_bdev+0x271/0x3a0 fs/super.c:1371
 legacy_get_tree+0xef/0x190 fs/fs_context.c:610
 vfs_get_tree+0x8c/0x270 fs/super.c:1501
 do_new_mount+0x28f/0xae0 fs/namespace.c:3042
 do_mount fs/namespace.c:3385 [inline]
 __do_sys_mount fs/namespace.c:3594 [inline]
 __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3571
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Last potentially related work creation:
 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:491
 __call_rcu_common kernel/rcu/tree.c:2622 [inline]
 call_rcu+0x167/0xac0 kernel/rcu/tree.c:2736
 process_one_work+0x915/0x13a0 kernel/workqueue.c:2390
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537
 kthread+0x270/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

Second to last potentially related work creation:
 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:491
 __call_rcu_common kernel/rcu/tree.c:2622 [inline]
 call_rcu+0x167/0xac0 kernel/rcu/tree.c:2736
 process_one_work+0x915/0x13a0 kernel/workqueue.c:2390
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537
 kthread+0x270/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

The buggy address belongs to the object at ffff888027ac6800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 704 bytes to the right of
 allocated 728-byte region [ffff888027ac6800, ffff888027ac6ad8)

The buggy address belongs to the physical page:
page:ffffea00009eb000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x27ac0
head:ffffea00009eb000 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffff888012441dc0 0000000000000000 dead000000000001
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 0xd2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 14658616006, free_ts 0
 prep_new_page mm/page_alloc.c:2552 [inline]
 get_page_from_freelist+0x37e0/0x3970 mm/page_alloc.c:4325
 __alloc_pages+0x291/0x7f0 mm/page_alloc.c:5591
 alloc_page_interleave+0x22/0x1d0 mm/mempolicy.c:2116
 alloc_slab_page+0x6a/0x160 mm/slub.c:1851
 allocate_slab mm/slub.c:1998 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2051
 ___slab_alloc+0xa85/0x10a0 mm/slub.c:3193
 __slab_alloc mm/slub.c:3292 [inline]
 __slab_alloc_node mm/slub.c:3345 [inline]
 slab_alloc_node mm/slub.c:3442 [inline]
 __kmem_cache_alloc_node+0x1b8/0x2a0 mm/slub.c:3491
 __do_kmalloc_node mm/slab_common.c:966 [inline]
 __kmalloc_node_track_caller+0xa0/0x190 mm/slab_common.c:987
 kmalloc_reserve+0x120/0x220 net/core/skbuff.c:539
 pskb_expand_head+0x202/0x1340 net/core/skbuff.c:1995
 netlink_trim+0x183/0x220 net/netlink/af_netlink.c:1321
 netlink_broadcast+0x5e/0x1160 net/netlink/af_netlink.c:1517
 nlmsg_multicast include/net/netlink.h:1083 [inline]
 genlmsg_mcast net/netlink/genetlink.c:1779 [inline]
 genlmsg_multicast_allns+0x239/0x320 net/netlink/genetlink.c:1798
 genl_ctrl_event+0x705/0xc40 net/netlink/genetlink.c:1364
 genl_register_family+0x12e0/0x1730 net/netlink/genetlink.c:675
 ip_vs_genl_register net/netfilter/ipvs/ip_vs_ctl.c:4269 [inline]
 ip_vs_register_nl_ioctl+0x32/0x90 net/netfilter/ipvs/ip_vs_ctl.c:4516
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888027ac6c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888027ac6d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888027ac6d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff888027ac6e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888027ac6e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================