loop1: detected capacity change from 0 to 97815
==================================================================
BUG: KASAN: slab-out-of-bounds in reiserfs_xattr_get+0xe3/0x580 fs/reiserfs/xattr.c:674
Read of size 8 at addr ffff8880572ab398 by task syz-executor.1/15742

CPU: 0 PID: 15742 Comm: syz-executor.1 Not tainted 6.1.0-rc2-syzkaller-00105-gb229b6ca5abb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description+0x74/0x340 mm/kasan/report.c:284
 print_report+0x107/0x220 mm/kasan/report.c:395
 kasan_report+0x139/0x170 mm/kasan/report.c:495
 reiserfs_xattr_get+0xe3/0x580 fs/reiserfs/xattr.c:674
 reiserfs_get_acl+0x7a/0x650 fs/reiserfs/xattr_acl.c:214
 get_acl+0x157/0x260 fs/posix_acl.c:153
 check_acl+0x35/0x150 fs/namei.c:306
 acl_permission_check fs/namei.c:351 [inline]
 generic_permission+0x388/0x4e0 fs/namei.c:404
 do_inode_permission fs/namei.c:458 [inline]
 inode_permission+0x22c/0x450 fs/namei.c:525
 may_open+0x2a4/0x400 fs/namei.c:3185
 do_open fs/namei.c:3555 [inline]
 path_openat+0x24b4/0x2e00 fs/namei.c:3713
 do_filp_open+0x275/0x500 fs/namei.c:3740
 do_sys_openat2+0x13b/0x500 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3c4623d654
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:00007f3c46f67f10 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f3c4623d654
RDX: 0000000000010000 RSI: 0000000020000100 RDI: 00000000ffffff9c
RBP: 0000000020000100 R08: 0000000000000000 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000010000
R13: 0000000020000100 R14: 00007f3c46f67fe0 R15: 0000000020006400
 </TASK>

Allocated by task 12796:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4c/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:371 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:380
 kmalloc include/linux/slab.h:576 [inline]
 kzalloc include/linux/slab.h:712 [inline]
 smk_fetch+0x91/0x140 security/smack/smack_lsm.c:291
 smack_d_instantiate+0x741/0xa10 security/smack/smack_lsm.c:3460
 security_d_instantiate+0xa5/0x100 security/security.c:2063
 d_instantiate+0x51/0x90 fs/dcache.c:2034
 shmem_symlink+0x58a/0x740 mm/shmem.c:3146
 vfs_symlink+0x246/0x3d0 fs/namei.c:4400
 do_symlinkat+0x209/0x610 fs/namei.c:4429
 __do_sys_symlink fs/namei.c:4451 [inline]
 __se_sys_symlink fs/namei.c:4449 [inline]
 __x64_sys_symlink+0x7a/0x90 fs/namei.c:4449
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The buggy address belongs to the object at ffff8880572ab200
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 152 bytes to the right of
 256-byte region [ffff8880572ab200, ffff8880572ab300)

The buggy address belongs to the physical page:
page:ffffea00015caa80 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x572aa
head:ffffea00015caa80 order:1 compound_mapcount:0 compound_pincount:0
flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000010200 ffffea000077ca80 dead000000000003 ffff888012041b40
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 30610, tgid 30609 (syz-executor.0), ts 715343354721, free_ts 714970629214
 prep_new_page mm/page_alloc.c:2538 [inline]
 get_page_from_freelist+0x72b/0x7a0 mm/page_alloc.c:4287
 __alloc_pages+0x259/0x560 mm/page_alloc.c:5554
 alloc_slab_page+0x70/0xf0 mm/slub.c:1794
 allocate_slab+0x5e/0x4b0 mm/slub.c:1939
 new_slab mm/slub.c:1992 [inline]
 ___slab_alloc+0x7f4/0xeb0 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x252/0x310 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:954 [inline]
 __kmalloc+0x9e/0x1a0 mm/slab_common.c:968
 kmalloc_array include/linux/slab.h:628 [inline]
 kcalloc include/linux/slab.h:659 [inline]
 iter_file_splice_write+0x272/0xff0 fs/splice.c:625
 do_splice_from fs/splice.c:764 [inline]
 direct_splice_actor+0xe6/0x1c0 fs/splice.c:931
 splice_direct_to_actor+0x4e4/0xc00 fs/splice.c:886
 do_splice_direct+0x2a0/0x3f0 fs/splice.c:974
 do_sendfile+0x641/0xfd0 fs/read_write.c:1255
 __do_sys_sendfile64 fs/read_write.c:1323 [inline]
 __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1458 [inline]
 free_pcp_prepare+0x80c/0x8f0 mm/page_alloc.c:1508
 free_unref_page_prepare mm/page_alloc.c:3386 [inline]
 free_unref_page+0x7d/0x630 mm/page_alloc.c:3482
 free_slab mm/slub.c:2031 [inline]
 discard_slab mm/slub.c:2037 [inline]
 __unfreeze_partials+0x1ab/0x200 mm/slub.c:2586
 put_cpu_partial+0x116/0x180 mm/slub.c:2662
 qlist_free_all+0x2b/0x70 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x169/0x180 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:302
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slab.h:737 [inline]
 slab_alloc_node mm/slub.c:3398 [inline]
 __kmem_cache_alloc_node+0x1d7/0x310 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:954 [inline]
 __kmalloc+0x9e/0x1a0 mm/slab_common.c:968
 kmalloc_array include/linux/slab.h:628 [inline]
 kcalloc include/linux/slab.h:659 [inline]
 iter_file_splice_write+0x272/0xff0 fs/splice.c:625
 do_splice_from fs/splice.c:764 [inline]
 direct_splice_actor+0xe6/0x1c0 fs/splice.c:931
 splice_direct_to_actor+0x4e4/0xc00 fs/splice.c:886
 do_splice_direct+0x2a0/0x3f0 fs/splice.c:974
 do_sendfile+0x641/0xfd0 fs/read_write.c:1255
 __do_sys_sendfile64 fs/read_write.c:1323 [inline]
 __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80

Memory state around the buggy address:
 ffff8880572ab280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880572ab300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880572ab380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff8880572ab400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880572ab480: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
==================================================================