loop1: detected capacity change from 0 to 32768
==================================================================
BUG: KASAN: slab-out-of-bounds in reiserfs_xattr_get+0xd0/0x96c fs/reiserfs/xattr.c:675
Read of size 8 at addr ffff0000dad2eb98 by task syz-executor.1/4759

CPU: 0 PID: 4759 Comm: syz-executor.1 Not tainted 6.5.0-rc4-syzkaller-g86d7896480b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0x174/0x514 mm/kasan/report.c:475
 kasan_report+0xd8/0x138 mm/kasan/report.c:588
 __asan_report_load8_noabort+0x20/0x2c mm/kasan/report_generic.c:381
 reiserfs_xattr_get+0xd0/0x96c fs/reiserfs/xattr.c:675
 reiserfs_get_acl+0x94/0x624 fs/reiserfs/xattr_acl.c:215
 __get_acl+0x26c/0x474 fs/posix_acl.c:160
 get_inode_acl+0x34/0x44 fs/posix_acl.c:185
 check_acl+0x40/0x184 fs/namei.c:309
 acl_permission_check fs/namei.c:354 [inline]
 generic_permission+0x2f8/0x498 fs/namei.c:407
 reiserfs_permission+0x74/0xa8 fs/reiserfs/xattr.c:957
 do_inode_permission fs/namei.c:461 [inline]
 inode_permission+0x1d0/0x3b4 fs/namei.c:528
 may_open+0x290/0x3bc fs/namei.c:3264
 do_open fs/namei.c:3634 [inline]
 path_openat+0x1e04/0x27f8 fs/namei.c:3793
 do_filp_open+0x1bc/0x3cc fs/namei.c:3820
 do_sys_openat2+0x124/0x1b8 fs/open.c:1407
 do_sys_open fs/open.c:1422 [inline]
 __do_sys_openat fs/open.c:1438 [inline]
 __se_sys_openat fs/open.c:1433 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1433
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

Allocated by task 4309:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4c/0x7c mm/kasan/common.c:52
 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:511
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:196 [inline]
 kmalloc_trace+0x70/0x88 mm/slab_common.c:1081
 kmalloc include/linux/slab.h:582 [inline]
 kzalloc include/linux/slab.h:703 [inline]
 smk_fetch+0xa8/0x150 security/smack/smack_lsm.c:291
 smack_d_instantiate+0x6cc/0x938 security/smack/smack_lsm.c:3541
 security_d_instantiate+0x98/0xf0 security/security.c:3760
 d_instantiate+0x5c/0xa0 fs/dcache.c:2034
 shmem_mknod+0x188/0x1cc mm/shmem.c:3092
 shmem_create+0x40/0x54 mm/shmem.c:3141
 lookup_open fs/namei.c:3492 [inline]
 open_last_lookups fs/namei.c:3560 [inline]
 path_openat+0xf80/0x27f8 fs/namei.c:3790
 do_filp_open+0x1bc/0x3cc fs/namei.c:3820
 do_sys_openat2+0x124/0x1b8 fs/open.c:1407
 do_sys_open fs/open.c:1422 [inline]
 __do_sys_openat fs/open.c:1438 [inline]
 __se_sys_openat fs/open.c:1433 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1433
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:139
 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:188
 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

The buggy address belongs to the object at ffff0000dad2ea00
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 152 bytes to the right of
 allocated 256-byte region [ffff0000dad2ea00, ffff0000dad2eb00)

The buggy address belongs to the physical page:
page:0000000059eac13f refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11ad2e
head:0000000059eac13f order:1 entire_mapcount:0 nr_pages_mapped:0 pincount:0
anon flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 05ffc00000010200 ffff0000c0001b40 0000000000000000 dead000000000001
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000dad2ea80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000dad2eb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff0000dad2eb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                            ^
 ffff0000dad2ec00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000dad2ec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================