loop0: detected capacity change from 0 to 32768
==================================================================
BUG: KASAN: slab-out-of-bounds in dtCompare fs/jfs/jfs_dtree.c:3315 [inline]
BUG: KASAN: slab-out-of-bounds in dtSearch+0x131c/0x1f34 fs/jfs/jfs_dtree.c:649
Read of size 1 at addr ffff0000db5ac058 by task syz-executor.0/6008

CPU: 0 PID: 6008 Comm: syz-executor.0 Not tainted 6.9.0-rc6-syzkaller-00234-g7367539ad4b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x178/0x518 mm/kasan/report.c:488
 kasan_report+0xd8/0x138 mm/kasan/report.c:601
 __asan_report_load1_noabort+0x20/0x2c mm/kasan/report_generic.c:378
 dtCompare fs/jfs/jfs_dtree.c:3315 [inline]
 dtSearch+0x131c/0x1f34 fs/jfs/jfs_dtree.c:649
 jfs_lookup+0x164/0x39c fs/jfs/namei.c:1461
 __lookup_slow+0x250/0x374 fs/namei.c:1692
 lookup_slow+0x60/0x84 fs/namei.c:1709
 walk_component fs/namei.c:2004 [inline]
 link_path_walk+0x7dc/0xc78 fs/namei.c:2331
 path_lookupat+0x90/0x3d0 fs/namei.c:2484
 do_o_path+0xa8/0x214 fs/namei.c:3770
 path_openat+0x2210/0x2830 fs/namei.c:3792
 do_filp_open+0x1bc/0x3cc fs/namei.c:3826
 do_sys_openat2+0x124/0x1b8 fs/open.c:1406
 do_sys_open fs/open.c:1421 [inline]
 __do_sys_openat fs/open.c:1437 [inline]
 __se_sys_openat fs/open.c:1432 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1432
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

The buggy address belongs to the object at ffff0000db5ab780
 which belongs to the cache jfs_ip of size 2240
The buggy address is located 24 bytes to the right of
 allocated 2240-byte region [ffff0000db5ab780, ffff0000db5ac040)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11b5a8
head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff0000c57cce01
flags: 0x5ffc00000000840(slab|head|node=0|zone=2|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 05ffc00000000840 ffff0000c2c17000 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800d000d 00000001ffffffff ffff0000c57cce01
head: 05ffc00000000840 ffff0000c2c17000 dead000000000122 0000000000000000
head: 0000000000000000 00000000800d000d 00000001ffffffff ffff0000c57cce01
head: 05ffc00000000003 fffffdffc36d6a01 dead000000000122 00000000ffffffff
head: 0000000800000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000db5abf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000db5abf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff0000db5ac000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                    ^
 ffff0000db5ac080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000db5ac100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
ERROR: (device loop0): dtSearch: stack overrun!

ERROR: (device loop0): remounting filesystem as read-only
btstack dump:
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
jfs_lookup: dtSearch returned -5