ERROR: (device loop3): dbUpdatePMap: blocks are outside the map
UFO tlock:0x00000000526b3703
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:628:10
index 237 is out of range for type 'struct dtslot[128]'
CPU: 1 PID: 6880 Comm: syz.3.483 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0x108/0x15c lib/ubsan.c:282
 dtSearch+0x1718/0x1f34 fs/jfs/jfs_dtree.c:628
 jfs_lookup+0x164/0x39c fs/jfs/namei.c:1459
 __lookup_slow+0x250/0x388 fs/namei.c:1663
 lookup_slow+0x60/0x84 fs/namei.c:1680
 walk_component+0x394/0x4cc fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x13c/0x3d0 fs/namei.c:2455
 filename_lookup+0x1c4/0x4c8 fs/namei.c:2484
 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 path_listxattr fs/xattr.c:804 [inline]
 __do_sys_listxattr fs/xattr.c:819 [inline]
 __se_sys_listxattr fs/xattr.c:816 [inline]
 __arm64_sys_listxattr+0xf4/0x21c fs/xattr.c:816
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
================================================================================
==================================================================
BUG: KASAN: slab-out-of-bounds in dtSearch+0x15c0/0x1f34 fs/jfs/jfs_dtree.c:783
Read of size 1 at addr ffff0000e5308da0 by task syz.3.483/6880

CPU: 0 PID: 6880 Comm: syz.3.483 Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x174/0x1e4 mm/kasan/report.c:451
 __asan_report_load1_noabort+0x44/0x50 mm/kasan/report_generic.c:306
 dtSearch+0x15c0/0x1f34 fs/jfs/jfs_dtree.c:783
 jfs_lookup+0x164/0x39c fs/jfs/namei.c:1459
 __lookup_slow+0x250/0x388 fs/namei.c:1663
 lookup_slow+0x60/0x84 fs/namei.c:1680
 walk_component+0x394/0x4cc fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x13c/0x3d0 fs/namei.c:2455
 filename_lookup+0x1c4/0x4c8 fs/namei.c:2484
 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 path_listxattr fs/xattr.c:804 [inline]
 __do_sys_listxattr fs/xattr.c:819 [inline]
 __se_sys_listxattr fs/xattr.c:816 [inline]
 __arm64_sys_listxattr+0xf4/0x21c fs/xattr.c:816
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 6402:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 __kasan_slab_alloc+0x8c/0xcc mm/kasan/common.c:467
 kasan_slab_alloc include/linux/kasan.h:254 [inline]
 slab_post_alloc_hook+0x74/0x3f4 mm/slab.h:519
 slab_alloc_node mm/slub.c:3220 [inline]
 slab_alloc mm/slub.c:3228 [inline]
 kmem_cache_alloc+0x1dc/0x45c mm/slub.c:3233
 fib_table_insert+0x4c8/0x1550 net/ipv4/fib_trie.c:1356
 fib_magic+0x300/0x4b8 net/ipv4/fib_frontend.c:1092
 fib_add_ifaddr+0x118/0x4ec net/ipv4/fib_frontend.c:1114
 fib_inetaddr_event+0x130/0x220 net/ipv4/fib_frontend.c:1428
 notifier_call_chain kernel/notifier.c:83 [inline]
 blocking_notifier_call_chain+0xf0/0x198 kernel/notifier.c:318
 __inet_insert_ifa+0x8d4/0xad8 net/ipv4/devinet.c:568
 inet_rtm_newaddr+0xe90/0x173c net/ipv4/devinet.c:967
 rtnetlink_rcv_msg+0xa7c/0xdb4 net/core/rtnetlink.c:5647
 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2489
 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5665
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 __sys_sendto+0x388/0x4d0 net/socket.c:2063
 __do_sys_sendto net/socket.c:2075 [inline]
 __se_sys_sendto net/socket.c:2071 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2071
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

The buggy address belongs to the object at ffff0000e5308d68
 which belongs to the cache ip_fib_alias of size 56
The buggy address is located 0 bytes to the right of
 56-byte region [ffff0000e5308d68, ffff0000e5308da0)
The buggy address belongs to the page:
page:000000001ac67738 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x125308
memcg:ffff0000d6aef401
flags: 0x5ffc00000000200(slab|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000000200 0000000000000000 dead000000000122 ffff0000c2bf4f00
raw: 0000000000000000 00000000002e002e 00000001ffffffff ffff0000d6aef401
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000e5308c80: 00 00 00 fc fc fc fc 00 00 00 00 00 00 00 fc fc
 ffff0000e5308d00: fc fc 00 00 00 00 00 00 00 fc fc fc fc 00 00 00
>ffff0000e5308d80: 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 00 fc
                               ^
 ffff0000e5308e00: fc fc fc 00 00 00 00 00 00 00 fc fc fc fc 00 00
 ffff0000e5308e80: 00 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 00
==================================================================
MetaData crosses page boundary!!
lblock = 16a65700, size  = 622592
CPU: 0 PID: 6880 Comm: syz.3.483 Tainted: G    B             5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 __get_metapage+0xb54/0x1128 fs/jfs/jfs_metapage.c:597
 dtSearch+0x4e8/0x1f34 fs/jfs/jfs_dtree.c:623
 jfs_lookup+0x164/0x39c fs/jfs/namei.c:1459
 __lookup_slow+0x250/0x388 fs/namei.c:1663
 lookup_slow+0x60/0x84 fs/namei.c:1680
 walk_component+0x394/0x4cc fs/namei.c:1976
 lookup_last fs/namei.c:2431 [inline]
 path_lookupat+0x13c/0x3d0 fs/namei.c:2455
 filename_lookup+0x1c4/0x4c8 fs/namei.c:2484
 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2883
 user_path_at include/linux/namei.h:57 [inline]
 path_listxattr fs/xattr.c:804 [inline]
 __do_sys_listxattr fs/xattr.c:819 [inline]
 __se_sys_listxattr fs/xattr.c:816 [inline]
 __arm64_sys_listxattr+0xf4/0x21c fs/xattr.c:816
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
bread failed!
jfs_lookup: dtSearch returned -5