ERROR: (device loop5): remounting filesystem as read-only
ERROR: (device loop5): diWrite: ixpxd invalid
ERROR: (device loop5): txAbort: 
------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:784:21
index -1 is out of range for type 'struct dtslot[128]'
CPU: 1 UID: 0 PID: 8268 Comm: syz.5.280 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 ubsan_epilogue+0x14/0x48 lib/ubsan.c:233
 __ubsan_handle_out_of_bounds+0xd0/0xfc lib/ubsan.c:455
 dtSearch+0x1664/0x1d00 fs/jfs/jfs_dtree.c:784
 jfs_lookup+0x13c/0x32c fs/jfs/namei.c:1461
 lookup_open fs/namei.c:4413 [inline]
 open_last_lookups fs/namei.c:4540 [inline]
 path_openat+0x1038/0x3114 fs/namei.c:4784
 do_filp_open+0x18c/0x36c fs/namei.c:4814
 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430
 do_sys_open fs/open.c:1436 [inline]
 __do_sys_openat fs/open.c:1452 [inline]
 __se_sys_openat fs/open.c:1447 [inline]
 __arm64_sys_openat+0x120/0x158 fs/open.c:1447
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
---[ end trace ]---
==================================================================
BUG: KASAN: slab-out-of-bounds in addressPXD fs/jfs/jfs_types.h:80 [inline]
BUG: KASAN: slab-out-of-bounds in dtSearch+0x1680/0x1d00 fs/jfs/jfs_dtree.c:785
Read of size 4 at addr ffff0000d7870fe0 by task syz.5.280/8268

CPU: 0 UID: 0 PID: 8268 Comm: syz.5.280 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 print_address_description+0xa8/0x238 mm/kasan/report.c:378
 print_report+0x68/0x84 mm/kasan/report.c:482
 kasan_report+0xb0/0x110 mm/kasan/report.c:595
 __asan_report_load4_noabort+0x20/0x2c mm/kasan/report_generic.c:380
 addressPXD fs/jfs/jfs_types.h:80 [inline]
 dtSearch+0x1680/0x1d00 fs/jfs/jfs_dtree.c:785
 jfs_lookup+0x13c/0x32c fs/jfs/namei.c:1461
 lookup_open fs/namei.c:4413 [inline]
 open_last_lookups fs/namei.c:4540 [inline]
 path_openat+0x1038/0x3114 fs/namei.c:4784
 do_filp_open+0x18c/0x36c fs/namei.c:4814
 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430
 do_sys_open fs/open.c:1436 [inline]
 __do_sys_openat fs/open.c:1452 [inline]
 __se_sys_openat fs/open.c:1447 [inline]
 __arm64_sys_openat+0x120/0x158 fs/open.c:1447
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596

Allocated by task 7984:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x40/0x78 mm/kasan/common.c:78
 kasan_save_alloc_info+0x44/0x54 mm/kasan/generic.c:570
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x9c/0xb4 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5657 [inline]
 __kmalloc_noprof+0x410/0x764 mm/slub.c:5669
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 new_dir fs/proc/proc_sysctl.c:966 [inline]
 get_subdir fs/proc/proc_sysctl.c:1010 [inline]
 sysctl_mkdir_p fs/proc/proc_sysctl.c:1320 [inline]
 __register_sysctl_table+0xa20/0x107c fs/proc/proc_sysctl.c:1395
 register_net_sysctl_sz+0x340/0x3c0 net/sysctl_net.c:171
 neigh_sysctl_register+0x804/0x8d8 net/core/neighbour.c:3886
 addrconf_sysctl_register+0xb4/0x198 net/ipv6/addrconf.c:7367
 ipv6_add_dev+0xa48/0x1038 net/ipv6/addrconf.c:460
 addrconf_notify+0x4f4/0xd14 net/ipv6/addrconf.c:3650
 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85
 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453
 call_netdevice_notifiers_info net/core/dev.c:2230 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2268 [inline]
 call_netdevice_notifiers+0xf4/0x18c net/core/dev.c:2282
 register_netdevice+0xdc4/0x1244 net/core/dev.c:11431
 cfg80211_register_netdevice+0x110/0x294 net/wireless/core.c:1534
 ieee80211_if_add+0xe24/0x1440 net/mac80211/iface.c:2337
 ieee80211_register_hw+0x2940/0x337c net/mac80211/main.c:1607
 mac80211_hwsim_new_radio+0x257c/0x4434 drivers/net/wireless/virtual/mac80211_hwsim.c:5810
 hwsim_new_radio_nl+0xa68/0x1644 drivers/net/wireless/virtual/mac80211_hwsim.c:6504
 genl_family_rcv_msg_doit+0x1d8/0x2bc net/netlink/genetlink.c:1115
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0x450/0x624 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x220/0x3fc net/netlink/af_netlink.c:2550
 genl_rcv+0x38/0x50 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x694/0x8c4 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x648/0x930 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x36c/0x4f4 net/socket.c:2206
 __do_sys_sendto net/socket.c:2213 [inline]
 __se_sys_sendto net/socket.c:2209 [inline]
 __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2209
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596

The buggy address belongs to the object at ffff0000d7870f00
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 34 bytes to the right of
 allocated 190-byte region [ffff0000d7870f00, ffff0000d7870fbe)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117870
flags: 0x5ffc00000000000(node=0|zone=2|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 05ffc00000000000 ffff0000c00013c0 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d7870e80: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000d7870f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000d7870f80: 00 00 00 00 00 00 00 06 fc fc fc fc fc fc fc fc
                                                       ^
 ffff0000d7871000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000d7871080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
ERROR: (device loop5): dtSearch: stack overrun!

ERROR: (device loop5): remounting filesystem as read-only
btstack dump:
bn = 0, index = 0
bn = 20, index = 0
bn = 0, index = 0
bn = 20, index = 0
bn = 0, index = 0
bn = 20, index = 0
bn = 0, index = 0
bn = 0, index = 0
jfs_lookup: dtSearch returned -5
ERROR: (device loop5): dtSearch: stack overrun!

btstack dump:
bn = 0, index = 0
bn = 20, index = 0
bn = 0, index = 0
bn = 20, index = 0
bn = 0, index = 0
bn = 20, index = 0
bn = 0, index = 0
bn = 0, index = 0
jfs_lookup: dtSearch returned -5
ERROR: (device loop5): dtReadFirst: stbl[0] out of bound