syz.2.21: attempt to access beyond end of device
loop2: rw=0, sector=6491536, nr_sectors = 2 limit=128
Buffer I/O error on dev loop2, logical block 3245768, async page read
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4471 at fs/inode.c:389 inc_nlink+0x128/0x154 fs/inode.c:389
Modules linked in:
CPU: 0 PID: 4471 Comm: syz.2.21 Not tainted 6.1.135-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : inc_nlink+0x128/0x154 fs/inode.c:389
lr : inc_nlink+0x128/0x154 fs/inode.c:389
sp : ffff800020e87b90
x29: ffff800020e87b90 x28: dfff800000000000 x27: 0000000000000000
x26: 1fffe0001be6d00c x25: ffff800011d04e88 x24: 0000000000000080
x23: 1fffe0001be6d010 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000df368038 x19: ffff0000df368080 x18: ffff800011a7bd00
x17: 1fffe000367c2f76 x16: ffff8000082d1c08 x15: ffff80001506d000
x14: 00000000ffff8000 x13: 0000000051fb667e x12: 0000000000080000
x11: 0000000000019090 x10: ffff80002435a000 x9 : ffff8000089fb2e0
x8 : 0000000000019091 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000001 x3 : 0000000000000080
x2 : ffff0000f4d5fa70 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 inc_nlink+0x128/0x154 fs/inode.c:389
 inode_inc_link_count include/linux/fs.h:2576 [inline]
 sysv_mkdir+0x2c/0x138 fs/sysv/namei.c:119
 vfs_mkdir+0x314/0x4d4 fs/namei.c:4106
 do_mkdirat+0x1b4/0x3e0 fs/namei.c:4131
 __do_sys_mkdirat fs/namei.c:4146 [inline]
 __se_sys_mkdirat fs/namei.c:4144 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4144
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 3720
hardirqs last  enabled at (3719): [<ffff8000119135fc>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (3719): [<ffff8000119135fc>] exit_to_kernel_mode+0xcc/0xfc arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (3720): [<ffff800011911588>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (3148): [<ffff8000080306dc>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (3146): [<ffff8000080306a8>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
unable to read i-node block
sysv_free_inode: unable to read inode block on device loop2