attempt to access beyond end of device
loop5: rw=0, want=6491538, limit=128
Buffer I/O error on dev loop5, logical block 3245768, async page read
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5828 at fs/inode.c:389 inc_nlink+0x130/0x168 fs/inode.c:389
Modules linked in:
CPU: 1 PID: 5828 Comm: syz.5.371 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : inc_nlink+0x130/0x168 fs/inode.c:389
lr : inc_nlink+0x130/0x168 fs/inode.c:389
sp : ffff8000206a7b90
x29: ffff8000206a7b90 x28: dfff800000000000 x27: 0000000000000000
x26: 1fffe0001e11400c x25: ffff80001157bb08 x24: 0000000000000000
x23: 1fffe0001e114010 x22: dfff800000000000 x21: 0000000000000001
x20: ffff0000f08a0038 x19: ffff0000f08a0080 x18: 0000000000000000
x17: 0000000000000002 x16: ffff8000111bc798 x15: 0000000000000003
x14: 00000000ffff8000 x13: 00000000894a8e4c x12: 0000000000080000
x11: 000000000000c78c x10: ffff80002a495000 x9 : ffff80000893fa74
x8 : 000000000000c78d x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000000
x2 : ffff0000dd1a7608 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 inc_nlink+0x130/0x168 fs/inode.c:389
 inode_inc_link_count include/linux/fs.h:2497 [inline]
 sysv_mkdir+0x2c/0x138 fs/sysv/namei.c:119
 vfs_mkdir+0x314/0x4d4 fs/namei.c:4065
 do_mkdirat+0x1bc/0x508 fs/namei.c:4090
 __do_sys_mkdirat fs/namei.c:4105 [inline]
 __se_sys_mkdirat fs/namei.c:4103 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4103
 __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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 16334
hardirqs last  enabled at (16333): [<ffff80000883da00>] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231
hardirqs last disabled at (16334): [<ffff8000111b7ff8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (16272): [<ffff800008031f40>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (16270): [<ffff800008031f0c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 3c4cb254f9bb5ee5 ]---
unable to read i-node block
sysv_new_block: new block 64 is not in data zone
sysv_free_inode: unable to read inode block on device loop5