attempt to access beyond end of device
loop0: rw=0, want=6491538, limit=128
Buffer I/O error on dev loop0, logical block 3245768, async page read
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4964 at fs/inode.c:389 inc_nlink+0x130/0x160 fs/inode.c:389
Modules linked in:
CPU: 0 PID: 4964 Comm: syz.0.16 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : inc_nlink+0x130/0x160 fs/inode.c:389
lr : inc_nlink+0x130/0x160 fs/inode.c:389
sp : ffff80001f387b90
x29: ffff80001f387b90 x28: dfff800000000000 x27: 0000000000000000
x26: 1fffe0001bd7000c x25: ffff80001162efc8 x24: 00000000000001c0
x23: 1fffe0001bd70010 x22: dfff800000000000 x21: 0000000000000000
x20: ffff0000deb80038 x19: ffff0000deb80080 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000112695d4 x15: 0000000000000000
x14: 0000000000000001 x13: 1fffe00018071756 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800008948b60
x8 : ffff0000c82eb680 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 000000000000000c x3 : 00000000000001c0
x2 : ffff0000cc734000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 inc_nlink+0x130/0x160 fs/inode.c:389
 inode_inc_link_count include/linux/fs.h:2498 [inline]
 sysv_mkdir+0x2c/0x138 fs/sysv/namei.c:119
 vfs_mkdir+0x314/0x4d4 fs/namei.c:4073
 do_mkdirat+0x1c0/0x514 fs/namei.c:4098
 __do_sys_mkdirat fs/namei.c:4113 [inline]
 __se_sys_mkdirat fs/namei.c:4111 [inline]
 __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4111
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 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: 1864
hardirqs last  enabled at (1863): [<ffff800008846154>] kasan_quarantine_put+0xc4/0x200 mm/kasan/quarantine.c:231
hardirqs last disabled at (1864): [<ffff800011264f9c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (1794): [<ffff800008031f94>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (1792): [<ffff800008031f60>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 82658b3ba76b1dc4 ]---
attempt to access beyond end of device
loop0: rw=0, want=6491538, limit=128
Buffer I/O error on dev loop0, logical block 3245768, async page read
sysv_free_block: flc_count > flc_size