attempt to access beyond end of device loop8: rw=0, want=6491538, limit=128 Buffer I/O error on dev loop8, logical block 3245768, async page read ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6896 at fs/inode.c:389 inc_nlink+0x130/0x168 fs/inode.c:389 Modules linked in: CPU: 1 PID: 6896 Comm: syz.8.456 Not tainted 5.15.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 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 : ffff80001fd57b90 x29: ffff80001fd57b90 x28: dfff800000000000 x27: 0000000000000000 x26: 1fffe0001ee9e00c x25: ffff80001155cf48 x24: 0000000000000000 x23: 1fffe0001ee9e010 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000f74f0038 x19: ffff0000f74f0080 x18: 0000000000000000 x17: 0000000000000002 x16: ffff8000111a3970 x15: 0000000000000003 x14: 00000000ffff8000 x13: 00000000d711a970 x12: 0000000000080000 x11: 0000000000006230 x10: ffff80002b576000 x9 : ffff80000894f000 x8 : 0000000000006231 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000000 x2 : ffff0000dc0d31a0 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: 7580 hardirqs last enabled at (7579): [] kasan_quarantine_put+0xc4/0x204 mm/kasan/quarantine.c:231 hardirqs last disabled at (7580): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (7556): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (7554): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace e567f7298387b8ca ]---