[ 18.716219][ T3640] 8021q: adding VLAN 0 to HW filter on device bond0 [ 18.721607][ T3640] eql: remember to turn off Van-Jacobson compression on your slave devices [ 18.770076][ T148] gvnic 0000:00:00.0 enp0s0: Device link is up. [ 18.773308][ T1529] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s0: link becomes ready Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.141' (ED25519) to the list of known hosts. executing program syzkaller login: [ 43.153155][ T3964] loop0: detected capacity change from 0 to 4096 [ 43.156719][ T3964] ======================================================= [ 43.156719][ T3964] WARNING: The mand mount option has been deprecated and [ 43.156719][ T3964] and is ignored by this kernel. Remove the mand [ 43.156719][ T3964] option from the mount to silence this warning. [ 43.156719][ T3964] ======================================================= [ 43.167621][ T3964] ntfs3: loop0: Different NTFS' sector size (4096) and media sector size (512) [ 43.182885][ T3964] ntfs3: loop0: Mark volume as dirty due to NTFS errors [ 43.195848][ T3964] [ 43.196496][ T3964] ============================================ [ 43.198018][ T3964] WARNING: possible recursive locking detected [ 43.199576][ T3964] 5.15.132-syzkaller #0 Not tainted [ 43.200822][ T3964] -------------------------------------------- [ 43.202310][ T3964] syz-executor275/3964 is trying to acquire lock: [ 43.203876][ T3964] ffff0000dc7e1e80 (&ni->ni_lock/4){+.+.}-{3:3}, at: mi_read+0x26c/0x4d8 [ 43.206089][ T3964] [ 43.206089][ T3964] but task is already holding lock: [ 43.208016][ T3964] ffff0000dc7e6840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf8/0x1f8 [ 43.210331][ T3964] [ 43.210331][ T3964] other info that might help us debug this: [ 43.212476][ T3964] Possible unsafe locking scenario: [ 43.212476][ T3964] [ 43.214429][ T3964] CPU0 [ 43.215289][ T3964] ---- [ 43.216125][ T3964] lock(&ni->ni_lock/4); [ 43.217243][ T3964] lock(&ni->ni_lock/4); [ 43.218419][ T3964] [ 43.218419][ T3964] *** DEADLOCK *** [ 43.218419][ T3964] [ 43.220487][ T3964] May be due to missing lock nesting notation [ 43.220487][ T3964] [ 43.222588][ T3964] 2 locks held by syz-executor275/3964: [ 43.223982][ T3964] #0: ffff0000dc7e6ae0 (&type->i_mutex_dir_key#6){++++}-{3:3}, at: lookup_slow+0x50/0x84 [ 43.226659][ T3964] #1: ffff0000dc7e6840 (&ni->ni_lock/4){+.+.}-{3:3}, at: ntfs_lookup+0xf8/0x1f8 [ 43.229000][ T3964] [ 43.229000][ T3964] stack backtrace: [ 43.230490][ T3964] CPU: 0 PID: 3964 Comm: syz-executor275 Not tainted 5.15.132-syzkaller #0 [ 43.232707][ T3964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 43.235301][ T3964] Call trace: [ 43.236097][ T3964] dump_backtrace+0x0/0x530 [ 43.237254][ T3964] show_stack+0x2c/0x3c [ 43.238311][ T3964] dump_stack_lvl+0x108/0x170 [ 43.239544][ T3964] dump_stack+0x1c/0x58 [ 43.240638][ T3964] __lock_acquire+0x62b4/0x7620 [ 43.241886][ T3964] lock_acquire+0x240/0x77c [ 43.243030][ T3964] __mutex_lock_common+0x194/0x2154 [ 43.244419][ T3964] mutex_lock_nested+0xa4/0xf8 [ 43.245653][ T3964] mi_read+0x26c/0x4d8 [ 43.246702][ T3964] ntfs_iget5+0x358/0x2bcc [ 43.247833][ T3964] dir_search_u+0x298/0x324 [ 43.248991][ T3964] ntfs_lookup+0x108/0x1f8 [ 43.250115][ T3964] __lookup_slow+0x250/0x388 [ 43.251318][ T3964] lookup_slow+0x60/0x84 [ 43.252438][ T3964] walk_component+0x394/0x4cc [ 43.253660][ T3964] path_lookupat+0x13c/0x3d0 [ 43.254861][ T3964] filename_lookup+0x1c4/0x4c8 [ 43.256086][ T3964] user_path_at_empty+0x5c/0x1a4 [ 43.257367][ T3964] vfs_statx+0xf8/0x378 [ 43.258440][ T3964] __arm64_sys_newfstatat+0x110/0x194 [ 43.259855][ T3964] invoke_syscall+0x98/0x2b8 [ 43.261041][ T3964] el0_svc_common+0x138/0x258 [ 43.262278][ T3964] do_el0_svc+0x58/0x14c [ 43.263351][ T3964] el0_svc+0x7c/0x1f0 [ 43.264389][ T3964] el0t_64_sync_handler+0x84/0xe4 [ 43.265668][ T3964] el0t_64_sync+0x1a0/0x1a4