new mount options do not match the existing superblock, will be ignored BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 27887 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:2259 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2371 [inline] validate_chain kernel/locking/lockdep.c:2391 [inline] __lock_acquire.cold+0x420/0x57e kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:152 __wake_up_common_lock+0xb0/0x170 kernel/sched/wait.c:120 touch_mnt_namespace fs/namespace.c:780 [inline] touch_mnt_namespace fs/namespace.c:776 [inline] commit_tree+0x392/0x4a0 fs/namespace.c:916 attach_recursive_mnt+0xb2e/0xd80 fs/namespace.c:2035 graft_tree+0x187/0x210 fs/namespace.c:2120 do_add_mount+0x239/0x560 fs/namespace.c:2465 do_new_mount fs/namespace.c:2506 [inline] do_mount+0x1976/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4ffbbba0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4ffa12c168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f4ffbcd9f80 RCX: 00007f4ffbbba0f9 RDX: 0000000020000140 RSI: 0000000020000000 RDI: 0000000000000000 RBP: 00007f4ffbc15ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffffa4b0c6f R14: 00007f4ffa12c300 R15: 0000000000022000 audit: type=1804 audit(1678181539.176:1203): pid=27900 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir2013501201/syzkaller.INCy99/424/bus" dev="sda1" ino=14200 res=1 BTRFS info (device loop4): enabling inode map caching BTRFS info (device loop4): force clearing of disk cache BTRFS info (device loop4): disabling free space tree BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor.5 (27912) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (27924) new mount options do not match the existing superblock, will be ignored BTRFS info (device loop4): clearing free space tree BTRFS info (device loop4): clearing 1 ro feature flag BTRFS info (device loop4): clearing 2 ro feature flag new mount options do not match the existing superblock, will be ignored new mount options do not match the existing superblock, will be ignored overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir audit: type=1804 audit(1678181540.026:1204): pid=27991 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir2013501201/syzkaller.INCy99/426/bus" dev="sda1" ino=14170 res=1 overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor.5 (28019) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (28038) BTRFS info (device loop5): enabling inode map caching BTRFS info (device loop5): force clearing of disk cache BTRFS info (device loop5): disabling free space tree BTRFS info (device loop5): has skinny extents BTRFS info (device loop5): clearing free space tree BTRFS info (device loop5): clearing 1 ro feature flag BTRFS info (device loop5): clearing 2 ro feature flag BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (28075) BTRFS info (device loop4): enabling inode map caching BTRFS info (device loop4): force clearing of disk cache BTRFS info (device loop4): disabling free space tree BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor.5 (28158) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (28170) BTRFS info (device loop4): clearing free space tree BTRFS info (device loop4): clearing 1 ro feature flag BTRFS info (device loop4): clearing 2 ro feature flag BTRFS info (device loop5): enabling inode map caching BTRFS info (device loop5): force clearing of disk cache BTRFS info (device loop5): disabling free space tree BTRFS info (device loop5): has skinny extents BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (28248) BTRFS info (device loop5): clearing free space tree BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (28274) BTRFS info (device loop5): clearing 1 ro feature flag BTRFS info (device loop5): clearing 2 ro feature flag overlayfs: failed to resolve './file0': -2 overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: failed to resolve './file0': -2 overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: unrecognized mount option "euid=00000000000000060929" or missing value overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir overlayfs: filesystem on './bus' not supported as upperdir IPVS: ftp: loaded support on port[0] = 21 overlayfs: unrecognized mount option "metacopy=on>nfs_export=off" or missing value BTRFS info (device loop5): enabling inode map caching BTRFS info (device loop5): force clearing of disk cache BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (28353) BTRFS info (device loop5): disabling free space tree BTRFS info (device loop5): has skinny extents BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (28398) BTRFS info (device loop5): clearing free space tree BTRFS info (device loop5): clearing 1 ro feature flag BTRFS info (device loop5): clearing 2 ro feature flag BTRFS info (device loop5): enabling inode map caching BTRFS info (device loop5): force clearing of disk cache BTRFS info (device loop5): disabling free space tree BTRFS info (device loop5): has skinny extents BTRFS info (device loop5): clearing free space tree BTRFS info (device loop5): clearing 1 ro feature flag BTRFS info (device loop5): clearing 2 ro feature flag 9pnet: p9_fd_create_tcp (28335): problem connecting socket to 127.0.0.1 BTRFS info (device loop4): enabling inode map caching BTRFS info (device loop4): force clearing of disk cache BTRFS info (device loop4): disabling free space tree BTRFS info (device loop4): has skinny extents BTRFS info (device loop4): clearing free space tree BTRFS info (device loop4): clearing 1 ro feature flag BTRFS info (device loop4): clearing 2 ro feature flag BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor.5 (28533) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (28555) 9pnet: p9_fd_create_tcp (28482): problem connecting socket to 127.0.0.1 9pnet: p9_fd_create_tcp (28500): problem connecting socket to 127.0.0.1 BTRFS info (device loop5): enabling inode map caching BTRFS info (device loop5): force clearing of disk cache BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (28576) BTRFS info (device loop5): disabling free space tree BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (28609) BTRFS info (device loop5): has skinny extents BTRFS info (device loop5): clearing free space tree BTRFS info (device loop5): clearing 1 ro feature flag BTRFS info (device loop5): clearing 2 ro feature flag 9pnet: p9_fd_create_tcp (28583): problem connecting socket to 127.0.0.1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 28681 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc_trace+0x284/0x380 mm/slab.c:3623 kmalloc include/linux/slab.h:515 [inline] call_modprobe kernel/kmod.c:80 [inline] __request_module+0x31e/0xb80 kernel/kmod.c:171 __tcp_ulp_find_autoload net/ipv4/tcp_ulp.c:54 [inline] tcp_set_ulp+0x3ea/0x5f0 net/ipv4/tcp_ulp.c:146 do_tcp_setsockopt.constprop.0+0x306/0x2340 net/ipv4/tcp.c:2790 tcp_setsockopt net/ipv4/tcp.c:3110 [inline] tcp_setsockopt+0xb2/0xd0 net/ipv4/tcp.c:3102 __sys_setsockopt+0x14d/0x240 net/socket.c:2013 __do_sys_setsockopt net/socket.c:2024 [inline] __se_sys_setsockopt net/socket.c:2021 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2021 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7effd5fec0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007effd455e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007effd610bf80 RCX: 00007effd5fec0f9 RDX: 000000000000001f RSI: 0000000000000006 RDI: 0000000000000004 RBP: 00007effd455e1d0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020000100 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff1421d07f R14: 00007effd455e300 R15: 0000000000022000 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor.5 (28661) BTRFS info (device loop4): enabling inode map caching BTRFS info (device loop4): force clearing of disk cache BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (28692) BTRFS info (device loop4): disabling free space tree BTRFS info (device loop4): has skinny extents FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 28697 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc_track_caller+0x2a6/0x3c0 mm/slab.c:3742 kstrdup+0x36/0x70 mm/util.c:56 call_modprobe kernel/kmod.c:84 [inline] __request_module+0x33c/0xb80 kernel/kmod.c:171 __tcp_ulp_find_autoload net/ipv4/tcp_ulp.c:54 [inline] tcp_set_ulp+0x3ea/0x5f0 net/ipv4/tcp_ulp.c:146 do_tcp_setsockopt.constprop.0+0x306/0x2340 net/ipv4/tcp.c:2790 tcp_setsockopt net/ipv4/tcp.c:3110 [inline] tcp_setsockopt+0xb2/0xd0 net/ipv4/tcp.c:3102 __sys_setsockopt+0x14d/0x240 net/socket.c:2013 __do_sys_setsockopt net/socket.c:2024 [inline] __se_sys_setsockopt net/socket.c:2021 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2021 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7effd5fec0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007effd455e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007effd610bf80 RCX: 00007effd5fec0f9 RDX: 000000000000001f RSI: 0000000000000006 RDI: 0000000000000004 RBP: 00007effd455e1d0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020000100 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff1421d07f R14: 00007effd455e300 R15: 0000000000022000 BTRFS info (device loop4): clearing free space tree BTRFS info (device loop4): clearing 1 ro feature flag BTRFS info (device loop4): clearing 2 ro feature flag FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 28734 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc_trace+0x284/0x380 mm/slab.c:3623 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] call_usermodehelper_setup+0x84/0x300 kernel/umh.c:390 call_modprobe kernel/kmod.c:94 [inline] __request_module+0x42e/0xb80 kernel/kmod.c:171 __tcp_ulp_find_autoload net/ipv4/tcp_ulp.c:54 [inline] tcp_set_ulp+0x3ea/0x5f0 net/ipv4/tcp_ulp.c:146 do_tcp_setsockopt.constprop.0+0x306/0x2340 net/ipv4/tcp.c:2790 tcp_setsockopt net/ipv4/tcp.c:3110 [inline] tcp_setsockopt+0xb2/0xd0 net/ipv4/tcp.c:3102 __sys_setsockopt+0x14d/0x240 net/socket.c:2013 __do_sys_setsockopt net/socket.c:2024 [inline] __se_sys_setsockopt net/socket.c:2021 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2021 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7effd5fec0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007effd455e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007effd610bf80 RCX: 00007effd5fec0f9 RDX: 000000000000001f RSI: 0000000000000006 RDI: 0000000000000004 RBP: 00007effd455e1d0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020000100 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff1421d07f R14: 00007effd455e300 R15: 0000000000022000 BTRFS info (device loop5): enabling inode map caching BTRFS info (device loop5): force clearing of disk cache BTRFS info (device loop5): disabling free space tree BTRFS info (device loop5): has skinny extents BTRFS info (device loop5): clearing free space tree BTRFS info (device loop5): clearing 1 ro feature flag BTRFS info (device loop5): clearing 2 ro feature flag BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (28755) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (28787) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (28829) BTRFS info (device loop5): enabling inode map caching BTRFS info (device loop5): force clearing of disk cache BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (28882) BTRFS info (device loop5): disabling free space tree BTRFS info (device loop5): has skinny extents BTRFS info (device loop5): clearing free space tree BTRFS info (device loop5): clearing 1 ro feature flag BTRFS info (device loop5): clearing 2 ro feature flag BTRFS info (device loop4): enabling inode map caching BTRFS info (device loop4): force clearing of disk cache BTRFS info (device loop4): disabling free space tree BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor.5 (28933) BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (28966) BTRFS info (device loop4): clearing free space tree BTRFS info (device loop4): clearing 1 ro feature flag BTRFS info (device loop4): clearing 2 ro feature flag BTRFS info (device loop5): enabling inode map caching BTRFS info (device loop5): force clearing of disk cache BTRFS info (device loop5): disabling free space tree BTRFS info (device loop5): has skinny extents BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (29036) BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by systemd-udevd (29058) BTRFS info (device loop5): clearing free space tree BTRFS info (device loop5): clearing 1 ro feature flag BTRFS info (device loop5): clearing 2 ro feature flag BTRFS warning (device ): duplicate device /dev/loop4 devid 1 generation 8 scanned by syz-executor.4 (29088) BTRFS info (device loop4): enabling inode map caching BTRFS info (device loop4): force clearing of disk cache BTRFS info (device loop4): disabling free space tree BTRFS info (device loop4): has skinny extents BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor.5 (29161) BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by systemd-udevd (29183) BTRFS info (device loop4): clearing free space tree BTRFS info (device loop4): clearing 1 ro feature flag BTRFS info (device loop4): clearing 2 ro feature flag audit: type=1804 audit(1678181555.628:1205): pid=29223 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir3139219642/syzkaller.HC2S0D/1253/bus" dev="sda1" ino=14220 res=1 BTRFS warning (device ): duplicate device /dev/loop5 devid 1 generation 8 scanned by syz-executor.5 (29230) audit: type=1804 audit(1678181556.118:1206): pid=29231 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.3" name="/root/syzkaller-testdir3139219642/syzkaller.HC2S0D/1253/bus" dev="sda1" ino=14220 res=1