Extracting prog: 2m8.708293699s Minimizing prog: 47.5µs Simplifying prog options: 0s Extracting C: 1m13.969779923s Simplifying C: 6m8.597221042s 6 programs, timeouts [30s 1m40s 6m0s] extracting reproducer from 6 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 detailed listing: executing program 0: syz_mount_image$ocfs2(&(0x7f0000004440), &(0x7f0000000040)='./file1\x00', 0x10008d0, 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program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock single: successfully extracted reproducer found reproducer with 1 syscalls minimizing guilty program extracting C reproducer testing compiled C program (duration=51.334393377s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock simplifying C reproducer testing compiled C program (duration=51.334393377s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock testing compiled C program (duration=51.334393377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock testing compiled C program (duration=51.334393377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock testing compiled C program (duration=51.334393377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock testing compiled C program (duration=51.334393377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock testing compiled C program (duration=51.334393377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock testing compiled C program (duration=51.334393377s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ocfs2 program crashed: WARNING: bad unlock balance in ocfs2_inode_cache_io_unlock reproducing took 9m31.275365085s repro crashed as (corrupted=false): option from the mount to silence this warning. ======================================================= (syz-executor171,4294,1):ocfs2_read_blocks:240 ERROR: status = -12 ===================================== WARNING: bad unlock balance detected! 6.1.111-syzkaller #0 Not tainted ------------------------------------- syz-executor171/4294 is trying to release lock (&oi->ip_io_mutex) at: [] ocfs2_inode_cache_io_unlock+0x20/0x30 fs/ocfs2/inode.c:1648 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor171/4294: #0: ffff0000da0760e0 (&type->s_umount_key#39/1){+.+.}-{3:3}, at: alloc_super+0x1b4/0x824 fs/super.c:228 stack backtrace: CPU: 1 PID: 4294 Comm: syz-executor171 Not tainted 6.1.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_unlock_imbalance_bug+0x250/0x2a4 kernel/locking/lockdep.c:5102 lock_release+0x4dc/0xa50 kernel/locking/lockdep.c:5682 __mutex_unlock_slowpath+0xe0/0x6cc kernel/locking/mutex.c:907 mutex_unlock+0x24/0x30 kernel/locking/mutex.c:543 ocfs2_inode_cache_io_unlock+0x20/0x30 fs/ocfs2/inode.c:1648 ocfs2_metadata_cache_io_unlock+0x6c/0x90 fs/ocfs2/uptodate.c:95 ocfs2_read_blocks+0x11d0/0x17e8 fs/ocfs2/buffer_head_io.c:394 ocfs2_map_slot_buffers fs/ocfs2/slot_map.c:385 [inline] ocfs2_init_slot_info+0x920/0x1300 fs/ocfs2/slot_map.c:424 ocfs2_initialize_super fs/ocfs2/super.c:2274 [inline] ocfs2_fill_super+0x2894/0x4a0c fs/ocfs2/super.c:994 mount_bdev+0x274/0x370 fs/super.c:1443 ocfs2_mount+0x44/0x58 fs/ocfs2/super.c:1186 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x278/0x8fc fs/namespace.c:3051 path_mount+0x590/0xe5c fs/namespace.c:3381 do_mount fs/namespace.c:3394 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount fs/namespace.c:3579 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3579 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 (syz-executor171,4294,1):ocfs2_map_slot_buffers:388 ERROR: status = -12 (syz-executor171,4294,1):ocfs2_init_slot_info:426 ERROR: status = -12 (syz-executor171,4294,1):ocfs2_initialize_super:2276 ERROR: status = -12 (syz-executor171,4294,1):ocfs2_fill_super:1176 ERROR: status = -12 final repro crashed as (corrupted=false): option from the mount to silence this warning. ======================================================= (syz-executor171,4294,1):ocfs2_read_blocks:240 ERROR: status = -12 ===================================== WARNING: bad unlock balance detected! 6.1.111-syzkaller #0 Not tainted ------------------------------------- syz-executor171/4294 is trying to release lock (&oi->ip_io_mutex) at: [] ocfs2_inode_cache_io_unlock+0x20/0x30 fs/ocfs2/inode.c:1648 but there are no more locks to release! other info that might help us debug this: 1 lock held by syz-executor171/4294: #0: ffff0000da0760e0 (&type->s_umount_key#39/1){+.+.}-{3:3}, at: alloc_super+0x1b4/0x824 fs/super.c:228 stack backtrace: CPU: 1 PID: 4294 Comm: syz-executor171 Not tainted 6.1.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_unlock_imbalance_bug+0x250/0x2a4 kernel/locking/lockdep.c:5102 lock_release+0x4dc/0xa50 kernel/locking/lockdep.c:5682 __mutex_unlock_slowpath+0xe0/0x6cc kernel/locking/mutex.c:907 mutex_unlock+0x24/0x30 kernel/locking/mutex.c:543 ocfs2_inode_cache_io_unlock+0x20/0x30 fs/ocfs2/inode.c:1648 ocfs2_metadata_cache_io_unlock+0x6c/0x90 fs/ocfs2/uptodate.c:95 ocfs2_read_blocks+0x11d0/0x17e8 fs/ocfs2/buffer_head_io.c:394 ocfs2_map_slot_buffers fs/ocfs2/slot_map.c:385 [inline] ocfs2_init_slot_info+0x920/0x1300 fs/ocfs2/slot_map.c:424 ocfs2_initialize_super fs/ocfs2/super.c:2274 [inline] ocfs2_fill_super+0x2894/0x4a0c fs/ocfs2/super.c:994 mount_bdev+0x274/0x370 fs/super.c:1443 ocfs2_mount+0x44/0x58 fs/ocfs2/super.c:1186 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632 vfs_get_tree+0x90/0x274 fs/super.c:1573 do_new_mount+0x278/0x8fc fs/namespace.c:3051 path_mount+0x590/0xe5c fs/namespace.c:3381 do_mount fs/namespace.c:3394 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount fs/namespace.c:3579 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3579 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 (syz-executor171,4294,1):ocfs2_map_slot_buffers:388 ERROR: status = -12 (syz-executor171,4294,1):ocfs2_init_slot_info:426 ERROR: status = -12 (syz-executor171,4294,1):ocfs2_initialize_super:2276 ERROR: status = -12 (syz-executor171,4294,1):ocfs2_fill_super:1176 ERROR: status = -12