Warning: Permanently added '10.128.10.59' (ED25519) to the list of known hosts. executing program [ 42.692502][ T4024] loop0: detected capacity change from 0 to 32768 [ 42.729927][ T4024] ======================================================= [ 42.729927][ T4024] WARNING: The mand mount option has been deprecated and [ 42.729927][ T4024] and is ignored by this kernel. Remove the mand [ 42.729927][ T4024] option from the mount to silence this warning. [ 42.729927][ T4024] ======================================================= [ 42.759212][ T4024] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 43.277354][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 43.550190][ T4028] loop0: detected capacity change from 0 to 32768 [ 43.607290][ T4028] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 44.111711][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 44.370759][ T4031] loop0: detected capacity change from 0 to 32768 [ 44.421999][ T4031] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 44.910386][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 45.175829][ T4034] loop0: detected capacity change from 0 to 32768 [ 45.243099][ T4034] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 45.731034][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 45.992582][ T4037] loop0: detected capacity change from 0 to 32768 [ 46.052497][ T4037] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 46.549144][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 46.804526][ T4040] loop0: detected capacity change from 0 to 32768 [ 46.852719][ T4040] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 47.323299][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 47.591530][ T4043] loop0: detected capacity change from 0 to 32768 [ 47.662999][ T4043] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 48.146426][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 48.422894][ T4046] loop0: detected capacity change from 0 to 32768 [ 48.484034][ T4046] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 48.972862][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 49.242816][ T4050] loop0: detected capacity change from 0 to 32768 [ 49.294799][ T4050] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 49.785883][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 50.051205][ T4055] loop0: detected capacity change from 0 to 32768 [ 50.107588][ T4055] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 50.592957][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 50.873528][ T4060] loop0: detected capacity change from 0 to 32768 [ 50.926394][ T4060] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 51.431701][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 51.699442][ T4063] loop0: detected capacity change from 0 to 32768 [ 51.754251][ T4063] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 52.261180][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 52.520974][ T4067] loop0: detected capacity change from 0 to 32768 [ 52.585010][ T4067] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 53.076076][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 53.333188][ T4070] loop0: detected capacity change from 0 to 32768 [ 53.392126][ T4070] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 53.883587][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 54.154024][ T4073] loop0: detected capacity change from 0 to 32768 [ 54.211470][ T4073] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 54.685295][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 54.962532][ T4076] loop0: detected capacity change from 0 to 32768 [ 55.022818][ T4076] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 55.027995][ T4076] [ 55.028668][ T4076] ====================================================== [ 55.030480][ T4076] WARNING: possible circular locking dependency detected [ 55.032307][ T4076] 5.15.184-syzkaller #0 Not tainted [ 55.033669][ T4076] ------------------------------------------------------ [ 55.035417][ T4076] syz-executor326/4076 is trying to acquire lock: [ 55.037167][ T4076] ffff0000c21f1488 (&osb->system_file_mutex){+.+.}-{3:3}, at: ocfs2_get_system_file_inode+0x15c/0x5ec [ 55.040243][ T4076] [ 55.040243][ T4076] but task is already holding lock: [ 55.042297][ T4076] ffff0000e1c4a2e0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_write_begin+0x190/0x30c [ 55.045132][ T4076] [ 55.045132][ T4076] which lock already depends on the new lock. [ 55.045132][ T4076] [ 55.048045][ T4076] [ 55.048045][ T4076] the existing dependency chain (in reverse order) is: [ 55.050538][ T4076] [ 55.050538][ T4076] -> #1 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}: [ 55.052973][ T4076] down_read+0xc0/0x390 [ 55.054327][ T4076] ocfs2_read_virt_blocks+0x228/0x858 [ 55.055914][ T4076] ocfs2_find_entry+0x314/0x1b84 [ 55.057359][ T4076] ocfs2_find_files_on_disk+0x10c/0x388 [ 55.058936][ T4076] ocfs2_lookup_ino_from_name+0x60/0x114 [ 55.060537][ T4076] ocfs2_get_system_file_inode+0x288/0x5ec [ 55.062248][ T4076] ocfs2_init_global_system_inodes+0x2a8/0x594 [ 55.064033][ T4076] ocfs2_fill_super+0x3128/0x4074 [ 55.065446][ T4076] mount_bdev+0x264/0x358 [ 55.066751][ T4076] ocfs2_mount+0x44/0x58 [ 55.067993][ T4076] legacy_get_tree+0xd4/0x16c [ 55.069399][ T4076] vfs_get_tree+0x90/0x274 [ 55.070668][ T4076] do_new_mount+0x228/0x810 [ 55.072100][ T4076] path_mount+0x5b4/0x1000 [ 55.073445][ T4076] __arm64_sys_mount+0x514/0x5e4 [ 55.074885][ T4076] invoke_syscall+0x98/0x2b8 [ 55.076194][ T4076] el0_svc_common+0x138/0x258 [ 55.077540][ T4076] do_el0_svc+0x58/0x14c [ 55.078771][ T4076] el0_svc+0x78/0x1e0 [ 55.079889][ T4076] el0t_64_sync_handler+0xcc/0xe4 [ 55.081410][ T4076] el0t_64_sync+0x1a0/0x1a4 [ 55.082924][ T4076] [ 55.082924][ T4076] -> #0 (&osb->system_file_mutex){+.+.}-{3:3}: [ 55.085158][ T4076] __lock_acquire+0x2928/0x651c [ 55.086599][ T4076] lock_acquire+0x1f4/0x620 [ 55.087968][ T4076] __mutex_lock_common+0x194/0x1edc [ 55.089485][ T4076] mutex_lock_nested+0xac/0x11c [ 55.090928][ T4076] ocfs2_get_system_file_inode+0x15c/0x5ec [ 55.092691][ T4076] ocfs2_reserve_local_alloc_bits+0xe0/0x260c [ 55.094468][ T4076] ocfs2_reserve_clusters_with_limit+0x198/0x9e0 [ 55.096317][ T4076] ocfs2_lock_allocators+0x27c/0x518 [ 55.097859][ T4076] ocfs2_write_begin_nolock+0x1e88/0x3764 [ 55.099564][ T4076] ocfs2_write_begin+0x1b4/0x30c [ 55.101029][ T4076] generic_perform_write+0x204/0x480 [ 55.102575][ T4076] __generic_file_write_iter+0x23c/0x454 [ 55.104235][ T4076] ocfs2_file_write_iter+0x12e0/0x1b84 [ 55.105807][ T4076] do_iter_readv_writev+0x3a0/0x4f8 [ 55.107314][ T4076] do_iter_write+0x1c4/0x670 [ 55.108667][ T4076] do_pwritev+0x1c8/0x2fc [ 55.109944][ T4076] __arm64_sys_pwritev2+0xd4/0x108 [ 55.111437][ T4076] invoke_syscall+0x98/0x2b8 [ 55.112782][ T4076] el0_svc_common+0x138/0x258 [ 55.114117][ T4076] do_el0_svc+0x58/0x14c [ 55.115374][ T4076] el0_svc+0x78/0x1e0 [ 55.116535][ T4076] el0t_64_sync_handler+0xcc/0xe4 [ 55.118018][ T4076] el0t_64_sync+0x1a0/0x1a4 [ 55.119361][ T4076] [ 55.119361][ T4076] other info that might help us debug this: [ 55.119361][ T4076] [ 55.122056][ T4076] Possible unsafe locking scenario: [ 55.122056][ T4076] [ 55.124086][ T4076] CPU0 CPU1 [ 55.125520][ T4076] ---- ---- [ 55.126906][ T4076] lock(&ocfs2_file_ip_alloc_sem_key); [ 55.128373][ T4076] lock(&osb->system_file_mutex); [ 55.130409][ T4076] lock(&ocfs2_file_ip_alloc_sem_key); [ 55.132578][ T4076] lock(&osb->system_file_mutex); [ 55.133979][ T4076] [ 55.133979][ T4076] *** DEADLOCK *** [ 55.133979][ T4076] [ 55.136270][ T4076] 3 locks held by syz-executor326/4076: [ 55.137791][ T4076] #0: ffff0000cb32e460 (sb_writers#8){.+.+}-{0:0}, at: do_pwritev+0x1b4/0x2fc [ 55.140248][ T4076] #1: ffff0000e1c4a648 (&sb->s_type->i_mutex_key#17){+.+.}-{3:3}, at: ocfs2_file_write_iter+0x388/0x1b84 [ 55.143411][ T4076] #2: ffff0000e1c4a2e0 (&ocfs2_file_ip_alloc_sem_key){++++}-{3:3}, at: ocfs2_write_begin+0x190/0x30c [ 55.146360][ T4076] [ 55.146360][ T4076] stack backtrace: [ 55.148053][ T4076] CPU: 0 PID: 4076 Comm: syz-executor326 Not tainted 5.15.184-syzkaller #0 [ 55.150276][ T4076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 55.152954][ T4076] Call trace: [ 55.153824][ T4076] dump_backtrace+0x0/0x43c [ 55.154987][ T4076] show_stack+0x2c/0x3c [ 55.156121][ T4076] __dump_stack+0x30/0x40 [ 55.157277][ T4076] dump_stack_lvl+0xf8/0x160 [ 55.158475][ T4076] dump_stack+0x1c/0x5c [ 55.159590][ T4076] print_circular_bug+0x148/0x1b0 [ 55.160971][ T4076] check_noncircular+0x240/0x2d4 [ 55.162304][ T4076] __lock_acquire+0x2928/0x651c [ 55.163607][ T4076] lock_acquire+0x1f4/0x620 [ 55.164742][ T4076] __mutex_lock_common+0x194/0x1edc [ 55.166116][ T4076] mutex_lock_nested+0xac/0x11c [ 55.167411][ T4076] ocfs2_get_system_file_inode+0x15c/0x5ec [ 55.168936][ T4076] ocfs2_reserve_local_alloc_bits+0xe0/0x260c [ 55.170534][ T4076] ocfs2_reserve_clusters_with_limit+0x198/0x9e0 [ 55.172224][ T4076] ocfs2_lock_allocators+0x27c/0x518 [ 55.173614][ T4076] ocfs2_write_begin_nolock+0x1e88/0x3764 [ 55.175158][ T4076] ocfs2_write_begin+0x1b4/0x30c [ 55.176476][ T4076] generic_perform_write+0x204/0x480 [ 55.177915][ T4076] __generic_file_write_iter+0x23c/0x454 [ 55.179472][ T4076] ocfs2_file_write_iter+0x12e0/0x1b84 [ 55.180991][ T4076] do_iter_readv_writev+0x3a0/0x4f8 [ 55.182426][ T4076] do_iter_write+0x1c4/0x670 [ 55.183641][ T4076] do_pwritev+0x1c8/0x2fc [ 55.184795][ T4076] __arm64_sys_pwritev2+0xd4/0x108 [ 55.186117][ T4076] invoke_syscall+0x98/0x2b8 [ 55.187349][ T4076] el0_svc_common+0x138/0x258 [ 55.188638][ T4076] do_el0_svc+0x58/0x14c [ 55.189798][ T4076] el0_svc+0x78/0x1e0 [ 55.190850][ T4076] el0t_64_sync_handler+0xcc/0xe4 [ 55.192255][ T4076] el0t_64_sync+0x1a0/0x1a4 [ 55.542490][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 55.741128][ T4079] loop0: detected capacity change from 0 to 32768 [ 55.791416][ T4079] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 56.143079][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 56.329896][ T4082] loop0: detected capacity change from 0 to 32768 [ 56.376433][ T4082] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 56.719481][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 56.931286][ T4085] loop0: detected capacity change from 0 to 32768 [ 56.977806][ T4085] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 57.325803][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 57.520982][ T4088] loop0: detected capacity change from 0 to 32768 [ 57.567164][ T4088] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 57.940368][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 58.140757][ T4091] loop0: detected capacity change from 0 to 32768 [ 58.207401][ T4091] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 58.567366][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 58.778003][ T4094] loop0: detected capacity change from 0 to 32768 [ 58.818030][ T4094] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 59.165929][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 59.376505][ T4097] loop0: detected capacity change from 0 to 32768 [ 59.447276][ T4097] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 59.793799][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 59.981111][ T4100] loop0: detected capacity change from 0 to 32768 [ 60.027746][ T4100] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 60.428111][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 60.618325][ T4103] loop0: detected capacity change from 0 to 32768 [ 60.667824][ T4103] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 61.007857][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 61.202403][ T4106] loop0: detected capacity change from 0 to 32768 [ 61.248935][ T4106] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 61.623891][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 61.813561][ T4109] loop0: detected capacity change from 0 to 32768 [ 61.858611][ T4109] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 62.211445][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 62.432164][ T4112] loop0: detected capacity change from 0 to 32768 [ 62.477421][ T4112] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 62.909316][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 63.109663][ T4115] loop0: detected capacity change from 0 to 32768 [ 63.159211][ T4115] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 63.516205][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 63.711860][ T4118] loop0: detected capacity change from 0 to 32768 [ 63.777109][ T4118] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 64.129106][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 64.341179][ T4121] loop0: detected capacity change from 0 to 32768 [ 64.389117][ T4121] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 64.749660][ T4023] ocfs2: Unmounting device (7,0) on (node local) executing program [ 64.947410][ T4124] loop0: detected capacity change from 0 to 32768 [ 65.017713][ T4124] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.