Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program [ 587.507524][ T5111] ======================================================= [ 587.507524][ T5111] WARNING: The mand mount option has been deprecated and [ 587.507524][ T5111] and is ignored by this kernel. Remove the mand [ 587.507524][ T5111] option from the mount to silence this warning. [ 587.507524][ T5111] ======================================================= [ 587.528790][ T5125] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program [ 587.603119][ T5129] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 587.619186][ T5130] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 587.644003][ T5131] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program [ 587.669267][ T5133] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 587.682964][ T5111] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 587.698553][ T5147] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program executing program [ 587.730215][ T5148] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 587.751127][ T5150] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 587.772039][ T5154] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 592.870201][ T5414] EXT4-fs: 51 callbacks suppressed [ 592.870211][ T5414] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 592.887162][ T5415] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program executing program [ 593.431172][ T5430] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 593.447037][ T5435] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 593.457667][ T5434] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 593.471743][ T5433] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program [ 594.699609][ T5445] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 594.711237][ T5446] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program executing program [ 595.277552][ T5461] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 595.291977][ T5463] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program executing program executing program executing program executing program executing program [ 598.122152][ T5505] EXT4-fs: 8 callbacks suppressed [ 598.122871][ T5505] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 598.142775][ T5507] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 598.241896][ T5404] [ 598.244252][ T5404] ====================================================== [ 598.251285][ T5404] WARNING: possible circular locking dependency detected [ 598.258284][ T5404] 6.2.0-rc1-syzkaller-00084-gc8451c141e07 #0 Not tainted [ 598.265285][ T5404] ------------------------------------------------------ [ 598.272289][ T5404] syz-executor999/5404 is trying to acquire lock: [ 598.278685][ T5404] ffff88814bfd43f8 (&journal->j_checkpoint_mutex){+.+.}-{3:3}, at: __jbd2_log_wait_for_space+0x238/0x460 [ 598.289955][ T5404] [ 598.289955][ T5404] but task is already holding lock: [ 598.297404][ T5404] ffff8880748eac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 [ 598.308292][ T5404] [ 598.308292][ T5404] which lock already depends on the new lock. [ 598.308292][ T5404] [ 598.318783][ T5404] [ 598.318783][ T5404] the existing dependency chain (in reverse order) is: [ 598.327780][ T5404] [ 598.327780][ T5404] -> #1 (&sb->s_type->i_mutex_key#8){++++}-{3:3}: [ 598.336362][ T5404] down_read+0x9c/0x450 [ 598.341048][ T5404] ext4_bmap+0x52/0x470 [ 598.345752][ T5404] bmap+0xae/0x120 [ 598.349984][ T5404] jbd2_journal_bmap+0xac/0x180 [ 598.355344][ T5404] jbd2_journal_flush+0x853/0xc00 [ 598.360881][ T5404] __ext4_ioctl+0xb01/0x4b60 [ 598.365984][ T5404] __x64_sys_ioctl+0x197/0x210 [ 598.371249][ T5404] do_syscall_64+0x39/0xb0 [ 598.376174][ T5404] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 598.382571][ T5404] [ 598.382571][ T5404] -> #0 (&journal->j_checkpoint_mutex){+.+.}-{3:3}: [ 598.391324][ T5404] __lock_acquire+0x2a43/0x56d0 [ 598.396858][ T5404] lock_acquire+0x1e3/0x630 [ 598.401865][ T5404] mutex_lock_io_nested+0x143/0x11a0 [ 598.407659][ T5404] __jbd2_log_wait_for_space+0x238/0x460 [ 598.413797][ T5404] add_transaction_credits+0xa2d/0xb70 [ 598.419759][ T5404] start_this_handle+0x3ae/0x14a0 [ 598.425305][ T5404] jbd2__journal_start+0x39d/0x9b0 [ 598.430919][ T5404] __ext4_journal_start_sb+0x6e9/0x860 [ 598.436907][ T5404] ext4_dirty_inode+0xa5/0x130 [ 598.442178][ T5404] __mark_inode_dirty+0x247/0x11e0 [ 598.447798][ T5404] generic_update_time+0x21b/0x2b0 [ 598.453416][ T5404] file_modified_flags+0x2ce/0x320 [ 598.459034][ T5404] ext4_buffered_write_iter+0xf9/0x460 [ 598.464993][ T5404] ext4_file_write_iter+0x8bf/0x1710 [ 598.470789][ T5404] __kernel_write_iter+0x262/0x730 [ 598.476431][ T5404] dump_user_range+0x234/0x700 [ 598.481699][ T5404] elf_core_dump+0x2718/0x3590 [ 598.487143][ T5404] do_coredump+0x2764/0x3c50 [ 598.492236][ T5404] get_signal+0x1c03/0x2450 [ 598.497247][ T5404] arch_do_signal_or_restart+0x79/0x5c0 [ 598.503309][ T5404] exit_to_user_mode_prepare+0x15f/0x250 [ 598.509461][ T5404] irqentry_exit_to_user_mode+0x9/0x40 [ 598.515446][ T5404] asm_exc_general_protection+0x26/0x30 [ 598.521495][ T5404] [ 598.521495][ T5404] other info that might help us debug this: [ 598.521495][ T5404] [ 598.531704][ T5404] Possible unsafe locking scenario: [ 598.531704][ T5404] [ 598.539225][ T5404] CPU0 CPU1 [ 598.544590][ T5404] ---- ---- [ 598.550107][ T5404] lock(&sb->s_type->i_mutex_key#8); [ 598.555465][ T5404] lock(&journal->j_checkpoint_mutex); [ 598.563510][ T5404] lock(&sb->s_type->i_mutex_key#8); [ 598.571488][ T5404] lock(&journal->j_checkpoint_mutex); [ 598.577018][ T5404] [ 598.577018][ T5404] *** DEADLOCK *** [ 598.577018][ T5404] [ 598.585140][ T5404] 2 locks held by syz-executor999/5404: [ 598.590679][ T5404] #0: ffff88814bfd0460 (sb_writers#4){.+.+}-{0:0}, at: get_signal+0x1c03/0x2450 [ 598.599914][ T5404] #1: ffff8880748eac20 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_buffered_write_iter+0xb0/0x460 [ 598.611234][ T5404] [ 598.611234][ T5404] stack backtrace: [ 598.617119][ T5404] CPU: 1 PID: 5404 Comm: syz-executor999 Not tainted 6.2.0-rc1-syzkaller-00084-gc8451c141e07 #0 [ 598.627510][ T5404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 598.637548][ T5404] Call Trace: [ 598.640811][ T5404] [ 598.643729][ T5404] dump_stack_lvl+0xd1/0x138 [ 598.648309][ T5404] check_noncircular+0x25f/0x2e0 [ 598.653240][ T5404] ? print_circular_bug+0x1e0/0x1e0 [ 598.658424][ T5404] ? lock_chain_count+0x20/0x20 [ 598.663280][ T5404] ? lock_chain_count+0x20/0x20 [ 598.668115][ T5404] __lock_acquire+0x2a43/0x56d0 [ 598.672973][ T5404] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 598.678952][ T5404] lock_acquire+0x1e3/0x630 [ 598.683453][ T5404] ? __jbd2_log_wait_for_space+0x238/0x460 [ 598.689252][ T5404] ? lock_release+0x810/0x810 [ 598.693913][ T5404] ? __lock_acquire+0x166e/0x56d0 [ 598.698925][ T5404] ? __jbd2_log_wait_for_space+0x238/0x460 [ 598.704719][ T5404] mutex_lock_io_nested+0x143/0x11a0 [ 598.710019][ T5404] ? __jbd2_log_wait_for_space+0x238/0x460 [ 598.715838][ T5404] ? mutex_trylock+0x370/0x370 [ 598.720597][ T5404] ? __jbd2_log_wait_for_space+0x22e/0x460 [ 598.726390][ T5404] ? lock_downgrade+0x6e0/0x6e0 [ 598.731313][ T5404] ? lock_release+0x810/0x810 [ 598.735985][ T5404] __jbd2_log_wait_for_space+0x238/0x460 [ 598.741636][ T5404] add_transaction_credits+0xa2d/0xb70 [ 598.747084][ T5404] ? jbd2_write_access_granted+0x390/0x390 [ 598.752899][ T5404] ? irqentry_exit_to_user_mode+0x9/0x40 [ 598.758600][ T5404] ? asm_exc_general_protection+0x26/0x30 [ 598.764309][ T5404] start_this_handle+0x3ae/0x14a0 [ 598.769319][ T5404] ? stop_this_handle+0x560/0x560 [ 598.774508][ T5404] ? rcu_read_lock_sched_held+0x3e/0x70 [ 598.780224][ T5404] ? trace_kmem_cache_alloc+0x35/0x100 [ 598.785678][ T5404] ? kmem_cache_alloc+0x234/0x430 [ 598.790688][ T5404] jbd2__journal_start+0x39d/0x9b0 [ 598.795785][ T5404] __ext4_journal_start_sb+0x6e9/0x860 [ 598.801236][ T5404] ? ext4_dirty_inode+0xa5/0x130 [ 598.806171][ T5404] ? ext4_setattr+0x2be0/0x2be0 [ 598.811008][ T5404] ext4_dirty_inode+0xa5/0x130 [ 598.815780][ T5404] __mark_inode_dirty+0x247/0x11e0 [ 598.820895][ T5404] generic_update_time+0x21b/0x2b0 [ 598.826103][ T5404] file_modified_flags+0x2ce/0x320 [ 598.831204][ T5404] ? discard_new_inode+0x1a0/0x1a0 [ 598.836823][ T5404] ? down_write_killable+0x250/0x250 [ 598.842093][ T5404] ext4_buffered_write_iter+0xf9/0x460 [ 598.847537][ T5404] ext4_file_write_iter+0x8bf/0x1710 [ 598.852906][ T5404] ? do_raw_spin_lock+0x124/0x2b0 [ 598.857960][ T5404] ? rwlock_bug.part.0+0x90/0x90 [ 598.862974][ T5404] ? ext4_file_mmap+0x440/0x440 [ 598.867821][ T5404] ? _raw_spin_unlock+0x28/0x40 [ 598.872662][ T5404] ? generic_file_llseek_size+0x102/0x370 [ 598.878733][ T5404] ? ext4_llseek+0x18e/0x2f0 [ 598.883325][ T5404] __kernel_write_iter+0x262/0x730 [ 598.888424][ T5404] ? vfs_read+0x930/0x930 [ 598.892761][ T5404] ? __kernel_write+0xcb/0x110 [ 598.897527][ T5404] ? __kernel_write_iter+0x730/0x730 [ 598.902800][ T5404] dump_user_range+0x234/0x700 [ 598.907727][ T5404] ? do_coredump+0x3c50/0x3c50 [ 598.912481][ T5404] ? dump_align+0xa0/0xc0 [ 598.916826][ T5404] ? notesize+0x90/0x90 [ 598.921012][ T5404] elf_core_dump+0x2718/0x3590 [ 598.925860][ T5404] ? load_elf_phdrs+0x210/0x210 [ 598.930702][ T5404] ? kvmalloc_node+0xa2/0x1a0 [ 598.935364][ T5404] ? kasan_save_stack+0x35/0x40 [ 598.940204][ T5404] ? kasan_set_track+0x25/0x30 [ 598.944962][ T5404] ? __kasan_kmalloc+0xa5/0xb0 [ 598.949707][ T5404] ? __kmalloc_node+0x5d/0xd0 [ 598.954383][ T5404] ? __lock_acquire+0x166e/0x56d0 [ 598.959405][ T5404] ? 0xffffffffff600000 [ 598.963544][ T5404] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 598.969628][ T5404] do_coredump+0x2764/0x3c50 [ 598.974378][ T5404] ? dump_emit+0x340/0x340 [ 598.978777][ T5404] ? find_held_lock+0x2d/0x110 [ 598.983546][ T5404] ? debug_check_no_obj_freed+0x210/0x420 [ 598.989263][ T5404] ? find_held_lock+0x2d/0x110 [ 598.994014][ T5404] ? bochs_pipe_enable+0x940/0xde0 [ 598.999119][ T5404] ? _raw_spin_unlock_irq+0x23/0x50 [ 599.004306][ T5404] get_signal+0x1c03/0x2450 [ 599.008798][ T5404] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 599.014591][ T5404] ? exit_signals+0x8b0/0x8b0 [ 599.019253][ T5404] arch_do_signal_or_restart+0x79/0x5c0 [ 599.024961][ T5404] ? get_sigframe_size+0x10/0x10 [ 599.029887][ T5404] exit_to_user_mode_prepare+0x15f/0x250 [ 599.035506][ T5404] irqentry_exit_to_user_mode+0x9/0x40 [ 599.040949][ T5404] asm_exc_general_protection+0x26/0x30 [ 599.046479][ T5404] RIP: 0033:0x7fd2230859c1 [ 599.050879][ T5404] Code: c4 28 c3 e8 71 15 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 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f [ 599.070478][ T5404] RSP: 002b:0000000020000000 EFLAGS: 00010217 [ 599.076877][ T5404] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fd2230859b9 [ 599.084855][ T5404] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000020002000 [ 599.092918][ T5404] RBP: 00007fd22310a400 R08: 0000000000000000 R09: 00007fd22310a408 [ 599.100894][ T5404] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd22310a40c [ 599.108858][ T5404] R13: 00007ffc73475fbf R14: 00007fd222ff0300 R15: 0000000000022000 [ 599.116838][ T5404] executing program executing program executing program executing program [ 599.316385][ T5523] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 599.326060][ T5522] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 599.335771][ T5524] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 599.345492][ T5525] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program [ 600.683337][ T5536] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 600.693021][ T5538] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program executing program [ 601.638257][ T5553] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 601.648554][ T5555] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program executing program executing program executing program [ 603.235278][ T5583] EXT4-fs: 4 callbacks suppressed [ 603.235288][ T5583] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 603.251648][ T5584] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 603.261312][ T5585] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 603.271136][ T5586] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program [ 604.819523][ T5598] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 604.830283][ T5600] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program executing program executing program [ 605.796261][ T5615] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 605.806500][ T5616] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 605.816264][ T5617] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. [ 605.825911][ T5618] EXT4-fs (sda1): re-mounted 9ce8f422-5403-4bd0-ab21-1df2c0fc2934. Quota mode: none. executing program executing program