------------[ cut here ]------------ ====================================================== WARNING: possible circular locking dependency detected 6.7.0-rc3-next-20231201-syzkaller #0 Not tainted ------------------------------------------------------ jbd2/sda1-8/4475 is trying to acquire lock: ffffffff8d19b138 ((console_sem).lock){-...}-{2:2}, at: down_trylock+0x12/0x70 kernel/locking/semaphore.c:139 but task is already holding lock: ffffffff8dc76ab8 (pool_rwlock){----}-{2:2}, at: stack_depot_put lib/stackdepot.c:621 [inline] ffffffff8dc76ab8 (pool_rwlock){----}-{2:2}, at: stack_depot_put+0x24/0x110 lib/stackdepot.c:613 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (pool_rwlock){----}-{2:2}: __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0x46/0x90 kernel/locking/spinlock.c:236 stack_depot_save_flags+0x169/0x740 lib/stackdepot.c:508 kasan_save_stack+0x42/0x50 mm/kasan/common.c:48 __kasan_record_aux_stack+0xc2/0xd0 mm/kasan/generic.c:517 task_work_add+0x88/0x2a0 kernel/task_work.c:48 task_tick_numa kernel/sched/fair.c:3512 [inline] task_tick_fair+0x5a5/0xc30 kernel/sched/fair.c:12599 scheduler_tick+0x210/0x650 kernel/sched/core.c:5674 update_process_times+0x19e/0x220 kernel/time/timer.c:2076 tick_sched_handle+0x8e/0x170 kernel/time/tick-sched.c:255 tick_nohz_highres_handler+0xe9/0x110 kernel/time/tick-sched.c:1516 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x654/0xc20 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline] __sysvec_apic_timer_interrupt+0x10c/0x410 arch/x86/kernel/apic/apic.c:1082 sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 check_kcov_mode kernel/kcov.c:173 [inline] __sanitizer_cov_trace_pc+0x23/0x60 kernel/kcov.c:207 on_stack arch/x86/include/asm/stacktrace.h:60 [inline] unwind_next_frame+0x1202/0x2390 arch/x86/kernel/unwind_orc.c:665 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_set_track+0x24/0x30 mm/kasan/common.c:61 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:556 ____kasan_slab_free mm/kasan/common.c:237 [inline] ____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:201 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:2087 [inline] slab_free_freelist_hook+0x86/0x1f0 mm/slub.c:2113 slab_free mm/slub.c:4279 [inline] kmem_cache_free+0xf8/0x3b0 mm/slub.c:4330 bvec_free+0xe0/0x120 block/bio.c:170 bio_free+0xaa/0x130 block/bio.c:237 bio_put_percpu_cache block/bio.c:767 [inline] bio_put+0x2fb/0x650 block/bio.c:806 __read_end_io+0x1b9/0x3e0 fs/ext4/readpage.c:77 mpage_end_io+0x7d/0xe0 fs/ext4/readpage.c:171 bio_endio+0x5a5/0x6b0 block/bio.c:1603 req_bio_endio block/blk-mq.c:788 [inline] blk_update_request+0x685/0x1700 block/blk-mq.c:933 scsi_end_request+0x7b/0x9a0 drivers/scsi/scsi_lib.c:537 scsi_io_completion+0x178/0x14c0 drivers/scsi/scsi_lib.c:975 scsi_complete+0x124/0x250 drivers/scsi/scsi_lib.c:1437 blk_complete_reqs+0xb2/0xf0 block/blk-mq.c:1131 __do_softirq+0x216/0x8d5 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb5/0x120 kernel/softirq.c:644 common_interrupt+0xb0/0xd0 arch/x86/kernel/irq.c:247 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:636 __sanitizer_cov_trace_pc+0x58/0x60 kernel/kcov.c:223 orc_find arch/x86/kernel/unwind_orc.c:217 [inline] unwind_next_frame+0x23f/0x2390 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 save_stack+0x15e/0x1f0 mm/page_owner.c:130 __set_page_owner+0x1f/0x60 mm/page_owner.c:196 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2d0/0x350 mm/page_alloc.c:1540 prep_new_page mm/page_alloc.c:1547 [inline] get_page_from_freelist+0xa19/0x3740 mm/page_alloc.c:3355 __alloc_pages+0x22e/0x2410 mm/page_alloc.c:4611 alloc_pages_mpol+0x258/0x5f0 mm/mempolicy.c:2133 folio_alloc+0x1e/0xe0 mm/mempolicy.c:2211 filemap_alloc_folio+0x3b6/0x490 mm/filemap.c:974 page_cache_ra_unbounded+0x1aa/0x5e0 mm/readahead.c:247 do_page_cache_ra mm/readahead.c:299 [inline] page_cache_ra_order+0x72b/0xa80 mm/readahead.c:546 ondemand_readahead+0x493/0x1130 mm/readahead.c:668 page_cache_async_ra mm/readahead.c:717 [inline] page_cache_async_ra+0x123/0x150 mm/readahead.c:699 filemap_readahead mm/filemap.c:2472 [inline] filemap_get_pages+0x359/0x1830 mm/filemap.c:2513 filemap_read+0x39b/0xcf0 mm/filemap.c:2593 generic_file_read_iter+0x346/0x450 mm/filemap.c:2772 ext4_file_read_iter+0x1dc/0x6c0 fs/ext4/file.c:147 __kernel_read+0x300/0x870 fs/read_write.c:428 integrity_kernel_read+0x7f/0xb0 security/integrity/iint.c:221 ima_calc_file_hash_tfm+0x2c5/0x3d0 security/integrity/ima/ima_crypto.c:485 ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline] ima_calc_file_hash+0x1c6/0x4a0 security/integrity/ima/ima_crypto.c:573 ima_collect_measurement+0x85e/0xa20 security/integrity/ima/ima_api.c:290 process_measurement+0xe92/0x2260 security/integrity/ima/ima_main.c:359 ima_file_mmap+0x1ad/0x1d0 security/integrity/ima/ima_main.c:449 security_mmap_file+0x186/0x1d0 security/security.c:2788 vm_mmap_pgoff+0xdb/0x3c0 mm/util.c:552 vm_mmap+0x8e/0xc0 mm/util.c:575 elf_map fs/binfmt_elf.c:385 [inline] elf_load+0x196/0x870 fs/binfmt_elf.c:408 load_elf_interp fs/binfmt_elf.c:675 [inline] load_elf_binary+0x3436/0x4e10 fs/binfmt_elf.c:1200 search_binary_handler fs/exec.c:1736 [inline] exec_binprm fs/exec.c:1778 [inline] bprm_execve fs/exec.c:1853 [inline] bprm_execve+0x7ef/0x1a80 fs/exec.c:1809 kernel_execve+0x3d7/0x4e0 fs/exec.c:2021 try_to_run_init_process init/main.c:1364 [inline] kernel_init+0x137/0x2a0 init/main.c:1497 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 -> #2 (&rq->__lock){-.-.}-{2:2}: _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378 raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:558 raw_spin_rq_lock kernel/sched/sched.h:1385 [inline] rq_lock kernel/sched/sched.h:1699 [inline] task_fork_fair+0x70/0x240 kernel/sched/fair.c:12619 sched_cgroup_fork+0x3cf/0x510 kernel/sched/core.c:4835 copy_process+0x6a38/0x9770 kernel/fork.c:2601 kernel_clone+0xfd/0x940 kernel/fork.c:2899 user_mode_thread+0xb4/0xf0 kernel/fork.c:2977 rest_init+0x27/0x2b0 init/main.c:695 arch_call_rest_init+0x13/0x30 init/main.c:827 start_kernel+0x39e/0x480 init/main.c:1072 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:555 x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:536 secondary_startup_64_no_verify+0x166/0x16b -> #1 (&p->pi_lock){-.-.}-{2:2}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162 class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:522 [inline] try_to_wake_up+0x9a/0x13d0 kernel/sched/core.c:4252 up+0x79/0xb0 kernel/locking/semaphore.c:191 __up_console_sem kernel/printk/printk.c:340 [inline] __console_unlock kernel/printk/printk.c:2706 [inline] console_unlock+0x1cf/0x260 kernel/printk/printk.c:3038 vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2303 dev_vprintk_emit drivers/base/core.c:4850 [inline] dev_printk_emit+0xfb/0x140 drivers/base/core.c:4861 __dev_printk+0xf5/0x270 drivers/base/core.c:4873 _dev_notice+0xe5/0x120 drivers/base/core.c:4918 usb_parse_configuration drivers/usb/core/config.c:757 [inline] usb_get_configuration+0x1008/0x5640 drivers/usb/core/config.c:944 usb_enumerate_device drivers/usb/core/hub.c:2414 [inline] usb_new_device+0x1173/0x19f0 drivers/usb/core/hub.c:2552 hub_port_connect drivers/usb/core/hub.c:5451 [inline] hub_port_connect_change drivers/usb/core/hub.c:5591 [inline] port_event drivers/usb/core/hub.c:5751 [inline] hub_event+0x2dac/0x4e10 drivers/usb/core/hub.c:5833 process_one_work+0x8a4/0x15f0 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 -> #0 ((console_sem).lock){-...}-{2:2}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x246e/0x3b30 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x530 kernel/locking/lockdep.c:5719 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162 down_trylock+0x12/0x70 kernel/locking/semaphore.c:139 __down_trylock_console_sem+0x40/0x140 kernel/printk/printk.c:323 console_trylock+0x73/0x130 kernel/printk/printk.c:2659 console_trylock_spinning kernel/printk/printk.c:1923 [inline] vprintk_emit+0x162/0x5f0 kernel/printk/printk.c:2302 vprintk+0x7b/0x90 kernel/printk/printk_safe.c:45 _printk+0xc8/0x100 kernel/printk/printk.c:2328 __warn_printk+0x158/0x350 kernel/panic.c:721 refcount_warn_saturate+0x149/0x210 lib/refcount.c:28 __refcount_sub_and_test include/linux/refcount.h:283 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] stack_depot_put lib/stackdepot.c:627 [inline] stack_depot_put+0xe4/0x110 lib/stackdepot.c:613 __kasan_record_aux_stack+0xb3/0xd0 mm/kasan/generic.c:515 insert_work+0x38/0x230 kernel/workqueue.c:1653 __queue_work+0x633/0x11d0 kernel/workqueue.c:1802 __queue_delayed_work+0x1bf/0x270 kernel/workqueue.c:1953 mod_delayed_work_on+0xcc/0x1a0 kernel/workqueue.c:2027 kblockd_mod_delayed_work_on+0x29/0x40 block/blk-core.c:1038 blk_kick_flush block/blk-flush.c:348 [inline] blk_flush_complete_seq+0xa66/0x10c0 block/blk-flush.c:213 blk_insert_flush+0x349/0x6d0 block/blk-flush.c:456 blk_mq_submit_bio+0x16cd/0x2150 block/blk-mq.c:2992 __submit_bio+0xfd/0x310 block/blk-core.c:599 __submit_bio_noacct_mq block/blk-core.c:678 [inline] submit_bio_noacct_nocheck+0x852/0xbb0 block/blk-core.c:707 submit_bio_noacct+0x87b/0x1b90 block/blk-core.c:801 journal_submit_commit_record+0x73b/0xab0 fs/jbd2/commit.c:156 jbd2_journal_commit_transaction+0x39fd/0x63c0 fs/jbd2/commit.c:880 kjournald2+0x1f8/0x8f0 fs/jbd2/journal.c:201 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 other info that might help us debug this: Chain exists of: (console_sem).lock --> &rq->__lock --> pool_rwlock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(pool_rwlock); lock(&rq->__lock); lock(pool_rwlock); lock((console_sem).lock); *** DEADLOCK *** 4 locks held by jbd2/sda1-8/4475: #0: ffff888018f76118 (&fq->mq_flush_lock){..-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline] #0: ffff888018f76118 (&fq->mq_flush_lock){..-.}-{2:2}, at: blk_insert_flush+0x337/0x6d0 block/blk-flush.c:455 #1: ffffffff8d1ad6e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline] #1: ffffffff8d1ad6e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline] #1: ffffffff8d1ad6e0 (rcu_read_lock){....}-{1:2}, at: __queue_work+0xf2/0x11d0 kernel/workqueue.c:1730 #2: ffff8880b993c2f8 (&pool->lock){-.-.}-{2:2}, at: __queue_work+0x39e/0x11d0 kernel/workqueue.c:1766 #3: ffffffff8dc76ab8 (pool_rwlock){----}-{2:2}, at: stack_depot_put lib/stackdepot.c:621 [inline] #3: ffffffff8dc76ab8 (pool_rwlock){----}-{2:2}, at: stack_depot_put+0x24/0x110 lib/stackdepot.c:613 stack backtrace: CPU: 1 PID: 4475 Comm: jbd2/sda1-8 Not tainted 6.7.0-rc3-next-20231201-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 check_noncircular+0x316/0x400 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3869 [inline] __lock_acquire+0x246e/0x3b30 kernel/locking/lockdep.c:5137 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x530 kernel/locking/lockdep.c:5719 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162 down_trylock+0x12/0x70 kernel/locking/semaphore.c:139 __down_trylock_console_sem+0x40/0x140 kernel/printk/printk.c:323 console_trylock+0x73/0x130 kernel/printk/printk.c:2659 console_trylock_spinning kernel/printk/printk.c:1923 [inline] vprintk_emit+0x162/0x5f0 kernel/printk/printk.c:2302 vprintk+0x7b/0x90 kernel/printk/printk_safe.c:45 _printk+0xc8/0x100 kernel/printk/printk.c:2328 __warn_printk+0x158/0x350 kernel/panic.c:721 refcount_warn_saturate+0x149/0x210 lib/refcount.c:28 __refcount_sub_and_test include/linux/refcount.h:283 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] stack_depot_put lib/stackdepot.c:627 [inline] stack_depot_put+0xe4/0x110 lib/stackdepot.c:613 __kasan_record_aux_stack+0xb3/0xd0 mm/kasan/generic.c:515 insert_work+0x38/0x230 kernel/workqueue.c:1653 __queue_work+0x633/0x11d0 kernel/workqueue.c:1802 __queue_delayed_work+0x1bf/0x270 kernel/workqueue.c:1953 mod_delayed_work_on+0xcc/0x1a0 kernel/workqueue.c:2027 kblockd_mod_delayed_work_on+0x29/0x40 block/blk-core.c:1038 blk_kick_flush block/blk-flush.c:348 [inline] blk_flush_complete_seq+0xa66/0x10c0 block/blk-flush.c:213 blk_insert_flush+0x349/0x6d0 block/blk-flush.c:456 blk_mq_submit_bio+0x16cd/0x2150 block/blk-mq.c:2992 __submit_bio+0xfd/0x310 block/blk-core.c:599 __submit_bio_noacct_mq block/blk-core.c:678 [inline] submit_bio_noacct_nocheck+0x852/0xbb0 block/blk-core.c:707 submit_bio_noacct+0x87b/0x1b90 block/blk-core.c:801 journal_submit_commit_record+0x73b/0xab0 fs/jbd2/commit.c:156 jbd2_journal_commit_transaction+0x39fd/0x63c0 fs/jbd2/commit.c:880 kjournald2+0x1f8/0x8f0 fs/jbd2/journal.c:201 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 refcount_t: underflow; use-after-free. WARNING: CPU: 1 PID: 4475 at lib/refcount.c:28 refcount_warn_saturate+0x14a/0x210 lib/refcount.c:28 Modules linked in: CPU: 1 PID: 4475 Comm: jbd2/sda1-8 Not tainted 6.7.0-rc3-next-20231201-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:refcount_warn_saturate+0x14a/0x210 lib/refcount.c:28 Code: ff 89 de e8 c8 60 23 fd 84 db 0f 85 66 ff ff ff e8 8b 65 23 fd c6 05 31 e6 be 0a 01 90 48 c7 c7 20 b9 2e 8b e8 e7 53 e9 fc 90 <0f> 0b 90 90 e9 43 ff ff ff e8 68 65 23 fd 0f b6 1d 0c e6 be 0a 31 RSP: 0018:ffffc9000da0f300 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814e15d9 RDX: ffff88802b7e9dc0 RSI: ffffffff814e15e6 RDI: 0000000000000001 RBP: ffff88814bb04efc R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880176ca8c0 R13: ffff888018691800 R14: ffff88801869185c R15: ffff8880b993c340 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555682938 CR3: 00000000298f5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __refcount_sub_and_test include/linux/refcount.h:283 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] stack_depot_put lib/stackdepot.c:627 [inline] stack_depot_put+0xe4/0x110 lib/stackdepot.c:613 __kasan_record_aux_stack+0xb3/0xd0 mm/kasan/generic.c:515 insert_work+0x38/0x230 kernel/workqueue.c:1653 __queue_work+0x633/0x11d0 kernel/workqueue.c:1802 __queue_delayed_work+0x1bf/0x270 kernel/workqueue.c:1953 mod_delayed_work_on+0xcc/0x1a0 kernel/workqueue.c:2027 kblockd_mod_delayed_work_on+0x29/0x40 block/blk-core.c:1038 blk_kick_flush block/blk-flush.c:348 [inline] blk_flush_complete_seq+0xa66/0x10c0 block/blk-flush.c:213 blk_insert_flush+0x349/0x6d0 block/blk-flush.c:456 blk_mq_submit_bio+0x16cd/0x2150 block/blk-mq.c:2992 __submit_bio+0xfd/0x310 block/blk-core.c:599 __submit_bio_noacct_mq block/blk-core.c:678 [inline] submit_bio_noacct_nocheck+0x852/0xbb0 block/blk-core.c:707 submit_bio_noacct+0x87b/0x1b90 block/blk-core.c:801 journal_submit_commit_record+0x73b/0xab0 fs/jbd2/commit.c:156 jbd2_journal_commit_transaction+0x39fd/0x63c0 fs/jbd2/commit.c:880 kjournald2+0x1f8/0x8f0 fs/jbd2/journal.c:201 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242