syzbot

------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
6.1.142-syzkaller #0 Not tainted
------------------------------------------------------
syz.0.49/4515 is trying to acquire lock:
ffffffff8c91ec40 (console_owner){....}-{0:0}, at: console_lock_spinning_enable kernel/printk/printk.c:1818 [inline]
ffffffff8c91ec40 (console_owner){....}-{0:0}, at: console_emit_next_record+0x82d/0xc90 kernel/printk/printk.c:2774

but task is already holding lock:
ffff8880b8f3aa98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&rq->__lock){-.-.}-{2:2}:
       _raw_spin_lock_nested+0x2e/0x40 kernel/locking/spinlock.c:378
       raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
       raw_spin_rq_lock kernel/sched/sched.h:1355 [inline]
       rq_lock kernel/sched/sched.h:1645 [inline]
       task_fork_fair+0x5c/0x350 kernel/sched/fair.c:11888
       sched_cgroup_fork+0x32c/0x3c0 kernel/sched/core.c:4685
       copy_process+0x24b8/0x4020 kernel/fork.c:2459
       kernel_clone+0x225/0x8b0 kernel/fork.c:2757
       user_mode_thread+0xda/0x130 kernel/fork.c:2833
       rest_init+0x23/0x300 init/main.c:698
       start_kernel+0x0/0x539 init/main.c:893
       start_kernel+0x490/0x539 init/main.c:1140
       secondary_startup_64_no_verify+0xcf/0xdb

-> #3 (&p->pi_lock){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xa4/0xf0 kernel/locking/spinlock.c:162
       try_to_wake_up+0x5c/0x1080 kernel/sched/core.c:4111
       __wake_up_common+0x2a4/0x4e0 kernel/sched/wait.c:107
       __wake_up_common_lock kernel/sched/wait.c:138 [inline]
       __wake_up+0x10e/0x190 kernel/sched/wait.c:160
       tty_port_default_wakeup+0x9e/0xf0 drivers/tty/tty_port.c:71
       serial8250_tx_chars+0x629/0x830 drivers/tty/serial/8250/8250_port.c:1854
       serial8250_handle_irq+0x516/0x6d0 drivers/tty/serial/8250/8250_port.c:1961
       serial8250_default_handle_irq+0xb4/0x1a0 drivers/tty/serial/8250/8250_port.c:1981
       serial8250_interrupt+0x9b/0x1c0 drivers/tty/serial/8250/8250_core.c:126
       __handle_irq_event_percpu+0x298/0xa30 kernel/irq/handle.c:158
       handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
       handle_irq_event+0x87/0x1e0 kernel/irq/handle.c:210
       handle_edge_irq+0x243/0xb20 kernel/irq/chip.c:819
       generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
       handle_irq arch/x86/kernel/irq.c:233 [inline]
       __common_interrupt+0xd7/0x1e0 arch/x86/kernel/irq.c:252
       common_interrupt+0xb0/0xd0 arch/x86/kernel/irq.c:242
       asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:682
       preempt_count arch/x86/include/asm/preempt.h:27 [inline]
       preempt_latency_stop kernel/sched/core.c:5727 [inline]
       preempt_count_sub+0x58/0x160 kernel/sched/core.c:5747
       unwind_next_frame+0x1880/0x20b0 arch/x86/kernel/unwind_orc.c:629
       arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
       stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122
       kasan_save_stack mm/kasan/common.c:45 [inline]
       kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
       kasan_save_free_info+0x2d/0x50 mm/kasan/generic.c:516
       ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:236
       kasan_slab_free include/linux/kasan.h:177 [inline]
       slab_free_hook mm/slub.c:1724 [inline]
       slab_free_freelist_hook+0x131/0x1a0 mm/slub.c:1750
       slab_free mm/slub.c:3661 [inline]
       kmem_cache_free_bulk+0x348/0x460 mm/slub.c:3779
       mt_free_bulk lib/maple_tree.c:162 [inline]
       mas_destroy+0x2489/0x2c60 lib/maple_tree.c:5859
       mas_store_prealloc+0x31a/0x400 lib/maple_tree.c:5789
       __mmap_region mm/mmap.c:2827 [inline]
       mmap_region+0x158b/0x1d30 mm/mmap.c:2912
       do_mmap+0x894/0xf30 mm/mmap.c:1432
       vm_mmap_pgoff+0x1b2/0x2b0 mm/util.c:520
       ksys_mmap_pgoff+0x516/0x6f0 mm/mmap.c:1478
       do_syscall_x64 arch/x86/entry/common.c:51 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
       entry_SYSCALL_64_after_hwframe+0x68/0xd2

-> #2 (&tty->write_wait){-...}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xa4/0xf0 kernel/locking/spinlock.c:162
       __wake_up_common_lock kernel/sched/wait.c:137 [inline]
       __wake_up+0xf4/0x190 kernel/sched/wait.c:160
       tty_port_default_wakeup+0x9e/0xf0 drivers/tty/tty_port.c:71
       serial8250_tx_chars+0x629/0x830 drivers/tty/serial/8250/8250_port.c:1854
       serial8250_handle_irq+0x516/0x6d0 drivers/tty/serial/8250/8250_port.c:1961
       serial8250_default_handle_irq+0xb4/0x1a0 drivers/tty/serial/8250/8250_port.c:1981
       serial8250_interrupt+0x9b/0x1c0 drivers/tty/serial/8250/8250_core.c:126
       __handle_irq_event_percpu+0x298/0xa30 kernel/irq/handle.c:158
       handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
       handle_irq_event+0x87/0x1e0 kernel/irq/handle.c:210
       handle_edge_irq+0x243/0xb20 kernel/irq/chip.c:819
       generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
       handle_irq arch/x86/kernel/irq.c:233 [inline]
       __common_interrupt+0xd7/0x1e0 arch/x86/kernel/irq.c:252
       common_interrupt+0xb0/0xd0 arch/x86/kernel/irq.c:242
       asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:682
       __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
       _raw_spin_unlock_irqrestore+0xa5/0x100 kernel/locking/spinlock.c:194
       spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
       uart_write+0x68a/0x910 drivers/tty/serial/serial_core.c:602
       process_output_block drivers/tty/n_tty.c:586 [inline]
       n_tty_write+0xd1a/0x11c0 drivers/tty/n_tty.c:2377
       do_tty_write drivers/tty/tty_io.c:1018 [inline]
       file_tty_write+0x4dd/0x860 drivers/tty/tty_io.c:1089
       call_write_iter include/linux/fs.h:2265 [inline]
       new_sync_write fs/read_write.c:491 [inline]
       vfs_write+0x44c/0x960 fs/read_write.c:584
       ksys_write+0x143/0x240 fs/read_write.c:637
       do_syscall_x64 arch/x86/entry/common.c:51 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
       entry_SYSCALL_64_after_hwframe+0x68/0xd2

-> #1 (&port_lock_key){-...}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xa4/0xf0 kernel/locking/spinlock.c:162
       serial8250_console_write+0x169/0x17a0 drivers/tty/serial/8250/8250_port.c:3433
       call_console_driver kernel/printk/printk.c:1977 [inline]
       console_emit_next_record+0x947/0xc90 kernel/printk/printk.c:2777
       console_flush_all kernel/printk/printk.c:-1 [inline]
       console_unlock+0x223/0x630 kernel/printk/printk.c:2906
       vprintk_emit+0x489/0x680 kernel/printk/printk.c:2303
       _printk+0xcc/0x110 kernel/printk/printk.c:2328
       register_console+0x6c6/0x9c0 kernel/printk/printk.c:3269
       univ8250_console_init+0x41/0x43 drivers/tty/serial/8250/8250_core.c:687
       console_init+0x1bc/0x78e kernel/printk/printk.c:3359
       start_kernel+0x303/0x539 init/main.c:1076
       secondary_startup_64_no_verify+0xcf/0xdb

-> #0 (console_owner){....}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3090 [inline]
       check_prevs_add kernel/locking/lockdep.c:3209 [inline]
       validate_chain kernel/locking/lockdep.c:3825 [inline]
       __lock_acquire+0x2cf8/0x7c50 kernel/locking/lockdep.c:5049
       lock_acquire+0x1b4/0x490 kernel/locking/lockdep.c:5662
       console_lock_spinning_enable kernel/printk/printk.c:1818 [inline]
       console_emit_next_record+0x84c/0xc90 kernel/printk/printk.c:2774
       console_flush_all kernel/printk/printk.c:-1 [inline]
       console_unlock+0x223/0x630 kernel/printk/printk.c:2906
       vprintk_emit+0x489/0x680 kernel/printk/printk.c:2303
       _printk+0xcc/0x110 kernel/printk/printk.c:2328
       __report_bug lib/bug.c:195 [inline]
       report_bug+0x34a/0x4f0 lib/bug.c:219
       handle_bug+0x3a/0x70 arch/x86/kernel/traps.c:324
       exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:345
       asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:606
       _update_idle_rq_clock_pelt kernel/sched/pelt.h:80 [inline]
       update_idle_rq_clock_pelt kernel/sched/pelt.h:152 [inline]
       pick_next_task_fair+0xa4a/0xbd0 kernel/sched/fair.c:7931
       __pick_next_task kernel/sched/core.c:5870 [inline]
       pick_next_task kernel/sched/core.c:5945 [inline]
       __schedule+0x6a3/0x40d0 kernel/sched/core.c:6524
       preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6873
       irqentry_exit+0x63/0x70 kernel/entry/common.c:439
       asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
       filemap_read+0x2959/0x2f80 mm/filemap.c:2799
       generic_file_read_iter+0x115/0x670 mm/filemap.c:2914
       __kernel_read+0x2dc/0x6b0 fs/read_write.c:428
       integrity_kernel_read+0x86/0xd0 security/integrity/iint.c:228
       ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline]
       ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
       ima_calc_file_hash+0x96b/0x17c0 security/integrity/ima/ima_crypto.c:573
       ima_collect_measurement+0x4b3/0xac0 security/integrity/ima/ima_api.c:293
       process_measurement+0xfae/0x1a10 security/integrity/ima/ima_main.c:351
       ima_file_check+0xc2/0x100 security/integrity/ima/ima_main.c:534
       do_open fs/namei.c:3628 [inline]
       path_openat+0x2679/0x2e70 fs/namei.c:3783
       do_filp_open+0x1c1/0x3c0 fs/namei.c:3810
       do_sys_openat2+0x142/0x490 fs/open.c:1318
       do_sys_open fs/open.c:1334 [inline]
       __do_sys_openat fs/open.c:1350 [inline]
       __se_sys_openat fs/open.c:1345 [inline]
       __x64_sys_openat+0x135/0x160 fs/open.c:1345
       do_syscall_x64 arch/x86/entry/common.c:51 [inline]
       do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
       entry_SYSCALL_64_after_hwframe+0x68/0xd2

other info that might help us debug this:

Chain exists of:
  console_owner --> &p->pi_lock --> &rq->__lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&rq->__lock);
                               lock(&p->pi_lock);
                               lock(&rq->__lock);
  lock(console_owner);

 *** DEADLOCK ***

3 locks held by syz.0.49/4515:
 #0: ffff88805d0d52d0 (&iint_mutex_key[depth]){+.+.}-{3:3}, at: process_measurement+0x64a/0x1a10 security/integrity/ima/ima_main.c:261
 #1: ffff8880b8f3aa98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:537
 #2: ffffffff8c91ed20 (console_lock){+.+.}-{0:0}, at: _printk+0xcc/0x110 kernel/printk/printk.c:2328

stack backtrace:
CPU: 1 PID: 4515 Comm: syz.0.49 Not tainted 6.1.142-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 check_noncircular+0x274/0x310 kernel/locking/lockdep.c:2170
 check_prev_add kernel/locking/lockdep.c:3090 [inline]
 check_prevs_add kernel/locking/lockdep.c:3209 [inline]
 validate_chain kernel/locking/lockdep.c:3825 [inline]
 __lock_acquire+0x2cf8/0x7c50 kernel/locking/lockdep.c:5049
 lock_acquire+0x1b4/0x490 kernel/locking/lockdep.c:5662
 console_lock_spinning_enable kernel/printk/printk.c:1818 [inline]
 console_emit_next_record+0x84c/0xc90 kernel/printk/printk.c:2774
 console_flush_all kernel/printk/printk.c:-1 [inline]
 console_unlock+0x223/0x630 kernel/printk/printk.c:2906
 vprintk_emit+0x489/0x680 kernel/printk/printk.c:2303
 _printk+0xcc/0x110 kernel/printk/printk.c:2328
 __report_bug lib/bug.c:195 [inline]
 report_bug+0x34a/0x4f0 lib/bug.c:219
 handle_bug+0x3a/0x70 arch/x86/kernel/traps.c:324
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:345
 asm_exc_invalid_op+0x16/0x20 arch/x86/include/asm/idtentry.h:606
RIP: 0010:put_prev_task kernel/sched/sched.h:2212 [inline]
RIP: 0010:pick_next_task_fair+0xa4a/0xbd0 kernel/sched/fair.c:7883
Code: 00 00 49 81 c5 98 0a 00 00 4c 89 e8 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 ef e8 81 87 77 00 49 89 5d 00 31 db e9 3d fb ff ff <0f> 0b e9 6f fb ff ff 0f 0b e9 ca fd ff ff 0f 0b eb 88 0f 0b e9 de
RSP: 0018:ffffc900036b65b8 EFLAGS: 00010012
RAX: 1ffff110171e7693 RBX: ffff8880b8f3b498 RCX: 1ffff110171e756a
RDX: ffffc900036b6740 RSI: ffff88802fd61dbf RDI: ffff8880b8f3aa80
RBP: ffff88802fd6204f R08: ffffffff8f7ce048 R09: ffffffff8f7ce058
R10: ffffffff8f7ce050 R11: ffffffff8f7ce043 R12: ffff8880b8f3aa80
R13: ffff8880b8f3ab40 R14: dffffc0000000000 R15: ffff88802fd61dbf
 __pick_next_task kernel/sched/core.c:5870 [inline]
 pick_next_task kernel/sched/core.c:5945 [inline]
 __schedule+0x6a3/0x40d0 kernel/sched/core.c:6524
 preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6873
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:folio_test_uptodate include/linux/page-flags.h:729 [inline]
RIP: 0010:filemap_get_pages mm/filemap.c:2685 [inline]
RIP: 0010:filemap_read+0x2959/0x2f80 mm/filemap.c:2759
Code: fd bd d4 ff c7 44 24 08 f2 ff ff ff e9 f0 f9 ff ff e8 eb bd d4 ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24 10 e9 80 fa ff ff <e8> d2 bd d4 ff 45 31 f6 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24
RSP: 0018:ffffc900036b6920 EFLAGS: 00000202
RAX: ffffffff81abf8a2 RBX: ffffea0001672188 RCX: ffff88802fd61dc0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffffc900036b6c30 R08: dffffc0000000000 R09: fffff940002ce431
R10: fffff940002ce431 R11: 1ffffd40002ce430 R12: ffffea0001672180
R13: 1ffffd40002ce431 R14: 0000000000000004 R15: 0000000000000000
 generic_file_read_iter+0x115/0x670 mm/filemap.c:2914
 __kernel_read+0x2dc/0x6b0 fs/read_write.c:428
 integrity_kernel_read+0x86/0xd0 security/integrity/iint.c:228
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline]
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
 ima_calc_file_hash+0x96b/0x17c0 security/integrity/ima/ima_crypto.c:573
 ima_collect_measurement+0x4b3/0xac0 security/integrity/ima/ima_api.c:293
 process_measurement+0xfae/0x1a10 security/integrity/ima/ima_main.c:351
 ima_file_check+0xc2/0x100 security/integrity/ima/ima_main.c:534
 do_open fs/namei.c:3628 [inline]
 path_openat+0x2679/0x2e70 fs/namei.c:3783
 do_filp_open+0x1c1/0x3c0 fs/namei.c:3810
 do_sys_openat2+0x142/0x490 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f180118e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1801f87038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f18013b6080 RCX: 00007f180118e929
RDX: 0000000000143042 RSI: 00002000000000c0 RDI: ffffffffffffff9c
RBP: 00007f1801210b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f18013b6080 R15: 00007fff909fd7b8
 </TASK>
WARNING: CPU: 1 PID: 4515 at kernel/sched/sched.h:2212 _update_idle_rq_clock_pelt kernel/sched/pelt.h:80 [inline]
WARNING: CPU: 1 PID: 4515 at kernel/sched/sched.h:2212 update_idle_rq_clock_pelt kernel/sched/pelt.h:152 [inline]
WARNING: CPU: 1 PID: 4515 at kernel/sched/sched.h:2212 pick_next_task_fair+0xa4a/0xbd0 kernel/sched/fair.c:7931
Modules linked in:
CPU: 1 PID: 4515 Comm: syz.0.49 Not tainted 6.1.142-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:put_prev_task kernel/sched/sched.h:2212 [inline]
RIP: 0010:pick_next_task_fair+0xa4a/0xbd0 kernel/sched/fair.c:7883
Code: 00 00 49 81 c5 98 0a 00 00 4c 89 e8 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 ef e8 81 87 77 00 49 89 5d 00 31 db e9 3d fb ff ff <0f> 0b e9 6f fb ff ff 0f 0b e9 ca fd ff ff 0f 0b eb 88 0f 0b e9 de
RSP: 0018:ffffc900036b65b8 EFLAGS: 00010012
RAX: 1ffff110171e7693 RBX: ffff8880b8f3b498 RCX: 1ffff110171e756a
RDX: ffffc900036b6740 RSI: ffff88802fd61dbf RDI: ffff8880b8f3aa80
RBP: ffff88802fd6204f R08: ffffffff8f7ce048 R09: ffffffff8f7ce058
R10: ffffffff8f7ce050 R11: ffffffff8f7ce043 R12: ffff8880b8f3aa80
R13: ffff8880b8f3ab40 R14: dffffc0000000000 R15: ffff88802fd61dbf
FS:  00007f1801f876c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1801f86f98 CR3: 0000000019ec5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __pick_next_task kernel/sched/core.c:5870 [inline]
 pick_next_task kernel/sched/core.c:5945 [inline]
 __schedule+0x6a3/0x40d0 kernel/sched/core.c:6524
 preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6873
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:folio_test_uptodate include/linux/page-flags.h:729 [inline]
RIP: 0010:filemap_get_pages mm/filemap.c:2685 [inline]
RIP: 0010:filemap_read+0x2959/0x2f80 mm/filemap.c:2759
Code: fd bd d4 ff c7 44 24 08 f2 ff ff ff e9 f0 f9 ff ff e8 eb bd d4 ff 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24 10 e9 80 fa ff ff <e8> d2 bd d4 ff 45 31 f6 49 bc 00 00 00 00 00 fc ff df 4c 8b 7c 24
RSP: 0018:ffffc900036b6920 EFLAGS: 00000202
RAX: ffffffff81abf8a2 RBX: ffffea0001672188 RCX: ffff88802fd61dc0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000
RBP: ffffc900036b6c30 R08: dffffc0000000000 R09: fffff940002ce431
R10: fffff940002ce431 R11: 1ffffd40002ce430 R12: ffffea0001672180
R13: 1ffffd40002ce431 R14: 0000000000000004 R15: 0000000000000000
 generic_file_read_iter+0x115/0x670 mm/filemap.c:2914
 __kernel_read+0x2dc/0x6b0 fs/read_write.c:428
 integrity_kernel_read+0x86/0xd0 security/integrity/iint.c:228
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline]
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
 ima_calc_file_hash+0x96b/0x17c0 security/integrity/ima/ima_crypto.c:573
 ima_collect_measurement+0x4b3/0xac0 security/integrity/ima/ima_api.c:293
 process_measurement+0xfae/0x1a10 security/integrity/ima/ima_main.c:351
 ima_file_check+0xc2/0x100 security/integrity/ima/ima_main.c:534
 do_open fs/namei.c:3628 [inline]
 path_openat+0x2679/0x2e70 fs/namei.c:3783
 do_filp_open+0x1c1/0x3c0 fs/namei.c:3810
 do_sys_openat2+0x142/0x490 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f180118e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1801f87038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f18013b6080 RCX: 00007f180118e929
RDX: 0000000000143042 RSI: 00002000000000c0 RDI: ffffffffffffff9c
RBP: 00007f1801210b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f18013b6080 R15: 00007fff909fd7b8
 </TASK>
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	c7 44 24 08 f2 ff ff 	movl   $0xfffffff2,0x8(%rsp)
   7:	ff
   8:	e9 f0 f9 ff ff       	jmp    0xfffff9fd
   d:	e8 eb bd d4 ff       	call   0xffd4bdfd
  12:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  19:	fc ff df
  1c:	4c 8b 7c 24 10       	mov    0x10(%rsp),%r15
  21:	e9 80 fa ff ff       	jmp    0xfffffaa6
* 26:	e8 d2 bd d4 ff       	call   0xffd4bdfd <-- trapping instruction
  2b:	45 31 f6             	xor    %r14d,%r14d
  2e:	49 bc 00 00 00 00 00 	movabs $0xdffffc0000000000,%r12
  35:	fc ff df
  38:	4c                   	rex.WR
  39:	8b                   	.byte 0x8b
  3a:	7c 24                	jl     0x60