INFO: rcu_tasks detected stalls on tasks:
ffff888030ddbe80: .. nvcsw: 7/7 holdout: 1 idle_cpu: -1/0
task:syz.7.2582      state:R  running task     stack:23240 pid:16118 tgid:16114 ppid:8008   task_flags:0x400140 flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7463
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 __local_bh_enable_ip+0xe9/0x140 kernel/softirq.c:480
 sha256_blocks lib/crypto/x86/sha256.h:58 [inline]
 __sha256_update+0xef/0x150 lib/crypto/sha256.c:208
 sha256_update include/crypto/sha2.h:356 [inline]
 crypto_sha256_update+0x27/0x40 crypto/sha256.c:145
 crypto_shash_update include/crypto/hash.h:998 [inline]
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:233 [inline]
 ima_calc_file_hash+0x48b/0x890 security/integrity/ima/ima_crypto.c:280
 ima_collect_measurement+0x51b/0xa00 security/integrity/ima/ima_api.c:300
 process_measurement+0x1272/0x1c10 security/integrity/ima/ima_main.c:425
 ima_file_check+0xe1/0x130 security/integrity/ima/ima_main.c:685
 security_file_post_open+0xb3/0x260 security/security.c:2755
 do_open fs/namei.c:4839 [inline]
 path_openat+0x1485/0x1d60 fs/namei.c:5000
 do_file_open+0x23e/0x4a0 fs/namei.c:5029
 do_sys_openat2+0x115/0x200 fs/open.c:1417
 do_sys_open fs/open.c:1423 [inline]
 __do_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd125f9e159
RSP: 002b:00007fd126f4a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd126225fa0 RCX: 00007fd125f9e159
RDX: 0000000000000000 RSI: 0000200000000100 RDI: ffffffffffffff9c
RBP: 00007fd12603506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd126226038 R14: 00007fd126225fa0 R15: 00007ffc966f4308
 </TASK>
ffff8880789f0000: .. nvcsw: 2/2 holdout: 1 idle_cpu: -1/0
task:syz.2.2581      state:R  running task     stack:24136 pid:16103 tgid:16102 ppid:14825  task_flags:0x400140 flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x17db/0x58f0 kernel/sched/core.c:7284
 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x80 kernel/kcov.c:206
Code: 89 fb e8 23 00 00 00 48 8b 3d 64 c4 a6 0c 48 89 de 5b e9 43 82 64 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0d f8 83 cd 11 65 48 8b 15 f8 83
RSP: 0018:ffffc90004f56f20 EFLAGS: 00000202
RAX: ffffffff827544d2 RBX: ffffc90004f57030 RCX: 00000000003fffe0
RDX: ffffc90016670000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: 000000000001ffff R09: 0000000000400000
R10: 0000000000400008 R11: ffffffff82754430 R12: ffff88801b7c85da
R13: dffffc0000000000 R14: ffffc90004f56fe0 R15: ffff88801b7c8500
 proc_reg_read_iter+0x11f/0x280 fs/proc/inode.c:295
 __kernel_read+0x4ca/0x960 fs/read_write.c:532
 integrity_kernel_read+0x89/0xd0 security/integrity/iint.c:28
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:222 [inline]
 ima_calc_file_hash+0x451/0x890 security/integrity/ima/ima_crypto.c:280
 ima_collect_measurement+0x51b/0xa00 security/integrity/ima/ima_api.c:300
 process_measurement+0x1272/0x1c10 security/integrity/ima/ima_main.c:425
 ima_file_check+0xe1/0x130 security/integrity/ima/ima_main.c:685
 security_file_post_open+0xb3/0x260 security/security.c:2755
 do_open fs/namei.c:4839 [inline]
 path_openat+0x1485/0x1d60 fs/namei.c:5000
 do_file_open+0x23e/0x4a0 fs/namei.c:5029
 do_sys_openat2+0x115/0x200 fs/open.c:1417
 do_sys_open fs/open.c:1423 [inline]
 __do_sys_openat fs/open.c:1439 [inline]
 __se_sys_openat fs/open.c:1434 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f6a99e159
RSP: 002b:00007f2f6b948028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f2f6ac25fa0 RCX: 00007f2f6a99e159
RDX: 0000000000000000 RSI: 0000200000000100 RDI: ffffffffffffff9c
RBP: 00007f2f6aa3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2f6ac26038 R14: 00007f2f6ac25fa0 R15: 00007ffe4a66c638
 </TASK>