rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (1 GPs behind) idle=4c3/1/0x4000000000000000 softirq=44582/44583 fqs=35
(t=10500 jiffies g=69549 q=429)
rcu: rcu_preempt kthread starved for 10426 jiffies! g69549 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28696 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4969 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6250
schedule+0xd2/0x260 kernel/sched/core.c:6323
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1955
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2128
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 24598 Comm: syz-executor.2 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:sha256_ni_transform+0x16a/0x330 arch/x86/crypto/sha256_ni_asm.S:205
Code: cc dc 66 0f 6f c5 66 0f fe 40 60 0f 38 cb d1 66 0f 6f fd 66 0f 3a 0f fc 04 66 0f fe f7 0f 38 cd f5 66 0f 70 c0 0e 0f 38 cb ca <0f> 38 cc e5 66 0f 6f c6 66 0f fe 40 70 0f 38 cb d1 66 0f 6f fe 66
RSP: 0018:ffffc9000e8ef588 EFLAGS: 00000287
RAX: ffffffff8b1583c0 RBX: 0000000000001000 RCX: ffffc900149c4000
RDX: ffff88807e4cd000 RSI: ffff88807e4ccdc0 RDI: ffffc9000e8ef648
RBP: ffffc9000e8ef640 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8141cb04 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88807e4cc000 R14: ffffc9000e8ef648 R15: 0000000000001000
FS: 00007f3fb4ca3700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555a76708 CR3: 000000003d54c000 CR4: 0000000000350ee0
Call Trace:
sha256_base_do_update include/crypto/sha256_base.h:65 [inline]
_sha256_update arch/x86/crypto/sha256_ssse3_glue.c:62 [inline]
_sha256_update+0x1d8/0x200 arch/x86/crypto/sha256_ssse3_glue.c:46
crypto_shash_update+0xc4/0x120 crypto/shash.c:131
ima_calc_file_hash_tfm+0x2e8/0x3b0 security/integrity/ima/ima_crypto.c:495
ima_calc_file_shash security/integrity/ima/ima_crypto.c:515 [inline]
ima_calc_file_hash+0x19d/0x4b0 security/integrity/ima/ima_crypto.c:572
ima_collect_measurement+0x4ca/0x570 security/integrity/ima/ima_api.c:254
process_measurement+0xd37/0x1920 security/integrity/ima/ima_main.c:337
ima_file_mmap+0x10a/0x130 security/integrity/ima/ima_main.c:412
security_mmap_file+0x15f/0x1b0 security/security.c:1586
vm_mmap_pgoff+0xd3/0x290 mm/util.c:515
ksys_mmap_pgoff+0x269/0x620 mm/mmap.c:1624
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3fb774eae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3fb4ca3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f3fb7862020 RCX: 00007f3fb774eae9
RDX: 0000000000000004 RSI: 00007ffffffff000 RDI: 0000000020400000
RBP: 00007f3fb77a8f25 R08: ffffffffffffffff R09: 0000000008000000
R10: 0000000000059032 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff67f7f9ef R14: 00007f3fb4ca3300 R15: 0000000000022000
NMI backtrace for cpu 0
CPU: 0 PID: 24577 Comm: syz-executor.2 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3878 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2597
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__sanitizer_cov_trace_pc+0x49/0x60 kernel/kcov.c:202
Code: ff 00 74 0e 85 c9 74 35 8b 82 a4 15 00 00 85 c0 74 2b 8b 82 80 15 00 00 83 f8 02 75 20 48 8b 8a 88 15 00 00 8b 92 84 15 00 00 <48> 8b 01 48 83 c0 01 48 39 c2 76 07 48 89 34 c1 48 89 01 c3 0f 1f
RSP: 0018:ffffc9000e57f430 EFLAGS: 00000246
RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffc900147c3000
RDX: 0000000000040000 RSI: ffffffff81c9085a RDI: 0000000000000003
RBP: ffffc9000e57f490 R08: 0000000000000000 R09: ffff888082778000
R10: ffffffff81c9084d R11: 0000000000000000 R12: ffff888073fd4c80
R13: 0000000000001000 R14: ffffc9000e57f5a8 R15: 1ffff92001cafe8a
fsnotify_file include/linux/fsnotify.h:99 [inline]
fsnotify_access include/linux/fsnotify.h:256 [inline]
__kernel_read+0x5fa/0xb30 fs/read_write.c:443
integrity_kernel_read+0x7b/0xb0 security/integrity/iint.c:199
ima_calc_file_hash_tfm+0x2aa/0x3b0 security/integrity/ima/ima_crypto.c:484
ima_calc_file_shash security/integrity/ima/ima_crypto.c:515 [inline]
ima_calc_file_hash+0x19d/0x4b0 security/integrity/ima/ima_crypto.c:572
ima_collect_measurement+0x4ca/0x570 security/integrity/ima/ima_api.c:254
process_measurement+0xd37/0x1920 security/integrity/ima/ima_main.c:337
ima_file_mmap+0x10a/0x130 security/integrity/ima/ima_main.c:412
security_mmap_file+0x15f/0x1b0 security/security.c:1586
vm_mmap_pgoff+0xd3/0x290 mm/util.c:515
ksys_mmap_pgoff+0x269/0x620 mm/mmap.c:1624
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3fb774eae9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3fb4cc4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f3fb7861f60 RCX: 00007f3fb774eae9
RDX: 0000000000000004 RSI: 00007ffffffff000 RDI: 0000000020400000
RBP: 00007f3fb77a8f25 R08: ffffffffffffffff R09: 0000000008000000
R10: 0000000000059032 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff67f7f9ef R14: 00007f3fb4cc4300 R15: 0000000000022000
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 66 0f 6f c5 movdqa %xmm5,%xmm0
4: 66 0f fe 40 60 paddd 0x60(%rax),%xmm0
9: 0f 38 cb d1 sha256rnds2 %xmm0,%xmm1,%xmm2
d: 66 0f 6f fd movdqa %xmm5,%xmm7
11: 66 0f 3a 0f fc 04 palignr $0x4,%xmm4,%xmm7
17: 66 0f fe f7 paddd %xmm7,%xmm6
1b: 0f 38 cd f5 sha256msg2 %xmm5,%xmm6
1f: 66 0f 70 c0 0e pshufd $0xe,%xmm0,%xmm0
24: 0f 38 cb ca sha256rnds2 %xmm0,%xmm2,%xmm1
* 28: 0f 38 cc e5 sha256msg1 %xmm5,%xmm4 <-- trapping instruction
2c: 66 0f 6f c6 movdqa %xmm6,%xmm0
30: 66 0f fe 40 70 paddd 0x70(%rax),%xmm0
35: 0f 38 cb d1 sha256rnds2 %xmm0,%xmm1,%xmm2
39: 66 0f 6f fe movdqa %xmm6,%xmm7
3d: 66 data16