[v6.1] INFO: rcu detected stall in mrp_join_timer (3)
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syzbot
4:15 AM (18 hours ago) 4:15 AM
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 4931e0e1673d Linux 6.1.170
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=146f81ce580000
kernel config: https://syzkaller.appspot.com/x/.config?x=f0605c5af04d7603
dashboard link: https://syzkaller.appspot.com/bug?extid=cb6d0aaf7ecff4d68410
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/cd62baf6f839/disk-4931e0e1.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/28b9d34fdc6c/vmlinux-4931e0e1.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5056ec0ca104/bzImage-4931e0e1.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+cb6d0a...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2660 jiffies s: 49793 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 16717 Comm: syz.0.4023 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:check_kcov_mode kernel/kcov.c:182 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:245 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x1b/0x80 kernel/kcov.c:320
Code: 7c 11 10 48 89 74 11 18 48 89 44 11 20 c3 90 48 8b 04 24 65 48 8b 0d 04 f6 7f 7e 65 8b 15 05 f6 7f 7e 81 e2 00 01 ff 00 74 11 <81> fa 00 01 00 00 75 57 83 b9 1c 16 00 00 00 74 4e 8b 91 f8 15 00
RSP: 0018:ffffc900001dff78 EFLAGS: 00000006
RAX: ffffffff8100fdbd RBX: 1ffff9200003c021 RCX: ffff88805c658000
RDX: 0000000000000100 RSI: ffffffff8171c074 RDI: 0000000000000000
RBP: ffffc900001e00b0 R08: ffffc900001e0aa0 R09: ffffc900001e0030
R10: dffffc0000000000 R11: fffff5200003c008 R12: ffffc900001e010c
R13: ffffc900001dffe0 R14: ffffffff8171c074 R15: 1ffff9200003bff8
FS: 00007f87344186c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000076f7a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff3 DR7: 0000000000000600
Call Trace:
<IRQ>
perf_callchain_kernel+0x30d/0x680 arch/x86/events/core.c:2807
get_perf_callchain+0x236/0x490 kernel/events/callchain.c:204
perf_callchain kernel/events/core.c:7512 [inline]
perf_prepare_sample+0x399/0x2020 kernel/events/core.c:7545
__perf_event_output kernel/events/core.c:7730 [inline]
perf_event_output_forward+0x197/0x2f0 kernel/events/core.c:7750
__perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
perf_swevent_overflow kernel/events/core.c:9579 [inline]
perf_swevent_event+0x315/0x570 kernel/events/core.c:9630
perf_tp_event+0x3e7/0xc30 kernel/events/core.c:10064
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032
perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xbc/0x120 kernel/locking/spinlock.c:194
Code: c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 41 c6 04 07 f8 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 2f ed 20 f7 65 8b 05 80 70 ca 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc900001e09a0 EFLAGS: 00000206
RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: b001b454cc0f8300
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: 0000000000000001
RBP: ffffc900001e0a20 R08: ffffffff90af9327 R09: 1ffffffff215f264
R10: dffffc0000000000 R11: fffffbfff215f265 R12: dffffc0000000000
R13: ffff88806400d230 R14: ffffffff96e52260 R15: 1ffff9200003c134
debug_object_assert_init+0x1ed/0x2f0 lib/debugobjects.c:889
debug_timer_assert_init kernel/time/timer.c:792 [inline]
debug_assert_init kernel/time/timer.c:837 [inline]
__mod_timer+0x54/0xd00 kernel/time/timer.c:1020
mrp_join_timer_arm net/802/mrp.c:596 [inline]
mrp_join_timer+0x13b/0x170 net/802/mrp.c:611
call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x53e/0x800 kernel/time/timer.c:2023
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6874
Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 15 64 22 f7 e8 10 58 52 f7 fb bf 01 00 00 00 <e8> 75 b9 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc9000ca9fb80 EFLAGS: 00000282
RAX: b001b454cc0f8300 RBX: 0000000000000000 RCX: b001b454cc0f8300
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: 0000000000000001
RBP: ffffc9000ca9fc20 R08: ffff8880b8f3580b R09: 1ffff110171e6b01
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92001953f70
irqentry_exit+0x63/0x70 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__ref_is_percpu include/linux/percpu-refcount.h:174 [inline]
RIP: 0010:percpu_ref_tryget_many include/linux/percpu-refcount.h:243 [inline]
RIP: 0010:percpu_ref_tryget+0x8e/0x180 include/linux/percpu-refcount.h:266
Code: 61 98 8a be 19 03 00 00 48 c7 c2 40 61 98 8a e8 08 1a 8a ff 49 bf 00 00 00 00 00 fc ff df 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 <74> 08 4c 89 f7 e8 48 ad f8 ff 49 8b 06 a8 03 75 67 65 48 ff 00 40
RSP: 0018:ffffc9000ca9fce8 EFLAGS: 00000246
RAX: 1ffff110048f3c00 RBX: ffffffff81dad3c5 RCX: b001b454cc0f8300
RDX: 0000000000000000 RSI: ffffffff8adf1300 RDI: ffffffff8adf12c0
RBP: 0000000000000cc0 R08: dffffc0000000000 R09: 1ffffffff215f248
R10: dffffc0000000000 R11: fffffbfff215f249 R12: ffff88814011c860
R13: 0000000000000580 R14: ffff88802479e000 R15: dffffc0000000000
obj_cgroup_tryget include/linux/memcontrol.h:779 [inline]
__get_obj_cgroup_from_memcg+0x70/0xe0 mm/memcontrol.c:3004
get_obj_cgroup_from_current+0x16b/0x280 mm/memcontrol.c:3024
memcg_slab_pre_alloc_hook mm/slab.h:485 [inline]
slab_pre_alloc_hook+0x91/0x310 mm/slab.h:715
slab_alloc_node mm/slub.c:3279 [inline]
slab_alloc mm/slub.c:3367 [inline]
__kmem_cache_alloc_lru mm/slub.c:3374 [inline]
kmem_cache_alloc_lru+0x49/0x2e0 mm/slub.c:3390
alloc_inode_sb include/linux/fs.h:3245 [inline]
sock_alloc_inode+0x24/0xc0 net/socket.c:306
alloc_inode fs/inode.c:261 [inline]
new_inode_pseudo+0x5f/0x1c0 fs/inode.c:1063
sock_alloc net/socket.c:631 [inline]
__sock_create+0x129/0x940 net/socket.c:1513
sock_create net/socket.c:1605 [inline]
__sys_socket_create net/socket.c:1642 [inline]
__sys_socket+0xc4/0x190 net/socket.c:1670
__do_sys_socket net/socket.c:1683 [inline]
__se_sys_socket net/socket.c:1681 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1681
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f873359cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8734418028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f8733815fa0 RCX: 00007f873359cdd9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000000a
RBP: 00007f8733632d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8733816038 R14: 00007f8733815fa0 R15: 00007fff2e7b9c08
</TASK>
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 4931e0e1673d Linux 6.1.170
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=146f81ce580000
kernel config: https://syzkaller.appspot.com/x/.config?x=f0605c5af04d7603
dashboard link: https://syzkaller.appspot.com/bug?extid=cb6d0aaf7ecff4d68410
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/cd62baf6f839/disk-4931e0e1.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/28b9d34fdc6c/vmlinux-4931e0e1.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5056ec0ca104/bzImage-4931e0e1.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+cb6d0a...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2660 jiffies s: 49793 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 16717 Comm: syz.0.4023 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:check_kcov_mode kernel/kcov.c:182 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:245 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x1b/0x80 kernel/kcov.c:320
Code: 7c 11 10 48 89 74 11 18 48 89 44 11 20 c3 90 48 8b 04 24 65 48 8b 0d 04 f6 7f 7e 65 8b 15 05 f6 7f 7e 81 e2 00 01 ff 00 74 11 <81> fa 00 01 00 00 75 57 83 b9 1c 16 00 00 00 74 4e 8b 91 f8 15 00
RSP: 0018:ffffc900001dff78 EFLAGS: 00000006
RAX: ffffffff8100fdbd RBX: 1ffff9200003c021 RCX: ffff88805c658000
RDX: 0000000000000100 RSI: ffffffff8171c074 RDI: 0000000000000000
RBP: ffffc900001e00b0 R08: ffffc900001e0aa0 R09: ffffc900001e0030
R10: dffffc0000000000 R11: fffff5200003c008 R12: ffffc900001e010c
R13: ffffc900001dffe0 R14: ffffffff8171c074 R15: 1ffff9200003bff8
FS: 00007f87344186c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000076f7a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff3 DR7: 0000000000000600
Call Trace:
<IRQ>
perf_callchain_kernel+0x30d/0x680 arch/x86/events/core.c:2807
get_perf_callchain+0x236/0x490 kernel/events/callchain.c:204
perf_callchain kernel/events/core.c:7512 [inline]
perf_prepare_sample+0x399/0x2020 kernel/events/core.c:7545
__perf_event_output kernel/events/core.c:7730 [inline]
perf_event_output_forward+0x197/0x2f0 kernel/events/core.c:7750
__perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
perf_swevent_overflow kernel/events/core.c:9579 [inline]
perf_swevent_event+0x315/0x570 kernel/events/core.c:9630
perf_tp_event+0x3e7/0xc30 kernel/events/core.c:10064
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10032
perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xbc/0x120 kernel/locking/spinlock.c:194
Code: c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 41 c6 04 07 f8 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 2f ed 20 f7 65 8b 05 80 70 ca 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc900001e09a0 EFLAGS: 00000206
RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: b001b454cc0f8300
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: 0000000000000001
RBP: ffffc900001e0a20 R08: ffffffff90af9327 R09: 1ffffffff215f264
R10: dffffc0000000000 R11: fffffbfff215f265 R12: dffffc0000000000
R13: ffff88806400d230 R14: ffffffff96e52260 R15: 1ffff9200003c134
debug_object_assert_init+0x1ed/0x2f0 lib/debugobjects.c:889
debug_timer_assert_init kernel/time/timer.c:792 [inline]
debug_assert_init kernel/time/timer.c:837 [inline]
__mod_timer+0x54/0xd00 kernel/time/timer.c:1020
mrp_join_timer_arm net/802/mrp.c:596 [inline]
mrp_join_timer+0x13b/0x170 net/802/mrp.c:611
call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
expire_timers kernel/time/timer.c:1752 [inline]
__run_timers+0x53e/0x800 kernel/time/timer.c:2023
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6874
Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 15 64 22 f7 e8 10 58 52 f7 fb bf 01 00 00 00 <e8> 75 b9 ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc9000ca9fb80 EFLAGS: 00000282
RAX: b001b454cc0f8300 RBX: 0000000000000000 RCX: b001b454cc0f8300
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: 0000000000000001
RBP: ffffc9000ca9fc20 R08: ffff8880b8f3580b R09: 1ffff110171e6b01
R10: dffffc0000000000 R11: ffffed10171e6b02 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92001953f70
irqentry_exit+0x63/0x70 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__ref_is_percpu include/linux/percpu-refcount.h:174 [inline]
RIP: 0010:percpu_ref_tryget_many include/linux/percpu-refcount.h:243 [inline]
RIP: 0010:percpu_ref_tryget+0x8e/0x180 include/linux/percpu-refcount.h:266
Code: 61 98 8a be 19 03 00 00 48 c7 c2 40 61 98 8a e8 08 1a 8a ff 49 bf 00 00 00 00 00 fc ff df 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 <74> 08 4c 89 f7 e8 48 ad f8 ff 49 8b 06 a8 03 75 67 65 48 ff 00 40
RSP: 0018:ffffc9000ca9fce8 EFLAGS: 00000246
RAX: 1ffff110048f3c00 RBX: ffffffff81dad3c5 RCX: b001b454cc0f8300
RDX: 0000000000000000 RSI: ffffffff8adf1300 RDI: ffffffff8adf12c0
RBP: 0000000000000cc0 R08: dffffc0000000000 R09: 1ffffffff215f248
R10: dffffc0000000000 R11: fffffbfff215f249 R12: ffff88814011c860
R13: 0000000000000580 R14: ffff88802479e000 R15: dffffc0000000000
obj_cgroup_tryget include/linux/memcontrol.h:779 [inline]
__get_obj_cgroup_from_memcg+0x70/0xe0 mm/memcontrol.c:3004
get_obj_cgroup_from_current+0x16b/0x280 mm/memcontrol.c:3024
memcg_slab_pre_alloc_hook mm/slab.h:485 [inline]
slab_pre_alloc_hook+0x91/0x310 mm/slab.h:715
slab_alloc_node mm/slub.c:3279 [inline]
slab_alloc mm/slub.c:3367 [inline]
__kmem_cache_alloc_lru mm/slub.c:3374 [inline]
kmem_cache_alloc_lru+0x49/0x2e0 mm/slub.c:3390
alloc_inode_sb include/linux/fs.h:3245 [inline]
sock_alloc_inode+0x24/0xc0 net/socket.c:306
alloc_inode fs/inode.c:261 [inline]
new_inode_pseudo+0x5f/0x1c0 fs/inode.c:1063
sock_alloc net/socket.c:631 [inline]
__sock_create+0x129/0x940 net/socket.c:1513
sock_create net/socket.c:1605 [inline]
__sys_socket_create net/socket.c:1642 [inline]
__sys_socket+0xc4/0x190 net/socket.c:1670
__do_sys_socket net/socket.c:1683 [inline]
__se_sys_socket net/socket.c:1681 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1681
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f873359cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8734418028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f8733815fa0 RCX: 00007f873359cdd9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000000a
RBP: 00007f8733632d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8733816038 R14: 00007f8733815fa0 R15: 00007fff2e7b9c08
</TASK>
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
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