[v5.15] INFO: rcu detected stall in sys_clock_adjtime
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syzbot
Apr 6, 2023, 2:02:44 PM4/6/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: d86dfc4d95cd Linux 5.15.106
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15bc241dc80000
kernel config: https://syzkaller.appspot.com/x/.config?x=dca379fe384dda80
dashboard link: https://syzkaller.appspot.com/bug?extid=2a9eb855886c8c69a62e
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/2c159eb4fcae/disk-d86dfc4d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/5f50187f87c7/vmlinux-d86dfc4d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/f787f3f09c09/bzImage-d86dfc4d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2a9eb8...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (1 ticks this GP) idle=ecb/1/0x4000000000000000 softirq=119918/119918 fqs=0
(t=27847 jiffies g=201405 q=29)
rcu: rcu_preempt kthread timer wakeup didn't happen for 27846 jiffies! g201405 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=180533
rcu: rcu_preempt kthread starved for 27847 jiffies! g201405 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26744 pid: 15 ppid: 2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x2af/0xf70 kernel/rcu/tree.c:1958
rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2131
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
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: 16403 Comm: syz-executor.0 Not tainted 5.15.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:debug_lockdep_rcu_enabled+0x0/0x30 kernel/rcu/update.c:279
Code: ad 61 cc 03 00 75 e7 48 c7 c7 80 ef 8a 8a 48 c7 c6 40 14 8b 8a e8 d0 af 34 f7 0f 0b eb d0 cc cc cc cc cc cc cc cc cc cc cc cc <31> c0 83 3d fb 2e cc 03 00 74 1d 83 3d 72 61 cc 03 00 74 14 65 48
RSP: 0018:ffffc90000dd0cb8 EFLAGS: 00000046
RAX: ffff88801964b980 RBX: 0000000000000001 RCX: ffff888020c39d00
RDX: 0000000000010002 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888037010ae8 R08: ffffffff88667bd4 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888037010800
R13: ffff888037010b40 R14: dffffc0000000000 R15: ffff888037010b28
FS: 00007f3d5fd59700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3d5fd59718 CR3: 000000006cf0e000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
advance_sched+0xb3/0x940 net/sched/sch_taprio.c:719
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 72 c6 a8 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 67 b4 36 f7 65 8b 05 88 33 e2 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90002edf8c0 EFLAGS: 00000206
RAX: ba0bda5ead74de00 RBX: 1ffff920005dbf1c RCX: ffffffff913aef03
RDX: dffffc0000000000 RSI: ffffffff8a8af0e0 RDI: 0000000000000001
RBP: ffffc90002edf960 R08: ffffffff818628c0 R09: ffffed10033d9092
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920005dbf18 R14: ffffc90002edf8e0 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
timerfd_clock_was_set+0x1b3/0x2a0 fs/timerfd.c:113
clock_was_set+0x7e8/0x880 kernel/time/hrtimer.c:980
timekeeping_inject_offset+0x65f/0x710 kernel/time/timekeeping.c:1378
do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2427
do_clock_adjtime kernel/time/posix-timers.c:1118 [inline]
__do_sys_clock_adjtime kernel/time/posix-timers.c:1130 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1121 [inline]
__x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1121
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3d61808169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3d5fd59168 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f3d61928050 RCX: 00007f3d61808169
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f3d61863ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb056849f R14: 00007f3d5fd59300 R15: 0000000000022000
</TASK>
NMI backtrace for cpu 0
CPU: 0 PID: 3591 Comm: syz-fuzzer Not tainted 5.15.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_dump_cpu_stacks+0x223/0x390 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:3887 [inline]
rcu_sched_clock_irq+0xf26/0x1770 kernel/rcu/tree.c:2605
update_process_times+0x196/0x200 kernel/time/timer.c:1788
tick_sched_handle kernel/time/tick-sched.c:226 [inline]
tick_sched_timer+0x22d/0x3c0 kernel/time/tick-sched.c:1420
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x50f687
Code: 89 c9 48 29 d1 48 c1 f9 3f 49 21 c9 47 8b 04 01 41 0f c8 45 69 c0 bd a7 35 1e 41 c1 e8 0f 41 81 e0 ff ff 01 00 46 8b 4c 80 68 <4c> 89 48 60 4c 8b 90 70 00 0a 00 41 81 e2 ff 7f 00 00 46 89 8c 90
RSP: 002b:000000c008141718 EFLAGS: 00000202
RAX: 000000c000696000 RBX: 000000c000750000 RCX: ffffffffffffffff
RDX: 0000000000010000 RSI: 00000000000005cf RDI: 0000000000004001
RBP: 000000c008141778 R08: 000000000001cb4a R09: 0000000000959abc
R10: 000000c000750000 R11: 0000000000000000 R12: 0000000000000102
R13: 0000000000010000 R14: 000000c00856a680 R15: ffffffffffff7330
</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.
syzbot found the following issue on:
HEAD commit: d86dfc4d95cd Linux 5.15.106
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15bc241dc80000
kernel config: https://syzkaller.appspot.com/x/.config?x=dca379fe384dda80
dashboard link: https://syzkaller.appspot.com/bug?extid=2a9eb855886c8c69a62e
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/2c159eb4fcae/disk-d86dfc4d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/5f50187f87c7/vmlinux-d86dfc4d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/f787f3f09c09/bzImage-d86dfc4d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2a9eb8...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-...!: (1 ticks this GP) idle=ecb/1/0x4000000000000000 softirq=119918/119918 fqs=0
(t=27847 jiffies g=201405 q=29)
rcu: rcu_preempt kthread timer wakeup didn't happen for 27846 jiffies! g201405 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=180533
rcu: rcu_preempt kthread starved for 27847 jiffies! g201405 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26744 pid: 15 ppid: 2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x2af/0xf70 kernel/rcu/tree.c:1958
rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2131
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
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: 16403 Comm: syz-executor.0 Not tainted 5.15.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:debug_lockdep_rcu_enabled+0x0/0x30 kernel/rcu/update.c:279
Code: ad 61 cc 03 00 75 e7 48 c7 c7 80 ef 8a 8a 48 c7 c6 40 14 8b 8a e8 d0 af 34 f7 0f 0b eb d0 cc cc cc cc cc cc cc cc cc cc cc cc <31> c0 83 3d fb 2e cc 03 00 74 1d 83 3d 72 61 cc 03 00 74 14 65 48
RSP: 0018:ffffc90000dd0cb8 EFLAGS: 00000046
RAX: ffff88801964b980 RBX: 0000000000000001 RCX: ffff888020c39d00
RDX: 0000000000010002 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888037010ae8 R08: ffffffff88667bd4 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888037010800
R13: ffff888037010b40 R14: dffffc0000000000 R15: ffff888037010b28
FS: 00007f3d5fd59700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3d5fd59718 CR3: 000000006cf0e000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
advance_sched+0xb3/0x940 net/sched/sch_taprio.c:719
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1097
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 72 c6 a8 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 67 b4 36 f7 65 8b 05 88 33 e2 75 85 c0 74 3f 48 c7 04 24 0e 36
RSP: 0018:ffffc90002edf8c0 EFLAGS: 00000206
RAX: ba0bda5ead74de00 RBX: 1ffff920005dbf1c RCX: ffffffff913aef03
RDX: dffffc0000000000 RSI: ffffffff8a8af0e0 RDI: 0000000000000001
RBP: ffffc90002edf960 R08: ffffffff818628c0 R09: ffffed10033d9092
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff920005dbf18 R14: ffffc90002edf8e0 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
timerfd_clock_was_set+0x1b3/0x2a0 fs/timerfd.c:113
clock_was_set+0x7e8/0x880 kernel/time/hrtimer.c:980
timekeeping_inject_offset+0x65f/0x710 kernel/time/timekeeping.c:1378
do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2427
do_clock_adjtime kernel/time/posix-timers.c:1118 [inline]
__do_sys_clock_adjtime kernel/time/posix-timers.c:1130 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1121 [inline]
__x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1121
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3d61808169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3d5fd59168 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f3d61928050 RCX: 00007f3d61808169
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f3d61863ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffb056849f R14: 00007f3d5fd59300 R15: 0000000000022000
</TASK>
NMI backtrace for cpu 0
CPU: 0 PID: 3591 Comm: syz-fuzzer Not tainted 5.15.106-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
rcu_dump_cpu_stacks+0x223/0x390 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:3887 [inline]
rcu_sched_clock_irq+0xf26/0x1770 kernel/rcu/tree.c:2605
update_process_times+0x196/0x200 kernel/time/timer.c:1788
tick_sched_handle kernel/time/tick-sched.c:226 [inline]
tick_sched_timer+0x22d/0x3c0 kernel/time/tick-sched.c:1420
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x50f687
Code: 89 c9 48 29 d1 48 c1 f9 3f 49 21 c9 47 8b 04 01 41 0f c8 45 69 c0 bd a7 35 1e 41 c1 e8 0f 41 81 e0 ff ff 01 00 46 8b 4c 80 68 <4c> 89 48 60 4c 8b 90 70 00 0a 00 41 81 e2 ff 7f 00 00 46 89 8c 90
RSP: 002b:000000c008141718 EFLAGS: 00000202
RAX: 000000c000696000 RBX: 000000c000750000 RCX: ffffffffffffffff
RDX: 0000000000010000 RSI: 00000000000005cf RDI: 0000000000004001
RBP: 000000c008141778 R08: 000000000001cb4a R09: 0000000000959abc
R10: 000000c000750000 R11: 0000000000000000 R12: 0000000000000102
R13: 0000000000010000 R14: 000000c00856a680 R15: ffffffffffff7330
</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.
syzbot
Oct 8, 2023, 4:44:56 PM10/8/23
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 1edcec18cfb7 Linux 5.15.134
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=11112dee680000
kernel config: https://syzkaller.appspot.com/x/.config?x=48b4459c94d40a13
dashboard link: https://syzkaller.appspot.com/bug?extid=2a9eb855886c8c69a62e
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12d6de79680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12184c2e680000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e1026cce7395/disk-1edcec18.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/0a562b315d9c/vmlinux-1edcec18.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5a8a2cdde6e6/bzImage-1edcec18.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2a9eb8...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (0 ticks this GP) idle=e27/1/0x4000000000000000 softirq=4678/4678 fqs=0
(detected by 1, t=10502 jiffies, g=3917, q=393)
Sending NMI from CPU 1 to CPUs 0:
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__raw_callee_save___pv_queued_spin_unlock+0xc/0x12
Code: 56 57 41 50 41 51 41 52 41 53 e8 bf 0a 00 00 41 5b 41 5a 41 59 41 58 5f 5e 5a 59 c3 66 90 52 b8 01 00 00 00 31 d2 f0 0f b0 17 <3c> 01 75 02 5a c3 56 0f b6 f0 e8 c5 ff ff ff 5e 5a c3 66 90 55 48
RSP: 0018:ffffc90000007c30 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff22c3966 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff9161cb28
RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffffbfff22c3966
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff22c3967
R13: ffffffff9161cb38 R14: ffffffff9161cb30 R15: ffffffff9161cb28
FS: 0000555557195380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
</NMI>
<IRQ>
pv_queued_spin_unlock arch/x86/include/asm/paravirt.h:590 [inline]
queued_spin_unlock arch/x86/include/asm/qspinlock.h:56 [inline]
do_raw_spin_unlock+0x137/0x8b0 kernel/locking/spinlock_debug.c:141
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:159 [inline]
_raw_spin_unlock_irqrestore+0x7d/0x130 kernel/locking/spinlock.c:194
debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline]
debug_deactivate+0x1b/0x1e0 kernel/time/hrtimer.c:481
__run_hrtimer kernel/time/hrtimer.c:1653 [inline]
__hrtimer_run_queues+0x31d/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
RSP: 0018:ffffc90002cdf920 EFLAGS: 00000206
RAX: 4268b52669e07700 RBX: 1ffff9200059bf28 RCX: ffffffff8162e998
RDX: dffffc0000000000 RSI: ffffffff8a8b0b60 RDI: 0000000000000001
RBP: ffffc90002cdf9b0 R08: dffffc0000000000 R09: fffffbfff1f7b221
clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:970
__do_sys_clock_adjtime kernel/time/posix-timers.c:1161 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1152 [inline]
__x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1152
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd5db6aa58 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f876be3bee9
RDX: 00007f876be3bee9 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd5db6aab0
R13: 0000000000000001 R14: 00007ffd5db6aab0 R15: 0000000000000003
</TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.711 msecs
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g3917 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=10309
rcu: rcu_preempt kthread starved for 10502 jiffies! g3917 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2132
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__lock_acquire+0xf28/0x1ff0
Code: cf 89 ca c1 c2 06 44 31 fa 01 c1 29 d0 89 d6 c1 c6 08 31 c6 01 ca 29 f1 89 f3 c1 c3 10 31 cb 01 d6 29 da 89 dd c1 c5 13 31 d5 <01> f3 29 ee 01 eb c1 c5 04 31 f5 48 c1 e5 20 48 c7 c0 48 48 e4 8d
RSP: 0018:ffffc90000007a60 EFLAGS: 00000082
RAX: 0000000000104aa9 RBX: 000000000f0c4fd8 RCX: 00000000105aa07d
RDX: 00000000f0e32550 RSI: 00000000ef94947e RDI: dffffc0000000000
RBP: 000000008e235d32 R08: dffffc0000000000 R09: fffffbfff1f7b221
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888023fd4668 R14: 1ffff110047fa8cc R15: 000000000000402a
FS: 0000555557195380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
</NMI>
<IRQ>
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269
rcu_read_lock include/linux/rcupdate.h:696 [inline]
advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:769
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
RSP: 0018:ffffc90002cdf920 EFLAGS: 00000206
RAX: 4268b52669e07700 RBX: 1ffff9200059bf28 RCX: ffffffff8162e998
RDX: dffffc0000000000 RSI: ffffffff8a8b0b60 RDI: 0000000000000001
RBP: ffffc90002cdf9b0 R08: dffffc0000000000 R09: fffffbfff1f7b221
clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:970
__do_sys_clock_adjtime kernel/time/posix-timers.c:1161 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1152 [inline]
__x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1152
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd5db6aa58 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f876be3bee9
RDX: 00007f876be3bee9 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd5db6aab0
R13: 0000000000000001 R14: 00007ffd5db6aab0 R15: 0000000000000003
</TASK>
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: 1edcec18cfb7 Linux 5.15.134
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=11112dee680000
kernel config: https://syzkaller.appspot.com/x/.config?x=48b4459c94d40a13
dashboard link: https://syzkaller.appspot.com/bug?extid=2a9eb855886c8c69a62e
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12d6de79680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12184c2e680000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e1026cce7395/disk-1edcec18.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/0a562b315d9c/vmlinux-1edcec18.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5a8a2cdde6e6/bzImage-1edcec18.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2a9eb8...@syzkaller.appspotmail.com
rcu: 0-...!: (0 ticks this GP) idle=e27/1/0x4000000000000000 softirq=4678/4678 fqs=0
(detected by 1, t=10502 jiffies, g=3917, q=393)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3529 Comm: syz-executor213 Not tainted 5.15.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__raw_callee_save___pv_queued_spin_unlock+0xc/0x12
Code: 56 57 41 50 41 51 41 52 41 53 e8 bf 0a 00 00 41 5b 41 5a 41 59 41 58 5f 5e 5a 59 c3 66 90 52 b8 01 00 00 00 31 d2 f0 0f b0 17 <3c> 01 75 02 5a c3 56 0f b6 f0 e8 c5 ff ff ff 5e 5a c3 66 90 55 48
RSP: 0018:ffffc90000007c30 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff22c3966 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff9161cb28
RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffffbfff22c3966
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff22c3967
R13: ffffffff9161cb38 R14: ffffffff9161cb30 R15: ffffffff9161cb28
FS: 0000555557195380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000600 CR3: 000000001ea1c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
</NMI>
<IRQ>
pv_queued_spin_unlock arch/x86/include/asm/paravirt.h:590 [inline]
queued_spin_unlock arch/x86/include/asm/qspinlock.h:56 [inline]
do_raw_spin_unlock+0x137/0x8b0 kernel/locking/spinlock_debug.c:141
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:159 [inline]
_raw_spin_unlock_irqrestore+0x7d/0x130 kernel/locking/spinlock.c:194
debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline]
debug_deactivate+0x1b/0x1e0 kernel/time/hrtimer.c:481
__run_hrtimer kernel/time/hrtimer.c:1653 [inline]
__hrtimer_run_queues+0x31d/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 52 fa a3 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> e7 59 31 f7 65 8b 05 38 96 dc 75 85 c0 74 3f 48 c7 04 24 0e 36
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
RSP: 0018:ffffc90002cdf920 EFLAGS: 00000206
RAX: 4268b52669e07700 RBX: 1ffff9200059bf28 RCX: ffffffff8162e998
RDX: dffffc0000000000 RSI: ffffffff8a8b0b60 RDI: 0000000000000001
RBP: ffffc90002cdf9b0 R08: dffffc0000000000 R09: fffffbfff1f7b221
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200059bf24 R14: ffffc90002cdf940 R15: 0000000000000246
clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:970
timekeeping_inject_offset+0x65f/0x710 kernel/time/timekeeping.c:1378
do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2427
do_clock_adjtime kernel/time/posix-timers.c:1149 [inline]
do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2427
__do_sys_clock_adjtime kernel/time/posix-timers.c:1161 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1152 [inline]
__x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1152
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f876be3bee9
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd5db6aa58 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f876be3bee9
RDX: 00007f876be3bee9 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd5db6aab0
R13: 0000000000000001 R14: 00007ffd5db6aab0 R15: 0000000000000003
</TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.711 msecs
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g3917 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=10309
rcu: rcu_preempt kthread starved for 10502 jiffies! g3917 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:I stack:27000 pid: 15 ppid: 2 flags:0x00004000
rcu: RCU grace-period kthread stack dump:
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6372
<TASK>
context_switch kernel/sched/core.c:5026 [inline]
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
rcu_gp_fqs_loop+0x2af/0xf70 kernel/rcu/tree.c:1959
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1884
rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2132
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 0
CPU: 0 PID: 3529 Comm: syz-executor213 Not tainted 5.15.134-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:__lock_acquire+0xf28/0x1ff0
Code: cf 89 ca c1 c2 06 44 31 fa 01 c1 29 d0 89 d6 c1 c6 08 31 c6 01 ca 29 f1 89 f3 c1 c3 10 31 cb 01 d6 29 da 89 dd c1 c5 13 31 d5 <01> f3 29 ee 01 eb c1 c5 04 31 f5 48 c1 e5 20 48 c7 c0 48 48 e4 8d
RSP: 0018:ffffc90000007a60 EFLAGS: 00000082
RAX: 0000000000104aa9 RBX: 000000000f0c4fd8 RCX: 00000000105aa07d
RDX: 00000000f0e32550 RSI: 00000000ef94947e RDI: dffffc0000000000
RBP: 000000008e235d32 R08: dffffc0000000000 R09: fffffbfff1f7b221
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff888023fd4668 R14: 1ffff110047fa8cc R15: 000000000000402a
FS: 0000555557195380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000600 CR3: 000000001ea1c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
</NMI>
<IRQ>
lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5622
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:269
rcu_read_lock include/linux/rcupdate.h:696 [inline]
advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:769
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
__sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 52 fa a3 f7 f6 44 24 21 02 75 4e 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> e7 59 31 f7 65 8b 05 38 96 dc 75 85 c0 74 3f 48 c7 04 24 0e 36
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd4/0x130 kernel/locking/spinlock.c:194
RSP: 0018:ffffc90002cdf920 EFLAGS: 00000206
RAX: 4268b52669e07700 RBX: 1ffff9200059bf28 RCX: ffffffff8162e998
RDX: dffffc0000000000 RSI: ffffffff8a8b0b60 RDI: 0000000000000001
RBP: ffffc90002cdf9b0 R08: dffffc0000000000 R09: fffffbfff1f7b221
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200059bf24 R14: ffffc90002cdf940 R15: 0000000000000246
clock_was_set+0x67d/0x880 kernel/time/hrtimer.c:970
timekeeping_inject_offset+0x65f/0x710 kernel/time/timekeeping.c:1378
do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2427
do_clock_adjtime kernel/time/posix-timers.c:1149 [inline]
do_adjtimex+0x511/0xaa0 kernel/time/timekeeping.c:2427
__do_sys_clock_adjtime kernel/time/posix-timers.c:1161 [inline]
__se_sys_clock_adjtime kernel/time/posix-timers.c:1152 [inline]
__x64_sys_clock_adjtime+0x1dc/0x290 kernel/time/posix-timers.c:1152
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f876be3bee9
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd5db6aa58 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f876be3bee9
RDX: 00007f876be3bee9 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd5db6aab0
R13: 0000000000000001 R14: 00007ffd5db6aab0 R15: 0000000000000003
</TASK>
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
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