[v6.1] INFO: rcu detected stall in tc_ctl_action
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syzbot
May 26, 2023, 10:37:45 PM5/26/23
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: a343b0dd87b4 Linux 6.1.30
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=124d2485280000
kernel config: https://syzkaller.appspot.com/x/.config?x=5265a3c898f3cbbb
dashboard link: https://syzkaller.appspot.com/bug?extid=ac293cafec0d4bf2d699
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/195d974b1f1c/disk-a343b0dd.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea41850547fb/vmlinux-a343b0dd.xz
kernel image: https://storage.googleapis.com/syzbot-assets/13ec9e70ad28/bzImage-a343b0dd.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ac293c...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 ticks this GP) idle=e414/1/0x4000000000000000 softirq=53181/53181 fqs=0
(detected by 1, t=10502 jiffies, g=78557, q=4 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 16002 Comm: syz-executor.5 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
RIP: 0010:arch_irqs_disabled_flags arch/x86/include/asm/irqflags.h:125 [inline]
RIP: 0010:lock_acquire+0x1c4/0x5a0 kernel/locking/lockdep.c:5670
Code: 08 4c 89 ff e8 ed 48 76 00 48 8d 5c 24 60 4c 8b bc 24 80 00 00 00 fa 48 c7 c7 80 dd eb 8a e8 43 1d 19 09 65 ff 05 dc b4 98 7e <45> 31 c9 41 f7 c7 00 02 00 00 41 0f 94 c1 48 8b 7c 24 20 44 89 f6
RSP: 0018:ffffc90000007b40 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffffc90000007ba0 RCX: ffffffff8169c30b
RDX: 0000000000000000 RSI: ffffffff8aebdd80 RDI: ffffffff8b3cc8a0
RBP: ffffc90000007ca0 R08: dffffc0000000000 R09: fffffbfff1ca62be
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000f70
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000046
FS: 00007f3c9c7ea700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3a857ff8 CR3: 000000008fe48000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:306
rcu_read_lock include/linux/rcupdate.h:747 [inline]
advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:753
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_emit_next_record+0xb70/0xda0 kernel/printk/printk.c:2740
Code: 00 48 8b 5c 24 68 44 0f b6 74 24 1f 4d 85 e4 75 07 e8 84 05 1c 00 eb 06 e8 7d 05 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <41> c7 44 1d 00 00 00 00 00 49 c7 44 1d 0a 00 00 00 00 49 c7 44 1d
RSP: 0018:ffffc9000675e2a0 EFLAGS: 00000283
RAX: ffffffff816dbff3 RBX: 1ffff92000cebc68 RCX: 0000000000040000
RDX: ffffc90004a68000 RSI: 000000000002a085 RDI: 000000000002a086
RBP: ffffc9000675e550 R08: ffffffff816dbfc9 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000200
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc9000675e5c0
console_unlock+0x278/0x6e0 kernel/printk/printk.c:2860
vprintk_emit+0xd1/0x1f0 kernel/printk/printk.c:2268
_printk+0xd1/0x111 kernel/printk/printk.c:2289
__nla_validate_parse+0x229d/0x2b70 lib/nlattr.c:615
__nla_parse+0x3c/0x50 lib/nlattr.c:700
nla_parse_nested_deprecated include/net/netlink.h:1248 [inline]
tcf_skbedit_init+0x188/0x11c0 net/sched/act_skbedit.c:137
tcf_action_init_1+0x55c/0x840 net/sched/act_api.c:1398
tcf_action_init+0x34c/0x9a0 net/sched/act_api.c:1463
tcf_action_add net/sched/act_api.c:1987 [inline]
tc_ctl_action+0x48e/0xd10 net/sched/act_api.c:2046
rtnetlink_rcv_msg+0x776/0xf00 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2524
netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1902
sock_sendmsg_nosec net/socket.c:716 [inline]
sock_sendmsg net/socket.c:736 [inline]
____sys_sendmsg+0x59e/0x8f0 net/socket.c:2482
___sys_sendmsg net/socket.c:2536 [inline]
__sys_sendmsg+0x2a9/0x390 net/socket.c:2565
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+0x63/0xcd
RIP: 0033:0x7f3c9ba8c169
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:00007f3c9c7ea168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3c9bbabf80 RCX: 00007f3c9ba8c169
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f3c9bae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc715f061f R14: 00007f3c9c7ea300 R15: 0000000000022000
</TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g78557 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=114608
rcu: rcu_preempt kthread starved for 10502 jiffies! g78557 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:26712 pid:16 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x132c/0x4330 kernel/sched/core.c:6554
schedule+0xbf/0x180 kernel/sched/core.c:6630
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x2c2/0x1010 kernel/rcu/tree.c:1661
rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1860
kthread+0x26e/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 16002 Comm: syz-executor.5 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
RIP: 0010:check_preemption_disabled+0x27/0x110 lib/smp_processor_id.c:16
Code: 8b eb 00 41 57 41 56 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d 68 39 7f 75 65 8b 05 11 8f 7f 75 <a9> ff ff ff 7f 74 22 65 48 8b 04 25 28 00 00 00 48 3b 44 24 08 0f
RSP: 0018:ffffc90000007b48 EFLAGS: 00000086
RAX: 0000000000010001 RBX: 0000000000000000 RCX: ffffffff8169e947
RDX: 0000000000000000 RSI: ffffffff8aebdd80 RDI: ffffffff8b3cc8a0
RBP: ffffc90000007cb0 R08: dffffc0000000000 R09: fffffbfff1ca62be
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000f7c
R13: 0000000000000046 R14: ffffc90000007c30 R15: dffffc0000000000
FS: 00007f3c9c7ea700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3a857ff8 CR3: 000000008fe48000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
lockdep_recursion_inc kernel/locking/lockdep.c:462 [inline]
lock_release+0x19e/0xa20 kernel/locking/lockdep.c:5688
rcu_read_unlock include/linux/rcupdate.h:780 [inline]
advance_sched+0x7d4/0x940 net/sched/sch_taprio.c:755
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_emit_next_record+0xb70/0xda0 kernel/printk/printk.c:2740
Code: 00 48 8b 5c 24 68 44 0f b6 74 24 1f 4d 85 e4 75 07 e8 84 05 1c 00 eb 06 e8 7d 05 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <41> c7 44 1d 00 00 00 00 00 49 c7 44 1d 0a 00 00 00 00 49 c7 44 1d
RSP: 0018:ffffc9000675e2a0 EFLAGS: 00000283
RAX: ffffffff816dbff3 RBX: 1ffff92000cebc68 RCX: 0000000000040000
RDX: ffffc90004a68000 RSI: 000000000002a085 RDI: 000000000002a086
RBP: ffffc9000675e550 R08: ffffffff816dbfc9 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000200
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc9000675e5c0
console_unlock+0x278/0x6e0 kernel/printk/printk.c:2860
vprintk_emit+0xd1/0x1f0 kernel/printk/printk.c:2268
_printk+0xd1/0x111 kernel/printk/printk.c:2289
__nla_validate_parse+0x229d/0x2b70 lib/nlattr.c:615
__nla_parse+0x3c/0x50 lib/nlattr.c:700
nla_parse_nested_deprecated include/net/netlink.h:1248 [inline]
tcf_skbedit_init+0x188/0x11c0 net/sched/act_skbedit.c:137
tcf_action_init_1+0x55c/0x840 net/sched/act_api.c:1398
tcf_action_init+0x34c/0x9a0 net/sched/act_api.c:1463
tcf_action_add net/sched/act_api.c:1987 [inline]
tc_ctl_action+0x48e/0xd10 net/sched/act_api.c:2046
rtnetlink_rcv_msg+0x776/0xf00 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2524
netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1902
sock_sendmsg_nosec net/socket.c:716 [inline]
sock_sendmsg net/socket.c:736 [inline]
____sys_sendmsg+0x59e/0x8f0 net/socket.c:2482
___sys_sendmsg net/socket.c:2536 [inline]
__sys_sendmsg+0x2a9/0x390 net/socket.c:2565
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+0x63/0xcd
RIP: 0033:0x7f3c9ba8c169
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:00007f3c9c7ea168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3c9bbabf80 RCX: 00007f3c9ba8c169
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f3c9bae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc715f061f R14: 00007f3c9c7ea300 R15: 0000000000022000
</TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [kworker/u4:45:11458]
Modules linked in:
irq event stamp: 37688056
hardirqs last enabled at (37688055): [<ffffffff8aa00cc6>] asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
hardirqs last disabled at (37688056): [<ffffffff8a82baea>] sysvec_apic_timer_interrupt+0xa/0xb0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (37637460): [<ffffffff8153c6d5>] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last enabled at (37637460): [<ffffffff8153c6d5>] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
softirqs last disabled at (37637423): [<ffffffff8153c6d5>] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last disabled at (37637423): [<ffffffff8153c6d5>] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
CPU: 1 PID: 11458 Comm: kworker/u4:45 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:413 [inline]
RIP: 0010:smp_call_function_many_cond+0x1f62/0x33d0 kernel/smp.c:987
Code: 2f 44 89 ee 83 e6 01 31 ff e8 5a 0c 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 e5 08 0b 00 e9 1b ff ff ff f3 90 <42> 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe ff ff
RSP: 0018:ffffc9001d10f5a0 EFLAGS: 00000293
RAX: ffffffff817ebcad RBX: 1ffff11017308415 RCX: ffff8880444a9dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9001d10f980 R08: ffffffff817ebc76 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b98420a8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcbaa34f718 CR3: 000000000cc8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1155
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1316 [inline]
text_poke_bp_batch+0x2bb/0x940 arch/x86/kernel/alternative.c:1516
text_poke_flush arch/x86/kernel/alternative.c:1707 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1714
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate+0xbf/0x480 mm/kfence/core.c:804
process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2289
worker_thread+0xa5f/0x1210 kernel/workqueue.c:2436
kthread+0x26e/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 16002 Comm: syz-executor.5 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
RIP: 0010:hlock_class kernel/locking/lockdep.c:240 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4730 [inline]
RIP: 0010:__lock_acquire+0x49f/0x1f80 kernel/locking/lockdep.c:5006
Code: 00 44 89 33 44 89 fb 48 89 d8 48 c1 e8 06 48 8d 3c c5 20 82 28 90 be 08 00 00 00 e8 ab 40 76 00 48 0f a3 1d 83 b4 be 0e 73 25 <48> 8d 04 5b 48 c1 e0 06 48 8d 98 20 e1 f7 8f 48 ba 00 00 00 00 00
RSP: 0018:ffffc90000007920 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8169cd95
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90288220
RBP: ffff88803e2ea884 R08: dffffc0000000000 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803e2ea898
R13: ffff88803e2e9dc0 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f3c9c7ea700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3a857ff8 CR3: 000000008fe48000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5669
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
debug_object_activate+0x16b/0x860 lib/debugobjects.c:697
debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
debug_activate kernel/time/hrtimer.c:475 [inline]
enqueue_hrtimer+0x30/0x390 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0x728/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_emit_next_record+0xb70/0xda0 kernel/printk/printk.c:2740
Code: 00 48 8b 5c 24 68 44 0f b6 74 24 1f 4d 85 e4 75 07 e8 84 05 1c 00 eb 06 e8 7d 05 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <41> c7 44 1d 00 00 00 00 00 49 c7 44 1d 0a 00 00 00 00 49 c7 44 1d
RSP: 0018:ffffc9000675e2a0 EFLAGS: 00000283
RAX: ffffffff816dbff3 RBX: 1ffff92000cebc68 RCX: 0000000000040000
RDX: ffffc90004a68000 RSI: 000000000002a085 RDI: 000000000002a086
RBP: ffffc9000675e550 R08: ffffffff816dbfc9 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000200
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc9000675e5c0
console_unlock+0x278/0x6e0 kernel/printk/printk.c:2860
vprintk_emit+0xd1/0x1f0 kernel/printk/printk.c:2268
_printk+0xd1/0x111 kernel/printk/printk.c:2289
__nla_validate_parse+0x229d/0x2b70 lib/nlattr.c:615
__nla_parse+0x3c/0x50 lib/nlattr.c:700
nla_parse_nested_deprecated include/net/netlink.h:1248 [inline]
tcf_skbedit_init+0x188/0x11c0 net/sched/act_skbedit.c:137
tcf_action_init_1+0x55c/0x840 net/sched/act_api.c:1398
tcf_action_init+0x34c/0x9a0 net/sched/act_api.c:1463
tcf_action_add net/sched/act_api.c:1987 [inline]
tc_ctl_action+0x48e/0xd10 net/sched/act_api.c:2046
rtnetlink_rcv_msg+0x776/0xf00 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2524
netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1902
sock_sendmsg_nosec net/socket.c:716 [inline]
sock_sendmsg net/socket.c:736 [inline]
____sys_sendmsg+0x59e/0x8f0 net/socket.c:2482
___sys_sendmsg net/socket.c:2536 [inline]
__sys_sendmsg+0x2a9/0x390 net/socket.c:2565
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+0x63/0xcd
RIP: 0033:0x7f3c9ba8c169
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:00007f3c9c7ea168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3c9bbabf80 RCX: 00007f3c9ba8c169
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f3c9bae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc715f061f R14: 00007f3c9c7ea300 R15: 0000000000022000
</TASK>
---
This report is generated by a bot. It may contain errors.
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syzbot found the following issue on:
HEAD commit: a343b0dd87b4 Linux 6.1.30
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=124d2485280000
kernel config: https://syzkaller.appspot.com/x/.config?x=5265a3c898f3cbbb
dashboard link: https://syzkaller.appspot.com/bug?extid=ac293cafec0d4bf2d699
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/195d974b1f1c/disk-a343b0dd.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea41850547fb/vmlinux-a343b0dd.xz
kernel image: https://storage.googleapis.com/syzbot-assets/13ec9e70ad28/bzImage-a343b0dd.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ac293c...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 ticks this GP) idle=e414/1/0x4000000000000000 softirq=53181/53181 fqs=0
(detected by 1, t=10502 jiffies, g=78557, q=4 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 16002 Comm: syz-executor.5 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
RIP: 0010:arch_irqs_disabled_flags arch/x86/include/asm/irqflags.h:125 [inline]
RIP: 0010:lock_acquire+0x1c4/0x5a0 kernel/locking/lockdep.c:5670
Code: 08 4c 89 ff e8 ed 48 76 00 48 8d 5c 24 60 4c 8b bc 24 80 00 00 00 fa 48 c7 c7 80 dd eb 8a e8 43 1d 19 09 65 ff 05 dc b4 98 7e <45> 31 c9 41 f7 c7 00 02 00 00 41 0f 94 c1 48 8b 7c 24 20 44 89 f6
RSP: 0018:ffffc90000007b40 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffffc90000007ba0 RCX: ffffffff8169c30b
RDX: 0000000000000000 RSI: ffffffff8aebdd80 RDI: ffffffff8b3cc8a0
RBP: ffffc90000007ca0 R08: dffffc0000000000 R09: fffffbfff1ca62be
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000f70
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000046
FS: 00007f3c9c7ea700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3a857ff8 CR3: 000000008fe48000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:306
rcu_read_lock include/linux/rcupdate.h:747 [inline]
advance_sched+0x6ce/0x940 net/sched/sch_taprio.c:753
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_emit_next_record+0xb70/0xda0 kernel/printk/printk.c:2740
Code: 00 48 8b 5c 24 68 44 0f b6 74 24 1f 4d 85 e4 75 07 e8 84 05 1c 00 eb 06 e8 7d 05 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <41> c7 44 1d 00 00 00 00 00 49 c7 44 1d 0a 00 00 00 00 49 c7 44 1d
RSP: 0018:ffffc9000675e2a0 EFLAGS: 00000283
RAX: ffffffff816dbff3 RBX: 1ffff92000cebc68 RCX: 0000000000040000
RDX: ffffc90004a68000 RSI: 000000000002a085 RDI: 000000000002a086
RBP: ffffc9000675e550 R08: ffffffff816dbfc9 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000200
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc9000675e5c0
console_unlock+0x278/0x6e0 kernel/printk/printk.c:2860
vprintk_emit+0xd1/0x1f0 kernel/printk/printk.c:2268
_printk+0xd1/0x111 kernel/printk/printk.c:2289
__nla_validate_parse+0x229d/0x2b70 lib/nlattr.c:615
__nla_parse+0x3c/0x50 lib/nlattr.c:700
nla_parse_nested_deprecated include/net/netlink.h:1248 [inline]
tcf_skbedit_init+0x188/0x11c0 net/sched/act_skbedit.c:137
tcf_action_init_1+0x55c/0x840 net/sched/act_api.c:1398
tcf_action_init+0x34c/0x9a0 net/sched/act_api.c:1463
tcf_action_add net/sched/act_api.c:1987 [inline]
tc_ctl_action+0x48e/0xd10 net/sched/act_api.c:2046
rtnetlink_rcv_msg+0x776/0xf00 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2524
netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1902
sock_sendmsg_nosec net/socket.c:716 [inline]
sock_sendmsg net/socket.c:736 [inline]
____sys_sendmsg+0x59e/0x8f0 net/socket.c:2482
___sys_sendmsg net/socket.c:2536 [inline]
__sys_sendmsg+0x2a9/0x390 net/socket.c:2565
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+0x63/0xcd
RIP: 0033:0x7f3c9ba8c169
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:00007f3c9c7ea168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3c9bbabf80 RCX: 00007f3c9ba8c169
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f3c9bae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc715f061f R14: 00007f3c9c7ea300 R15: 0000000000022000
</TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g78557 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=114608
rcu: rcu_preempt kthread starved for 10502 jiffies! g78557 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:26712 pid:16 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x132c/0x4330 kernel/sched/core.c:6554
schedule+0xbf/0x180 kernel/sched/core.c:6630
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x2c2/0x1010 kernel/rcu/tree.c:1661
rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1860
kthread+0x26e/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 16002 Comm: syz-executor.5 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
RIP: 0010:check_preemption_disabled+0x27/0x110 lib/smp_processor_id.c:16
Code: 8b eb 00 41 57 41 56 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 1d 68 39 7f 75 65 8b 05 11 8f 7f 75 <a9> ff ff ff 7f 74 22 65 48 8b 04 25 28 00 00 00 48 3b 44 24 08 0f
RSP: 0018:ffffc90000007b48 EFLAGS: 00000086
RAX: 0000000000010001 RBX: 0000000000000000 RCX: ffffffff8169e947
RDX: 0000000000000000 RSI: ffffffff8aebdd80 RDI: ffffffff8b3cc8a0
RBP: ffffc90000007cb0 R08: dffffc0000000000 R09: fffffbfff1ca62be
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000f7c
R13: 0000000000000046 R14: ffffc90000007c30 R15: dffffc0000000000
FS: 00007f3c9c7ea700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3a857ff8 CR3: 000000008fe48000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
lockdep_recursion_inc kernel/locking/lockdep.c:462 [inline]
lock_release+0x19e/0xa20 kernel/locking/lockdep.c:5688
rcu_read_unlock include/linux/rcupdate.h:780 [inline]
advance_sched+0x7d4/0x940 net/sched/sch_taprio.c:755
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_emit_next_record+0xb70/0xda0 kernel/printk/printk.c:2740
Code: 00 48 8b 5c 24 68 44 0f b6 74 24 1f 4d 85 e4 75 07 e8 84 05 1c 00 eb 06 e8 7d 05 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <41> c7 44 1d 00 00 00 00 00 49 c7 44 1d 0a 00 00 00 00 49 c7 44 1d
RSP: 0018:ffffc9000675e2a0 EFLAGS: 00000283
RAX: ffffffff816dbff3 RBX: 1ffff92000cebc68 RCX: 0000000000040000
RDX: ffffc90004a68000 RSI: 000000000002a085 RDI: 000000000002a086
RBP: ffffc9000675e550 R08: ffffffff816dbfc9 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000200
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc9000675e5c0
console_unlock+0x278/0x6e0 kernel/printk/printk.c:2860
vprintk_emit+0xd1/0x1f0 kernel/printk/printk.c:2268
_printk+0xd1/0x111 kernel/printk/printk.c:2289
__nla_validate_parse+0x229d/0x2b70 lib/nlattr.c:615
__nla_parse+0x3c/0x50 lib/nlattr.c:700
nla_parse_nested_deprecated include/net/netlink.h:1248 [inline]
tcf_skbedit_init+0x188/0x11c0 net/sched/act_skbedit.c:137
tcf_action_init_1+0x55c/0x840 net/sched/act_api.c:1398
tcf_action_init+0x34c/0x9a0 net/sched/act_api.c:1463
tcf_action_add net/sched/act_api.c:1987 [inline]
tc_ctl_action+0x48e/0xd10 net/sched/act_api.c:2046
rtnetlink_rcv_msg+0x776/0xf00 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2524
netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1902
sock_sendmsg_nosec net/socket.c:716 [inline]
sock_sendmsg net/socket.c:736 [inline]
____sys_sendmsg+0x59e/0x8f0 net/socket.c:2482
___sys_sendmsg net/socket.c:2536 [inline]
__sys_sendmsg+0x2a9/0x390 net/socket.c:2565
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+0x63/0xcd
RIP: 0033:0x7f3c9ba8c169
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:00007f3c9c7ea168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3c9bbabf80 RCX: 00007f3c9ba8c169
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f3c9bae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc715f061f R14: 00007f3c9c7ea300 R15: 0000000000022000
</TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [kworker/u4:45:11458]
Modules linked in:
irq event stamp: 37688056
hardirqs last enabled at (37688055): [<ffffffff8aa00cc6>] asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
hardirqs last disabled at (37688056): [<ffffffff8a82baea>] sysvec_apic_timer_interrupt+0xa/0xb0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (37637460): [<ffffffff8153c6d5>] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last enabled at (37637460): [<ffffffff8153c6d5>] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
softirqs last disabled at (37637423): [<ffffffff8153c6d5>] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last disabled at (37637423): [<ffffffff8153c6d5>] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
CPU: 1 PID: 11458 Comm: kworker/u4:45 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:413 [inline]
RIP: 0010:smp_call_function_many_cond+0x1f62/0x33d0 kernel/smp.c:987
Code: 2f 44 89 ee 83 e6 01 31 ff e8 5a 0c 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 e5 08 0b 00 e9 1b ff ff ff f3 90 <42> 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe ff ff
RSP: 0018:ffffc9001d10f5a0 EFLAGS: 00000293
RAX: ffffffff817ebcad RBX: 1ffff11017308415 RCX: ffff8880444a9dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9001d10f980 R08: ffffffff817ebc76 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b98420a8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcbaa34f718 CR3: 000000000cc8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1155
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1316 [inline]
text_poke_bp_batch+0x2bb/0x940 arch/x86/kernel/alternative.c:1516
text_poke_flush arch/x86/kernel/alternative.c:1707 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1714
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate+0xbf/0x480 mm/kfence/core.c:804
process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2289
worker_thread+0xa5f/0x1210 kernel/workqueue.c:2436
kthread+0x26e/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 16002 Comm: syz-executor.5 Not tainted 6.1.30-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
RIP: 0010:hlock_class kernel/locking/lockdep.c:240 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4730 [inline]
RIP: 0010:__lock_acquire+0x49f/0x1f80 kernel/locking/lockdep.c:5006
Code: 00 44 89 33 44 89 fb 48 89 d8 48 c1 e8 06 48 8d 3c c5 20 82 28 90 be 08 00 00 00 e8 ab 40 76 00 48 0f a3 1d 83 b4 be 0e 73 25 <48> 8d 04 5b 48 c1 e0 06 48 8d 98 20 e1 f7 8f 48 ba 00 00 00 00 00
RSP: 0018:ffffc90000007920 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8169cd95
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90288220
RBP: ffff88803e2ea884 R08: dffffc0000000000 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803e2ea898
R13: ffff88803e2e9dc0 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f3c9c7ea700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff3a857ff8 CR3: 000000008fe48000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5669
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
debug_object_activate+0x16b/0x860 lib/debugobjects.c:697
debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
debug_activate kernel/time/hrtimer.c:475 [inline]
enqueue_hrtimer+0x30/0x390 kernel/time/hrtimer.c:1084
__run_hrtimer kernel/time/hrtimer.c:1702 [inline]
__hrtimer_run_queues+0x728/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:console_emit_next_record+0xb70/0xda0 kernel/printk/printk.c:2740
Code: 00 48 8b 5c 24 68 44 0f b6 74 24 1f 4d 85 e4 75 07 e8 84 05 1c 00 eb 06 e8 7d 05 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <41> c7 44 1d 00 00 00 00 00 49 c7 44 1d 0a 00 00 00 00 49 c7 44 1d
RSP: 0018:ffffc9000675e2a0 EFLAGS: 00000283
RAX: ffffffff816dbff3 RBX: 1ffff92000cebc68 RCX: 0000000000040000
RDX: ffffc90004a68000 RSI: 000000000002a085 RDI: 000000000002a086
RBP: ffffc9000675e550 R08: ffffffff816dbfc9 R09: fffffbfff2051045
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000200
R13: dffffc0000000000 R14: 0000000000000001 R15: ffffc9000675e5c0
console_unlock+0x278/0x6e0 kernel/printk/printk.c:2860
vprintk_emit+0xd1/0x1f0 kernel/printk/printk.c:2268
_printk+0xd1/0x111 kernel/printk/printk.c:2289
__nla_validate_parse+0x229d/0x2b70 lib/nlattr.c:615
__nla_parse+0x3c/0x50 lib/nlattr.c:700
nla_parse_nested_deprecated include/net/netlink.h:1248 [inline]
tcf_skbedit_init+0x188/0x11c0 net/sched/act_skbedit.c:137
tcf_action_init_1+0x55c/0x840 net/sched/act_api.c:1398
tcf_action_init+0x34c/0x9a0 net/sched/act_api.c:1463
tcf_action_add net/sched/act_api.c:1987 [inline]
tc_ctl_action+0x48e/0xd10 net/sched/act_api.c:2046
rtnetlink_rcv_msg+0x776/0xf00 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x1cd/0x410 net/netlink/af_netlink.c:2524
netlink_unicast_kernel net/netlink/af_netlink.c:1328 [inline]
netlink_unicast+0x7bf/0x990 net/netlink/af_netlink.c:1354
netlink_sendmsg+0xa26/0xd60 net/netlink/af_netlink.c:1902
sock_sendmsg_nosec net/socket.c:716 [inline]
sock_sendmsg net/socket.c:736 [inline]
____sys_sendmsg+0x59e/0x8f0 net/socket.c:2482
___sys_sendmsg net/socket.c:2536 [inline]
__sys_sendmsg+0x2a9/0x390 net/socket.c:2565
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+0x63/0xcd
RIP: 0033:0x7f3c9ba8c169
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:00007f3c9c7ea168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3c9bbabf80 RCX: 00007f3c9ba8c169
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003
RBP: 00007f3c9bae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc715f061f R14: 00007f3c9c7ea300 R15: 0000000000022000
</TASK>
---
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syzbot
Sep 3, 2023, 10:37:41 PM9/3/23
to syzkaller...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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