ip6_tunnel: ip6gretap0 xmit: Local address not yet configured!
ip6_tunnel: ip6gretap0 xmit: Local address not yet configured!
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...!: (1 GPs behind) idle=c044/1/0x4000000000000000 softirq=54288/54289 fqs=0
rcu: (detected by 0, t=10502 jiffies, g=45897, q=900 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 13109 Comm: modprobe Not tainted 6.15.0-rc2-syzkaller-00282-gd861a5dbb960 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__lock_acquire+0x6a1/0xd80 kernel/locking/lockdep.c:5205
Code: 00 0f 84 c2 00 00 00 48 8b 3c 24 4c 89 f6 ba 08 00 00 00 e8 a1 2a 00 00 45 31 ed 85 c0 0f 84 7d 04 00 00 83 3d 7f 16 d5 18 00 <75> 13 48 63 44 24 10 48 0f a3 05 40 87 d1 12 0f 83 90 05 00 00 31
RSP: 0018:ffffc90000a08a60 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000008
RDX: 0000000000000008 RSI: ffff8880322a8b18 RDI: ffff8880322a8000
RBP: 00000000ffffffff R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880322a8b38
R13: 0000000000000000 R14: ffff8880322a8b18 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff88812509a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5430ba1270 CR3: 0000000029650000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd8/0x130 kernel/locking/spinlock.c:162
debug_object_deactivate+0x164/0x390 lib/debugobjects.c:873
debug_hrtimer_deactivate kernel/time/hrtimer.c:450 [inline]
debug_deactivate+0x1b/0x220 kernel/time/hrtimer.c:490
__run_hrtimer kernel/time/hrtimer.c:1729 [inline]
__hrtimer_run_queues+0x310/0xd40 kernel/time/hrtimer.c:1825
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1887
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:find_stack lib/stackdepot.c:553 [inline]
RIP: 0010:stack_depot_save_flags+0x1ba/0x940 lib/stackdepot.c:619
Code: 31 f6 4c 89 4c 24 10 e8 04 93 c4 ff 4c 8b 4c 24 10 44 8b 44 24 08 45 85 f6 75 66 4d 8b 6d 00 49 39 dd 74 5a 45 39 65 10 75 f1 <45> 39 4d 14 75 eb 31 c0 49 8b 0c c7 49 3b 4c c5 20 75 de 48 ff c0
RSP: 0018:ffffc90004ebf9d0 EFLAGS: 00000246
RAX: ffff88823ae00000 RBX: ffff88823b6053e0 RCX: 00000000008053e0
RDX: ffffc90004ebfa7c RSI: 0000000000000001 RDI: 00000000f3a6c46c
RBP: 0000000000000008 R08: 0000000000000001 R09: 0000000000000008
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000d598053e
R13: ffff888035b639a0 R14: 0000000000000cc0 R15: ffffc90004ebfa40
kasan_save_stack mm/kasan/common.c:48 [inline]
kasan_save_track+0x51/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:319 [inline]
__kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4161 [inline]
slab_alloc_node mm/slub.c:4210 [inline]
kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4217
getname_flags+0xb7/0x530 fs/namei.c:146
getname include/linux/fs.h:2852 [inline]
do_sys_openat2+0xbf/0x1d0 fs/open.c:1423
do_sys_open fs/open.c:1444 [inline]
__do_sys_openat fs/open.c:1460 [inline]
__se_sys_openat fs/open.c:1455 [inline]
__x64_sys_openat+0x249/0x2a0 fs/open.c:1455
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5430e4aa46
Code: 10 00 00 00 44 8b 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 0c f7 d8 89 05 0a 48 01 00 48 83 c8 ff c3 31
RSP: 002b:00007ffe3a4310e8 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffe3a431348 RCX: 00007f5430e4aa46
RDX: 0000000000080000 RSI: 00007ffe3a431160 RDI: 00000000ffffff9c
RBP: 00007ffe3a431150 R08: 0000000000080000 R09: 00007ffe3a431160
R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffe3a431160
R13: 0000000000000003 R14: 00007ffe3a43132f R15: 00000000ffffffff
rcu: rcu_preempt kthread starved for 10502 jiffies! g45897 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:26688 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_timeout+0x15b/0x2b0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2e1/0x1340 kernel/rcu/tree.c:2046
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2248
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 5506 Comm: dhcpcd Not tainted 6.15.0-rc2-syzkaller-00282-gd861a5dbb960 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x1bac/0x2d40 kernel/smp.c:885
Code: 03 84 c0 75 7e 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 68 dc 0b 00 41 83 e4 01 4c 8b 64 24 68 75 07 e8 18 d8 0b 00 eb 41 f3 90 <48> b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 75 11 41 f7 45 00
RSP: 0018:ffffc900015674c0 EFLAGS: 00000293
RAX: ffffffff81b6e2cd RBX: 1ffff110170e7e91 RCX: ffff888030119e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900015676c0 R08: ffffffff81b6e298 R09: 1ffffffff20bfcae
R10: dffffc0000000000 R11: fffffbfff20bfcaf R12: ffff8880b863ad08
R13: ffff8880b873f488 R14: ffff8880b863ad00 R15: 0000000000000001
FS: 00007f2742ca1740(0000) GS:ffff888124f9a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcd3b0b0a8 CR3: 000000003328c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1052
__flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
flush_tlb_multi arch/x86/mm/tlb.c:1275 [inline]
flush_tlb_mm_range+0xb8d/0x13f0 arch/x86/mm/tlb.c:1365
dup_mmap kernel/fork.c:765 [inline]
dup_mm kernel/fork.c:1734 [inline]
copy_mm+0x19de/0x22c0 kernel/fork.c:1786
copy_process+0x17de/0x3d10 kernel/fork.c:2429
kernel_clone+0x242/0x930 kernel/fork.c:2844
__do_sys_clone kernel/fork.c:2987 [inline]
__se_sys_clone kernel/fork.c:2971 [inline]
__x64_sys_clone+0x268/0x2e0 kernel/fork.c:2971
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2742d51a12
Code: 41 5d 41 5e 41 5f c3 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 e7 43 0f 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffcd3aea778 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 000055d773b2f801 RCX: 00007f2742d51a12
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007ffcd3b0ace8 R08: 0000000000000000 R09: 000055d773b2f810
R10: 00007f2742ca1a10 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 000055d773b2f844