INFO: rcu detected stall in sctp_generate_timeout

Kernel	Title	Repro	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: rcu detected stall in sctp_generate_timeout_event net			1	1265d	1265d	0/28	auto-closed as invalid on 2022/02/03 11:46
upstream	INFO: rcu detected stall in sctp_generate_timeout_event (2) sctp			1	290d	290d	0/28	auto-obsoleted due to no activity on 2024/11/05 06:45
linux-4.19	BUG: soft lockup in sctp_generate_timeout_event	C	error	4	1228d	1403d	0/1	upstream: reported C repro on 2021/07/21 02:50
upstream	BUG: soft lockup in sctp_generate_timeout_event net			1	23d	22d	0/28	upstream: reported on 2025/05/02 07:37

rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2797 jiffies s: 1409 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 3748 Comm: syz.0.12 Not tainted 6.1.112-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:kasan_check_range+0x5/0x290 mm/kasan/generic.c:188 Code: c7 e8 2f 38 c5 08 31 c0 c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 cc cc cc cc cc cc cc cc cc cc cc cc 55 41 57 41 56 <53> b0 01 48 85 f6 0f 84 9a 01 00 00 48 89 fd 48 01 f5 0f 82 5a 02 RSP: 0018:ffffc90000006b78 EFLAGS: 00000046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a0fa2 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e99f968 RBP: 0000000000000000 R08: ffffffff817a0f7e R09: fffffbfff2eb6a55 R10: 0000000000000000 R11: dffffc0000000001 R12: 00000027c6978b74 R13: ffff8880b8e2a540 R14: ffff8880b8e2a4c0 R15: dffffc0000000000 FS: 00007fa16f1086c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4084d07ab8 CR3: 000000005823f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> instrument_atomic_read include/linux/instrumented.h:72 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] cpumask_test_cpu include/linux/cpumask.h:444 [inline] cpu_online include/linux/cpumask.h:1030 [inline] trace_hrtimer_cancel include/trace/events/timer.h:297 [inline] debug_deactivate+0x82/0x280 kernel/time/hrtimer.c:483 __run_hrtimer kernel/time/hrtimer.c:1657 [inline] __hrtimer_run_queues+0x334/0xe50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1815 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+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:lock_release+0x637/0xa20 kernel/locking/lockdep.c:5686 Code: 3c 3b 00 74 08 4c 89 f7 e8 16 82 77 00 f6 84 24 91 00 00 00 02 75 6f 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25 RSP: 0018:ffffc90000006f20 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 1ffff92000000df6 RCX: ffffc90000006f03 RDX: 0000000000000005 RSI: ffffffff8b0c14c0 RDI: ffffffff8b5d7180 RBP: ffffc90000007058 R08: dffffc0000000000 R09: fffffbfff1d33f2e R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000000df0 R13: 0000000000000246 R14: ffffc90000006fb0 R15: dffffc0000000000 rcu_lock_release include/linux/rcupdate.h:355 [inline] rcu_read_unlock include/linux/rcupdate.h:824 [inline] is_bpf_text_address+0x289/0x2a0 kernel/bpf/core.c:733 kernel_text_address+0x9f/0xd0 kernel/extable.c:125 __kernel_text_address+0x9/0x40 kernel/extable.c:79 unwind_get_return_address+0x49/0x80 arch/x86/kernel/unwind_orc.c:323 arch_stack_walk+0xf3/0x140 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 __kasan_slab_alloc+0x65/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737 slab_alloc_node mm/slub.c:3398 [inline] kmem_cache_alloc_node+0x136/0x310 mm/slub.c:3443 __alloc_skb+0xde/0x670 net/core/skbuff.c:505 alloc_skb include/linux/skbuff.h:1271 [inline] _sctp_make_chunk+0x58/0x450 net/sctp/sm_make_chunk.c:1443 sctp_make_control net/sctp/sm_make_chunk.c:1490 [inline] sctp_make_init+0x5f9/0x2840 net/sctp/sm_make_chunk.c:319 sctp_sf_t1_init_timer_expire+0x1eb/0x520 net/sctp/sm_statefuns.c:5927 sctp_do_sm+0x1ed/0x5c80 net/sctp/sm_sideeffect.c:1167 sctp_generate_timeout_event+0x226/0x350 net/sctp/sm_sideeffect.c:295 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504 expire_timers kernel/time/timer.c:1549 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1820 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571 __do_softirq kernel/softirq.c:605 [inline] invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:strlen+0x3f/0x60 lib/string.c:495 Code: 00 00 00 fc ff df 48 89 fb 49 89 c4 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01 00 <75> dd eb 13 89 d9 80 e1 07 38 c1 7c e5 48 89 df e8 1c 7a 41 f7 eb RSP: 0018:ffffc90004bd71d8 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff8b09aac1 RCX: 0000000004bd7203 RDX: 0000000000000000 RSI: ffff88802468cc78 RDI: ffffffff8b09aac0 RBP: ffffc90004bd7320 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffffffff R13: ffffffff8d1f72e0 R14: ffffffff8b09aac0 R15: dffffc0000000000 trace_event_get_offsets_lock_acquire include/trace/events/lock.h:24 [inline] perf_trace_lock_acquire+0x114/0x4a0 include/trace/events/lock.h:24 trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x544/0x5a0 kernel/locking/lockdep.c:5633 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] copy_pte_range mm/memory.c:1042 [inline] copy_pmd_range mm/memory.c:1177 [inline] copy_pud_range mm/memory.c:1214 [inline] copy_p4d_range mm/memory.c:1238 [inline] copy_page_range+0x1148/0x4660 mm/memory.c:1336 dup_mmap kernel/fork.c:696 [inline] dup_mm kernel/fork.c:1540 [inline] copy_mm+0xf42/0x1990 kernel/fork.c:1589 copy_process+0x19d5/0x4060 kernel/fork.c:2267 kernel_clone+0x222/0x920 kernel/fork.c:2682 __do_sys_clone kernel/fork.c:2823 [inline] __se_sys_clone kernel/fork.c:2807 [inline] __x64_sys_clone+0x231/0x280 kernel/fork.c:2807 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fa16e37dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa16f107fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fa16e535f80 RCX: 00007fa16e37dff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fa16e3f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa16e535f80 R15: 00007ffde06e0448 </TASK>

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/10/12 19:20	linux-6.1.y	aa4cd140bba5	084d8178	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-perf	INFO: rcu detected stall in sctp_generate_timeout_event

Crashes (1):

Assets (help?)