RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055557034e7d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 00000000000ef4b1 R15: 00007fff2ebe41b0 watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz-executor:20158] Modules linked in: irq event stamp: 3406922 hardirqs last enabled at (3406921): [] irqentry_exit+0x1dd/0x8c0 kernel/entry/common.c:219 hardirqs last disabled at (3406922): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1056 softirqs last enabled at (3406914): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last enabled at (3406914): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last enabled at (3406914): [] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723 softirqs last disabled at (3406759): [] __do_softirq kernel/softirq.c:656 [inline] softirqs last disabled at (3406759): [] invoke_softirq kernel/softirq.c:496 [inline] softirqs last disabled at (3406759): [] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:723 CPU: 1 UID: 0 PID: 20158 Comm: syz-executor Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline] RIP: 0010:smp_call_function_many_cond+0xe02/0x15e0 kernel/smp.c:877 Code: 10 4c 89 74 24 10 49 89 d5 48 89 d5 48 89 54 24 18 49 c1 ed 03 83 e5 07 4d 01 e5 83 c5 03 e8 e5 5d 0c 00 f3 90 41 0f b6 45 00 <40> 38 c5 7c 08 84 c0 0f 85 b6 05 00 00 8b 43 08 31 ff 83 e0 01 41 RSP: 0018:ffffc9000be8f720 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b8443020 RCX: ffffffff81b28aa1 RDX: ffff88801d73bd00 RSI: ffffffff81b28a7b RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffed1017088605 R14: 0000000000000001 R15: 0000000000000000 FS: 000055557034e500(0000) GS:ffff8881249f6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f35ebd156c0 CR3: 0000000069276000 CR4: 0000000000350ef0 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1043 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline] flush_tlb_multi arch/x86/mm/tlb.c:1382 [inline] flush_tlb_mm_range+0x2f0/0x12c0 arch/x86/mm/tlb.c:1472 dup_mmap+0xd04/0x20e0 mm/mmap.c:1866 dup_mm kernel/fork.c:1529 [inline] copy_mm kernel/fork.c:1581 [inline] copy_process+0x3b9f/0x7430 kernel/fork.c:2221 kernel_clone+0xfc/0x910 kernel/fork.c:2651 __do_sys_clone+0xce/0x120 kernel/fork.c:2792 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f35eaf85e93 Code: 1f 84 00 00 00 00 00 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 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007fff2ebe4018 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f35eaf85e93 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055557034e7d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 00000000000ef4b1 R15: 00007fff2ebe41b0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 24321 Comm: syz.8.6240 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:rcu_read_lock include/linux/rcupdate.h:868 [inline] RIP: 0010:advance_sched+0x949/0xc80 net/sched/sch_taprio.c:991 Code: c8 8c c6 05 32 12 f2 06 01 e8 03 44 1a f8 e9 a7 fd ff ff e8 09 94 3f f8 e8 54 bd 23 f8 31 ff 89 c3 89 c6 e8 39 8e 3f f8 84 db <0f> 85 63 fd ff ff e8 ec 93 3f f8 e8 e7 52 f7 01 31 ff 89 c3 89 c6 RSP: 0018:ffffc90000007d90 EFLAGS: 00000002 RAX: 0000000080010001 RBX: 0000000000000001 RCX: ffffffff897f5467 RDX: ffff888026081e80 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff888055b1b400 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: ffff8880260829b0 R12: 18962e24dc000000 R13: 18962e24dc000000 R14: 0000000000000002 R15: ffff888055b1bc10 FS: 00007f7b5e34a6c0(0000) GS:ffff8881248f6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000240 CR3: 0000000077ce9000 CR4: 0000000000350ef0 Call Trace: __run_hrtimer kernel/time/hrtimer.c:1777 [inline] __hrtimer_run_queues+0x202/0xc40 kernel/time/hrtimer.c:1841 hrtimer_interrupt+0x397/0x8e0 kernel/time/hrtimer.c:1903 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1045 [inline] __sysvec_apic_timer_interrupt+0x10b/0x3c0 arch/x86/kernel/apic/apic.c:1062 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:csd_lock_wait kernel/smp.c:342 [inline] RIP: 0010:smp_call_function_many_cond+0xdfd/0x15e0 kernel/smp.c:877 Code: 57 48 8b 54 24 10 4c 89 74 24 10 49 89 d5 48 89 d5 48 89 54 24 18 49 c1 ed 03 83 e5 07 4d 01 e5 83 c5 03 e8 e5 5d 0c 00 f3 90 <41> 0f b6 45 00 40 38 c5 7c 08 84 c0 0f 85 b6 05 00 00 8b 43 08 31 RSP: 0018:ffffc9000baefb40 EFLAGS: 00000283 RAX: 00000000000050e6 RBX: ffff8880b8540e00 RCX: ffffc90019fcb000 RDX: 0000000000080000 RSI: ffffffff81b28a7b RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: ffff8880260829b0 R12: dffffc0000000000 R13: ffffed10170a81c1 R14: 0000000000000001 R15: 0000000000000001 clock_was_set+0x642/0x870 kernel/time/hrtimer.c:969 do_settimeofday64+0x364/0x550 kernel/time/timekeeping.c:1460 do_sys_settimeofday64+0x1dc/0x260 kernel/time/time.c:195 __do_sys_clock_settime kernel/time/posix-timers.c:1131 [inline] __se_sys_clock_settime kernel/time/posix-timers.c:1115 [inline] __x64_sys_clock_settime+0x1c1/0x2a0 kernel/time/posix-timers.c:1115 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7b5d58f749 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:00007f7b5e34a038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 RAX: ffffffffffffffda RBX: 00007f7b5d7e5fa0 RCX: 00007f7b5d58f749 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000000 RBP: 00007f7b5d613f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7b5d7e6038 R14: 00007f7b5d7e5fa0 R15: 00007ffe800fc368