RBP: 00007fb3bb010a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb3bb1b5fa0 R15: 00007ffce14af428 watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [syz.4.716:7843] Modules linked in: irq event stamp: 787232 hardirqs last enabled at (787231): [] irqentry_exit+0x3b/0x90 kernel/entry/common.c:357 hardirqs last disabled at (787232): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1049 softirqs last enabled at (787230): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (787230): [] handle_softirqs+0x5be/0x8e0 kernel/softirq.c:607 softirqs last disabled at (787209): [] __do_softirq kernel/softirq.c:613 [inline] softirqs last disabled at (787209): [] invoke_softirq kernel/softirq.c:453 [inline] softirqs last disabled at (787209): [] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680 CPU: 1 UID: 0 PID: 7843 Comm: syz.4.716 Not tainted 6.15.0-rc2-syzkaller-00400-g3088d26962e8 #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+0x4a5/0x1290 kernel/smp.c:885 Code: 89 ee e8 be 12 0c 00 85 ed 74 48 48 8b 44 24 20 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 5d 17 0c 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 de 0b 00 00 8b 43 08 31 RSP: 0018:ffffc9001e7afc10 EFLAGS: 00000246 RAX: 0000000000080000 RBX: ffff8880b84415e0 RCX: ffffc9000d03a000 RDX: 0000000000080000 RSI: ffffffff81af2783 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10170882bd R13: 0000000000000001 R14: dffffc0000000000 R15: ffff8880b853b180 FS: 00007fb3bbd826c0(0000) GS:ffff888124ab9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000003c80 CR3: 0000000054726000 CR4: 0000000000350ef0 Call Trace: clock_was_set+0x642/0x870 kernel/time/hrtimer.c:976 do_settimeofday64+0x304/0x4b0 kernel/time/timekeeping.c:1381 do_sys_settimeofday64+0x1dc/0x260 kernel/time/time.c:195 __do_sys_clock_settime kernel/time/posix-timers.c:1140 [inline] __se_sys_clock_settime kernel/time/posix-timers.c:1124 [inline] __x64_sys_clock_settime+0x1c1/0x2a0 kernel/time/posix-timers.c:1124 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb3baf8e169 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:00007fb3bbd82038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 RAX: ffffffffffffffda RBX: 00007fb3bb1b5fa0 RCX: 00007fb3baf8e169 RDX: 0000000000000000 RSI: 0000200000003c80 RDI: 0000000000000000 RBP: 00007fb3bb010a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb3bb1b5fa0 R15: 00007ffce14af428 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 7819 Comm: syz.3.710 Not tainted 6.15.0-rc2-syzkaller-00400-g3088d26962e8 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] RIP: 0010:_raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162 Code: 39 bf 01 00 00 00 e8 72 45 16 f6 ff 74 24 10 48 8d 7b 18 45 31 c9 31 c9 41 b8 01 00 00 00 31 d2 31 f6 e8 b6 36 25 f6 48 89 df 5e 7f 25 f6 58 48 89 e8 5b 5d e9 de 57 9d f5 e8 be 1b 50 f6 eb RSP: 0018:ffffc90000007d00 EFLAGS: 00000082 RAX: 0000000000000000 RBX: ffffffff9add7528 RCX: ffffffff93ad6ce0 RDX: 0000000000000000 RSI: ffffffff8dbc61ff RDI: ffffffff9add7528 RBP: 0000000000000012 R08: 97064f26aa3bd169 R09: 0000000000000001 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88807ee25340 R14: ffffffff9add7520 R15: 1ffff92000000fa8 FS: 0000000000000000(0000) GS:ffff8881249b9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555588e28588 CR3: 000000005fc9c000 CR4: 0000000000350ef0 Call Trace: debug_object_activate+0x14c/0x4c0 lib/debugobjects.c:818 debug_hrtimer_activate kernel/time/hrtimer.c:445 [inline] debug_activate kernel/time/hrtimer.c:484 [inline] enqueue_hrtimer+0x23/0x3b0 kernel/time/hrtimer.c:1088 __run_hrtimer kernel/time/hrtimer.c:1778 [inline] __hrtimer_run_queues+0x8ff/0xad0 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x397/0x8e0 kernel/time/hrtimer.c:1887 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x10b/0x3f0 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210 Code: 16 62 54 00 48 89 df 5b e9 3d c0 59 00 be 03 00 00 00 5b e9 92 31 12 03 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 34 24 65 48 8b 15 28 31 eb 11 65 8b 05 39 31 eb RSP: 0018:ffffc9000d9c7608 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff8205e144 RDX: ffff8880264d1e00 RSI: ffffffff8205e155 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 00000000ff000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffffc9000d9c7780 R14: dffffc0000000000 R15: 00000000000001c4 zap_present_folio_ptes mm/memory.c:1527 [inline] zap_present_ptes mm/memory.c:1586 [inline] do_zap_pte_range mm/memory.c:1687 [inline] zap_pte_range mm/memory.c:1731 [inline] zap_pmd_range mm/memory.c:1823 [inline] zap_pud_range mm/memory.c:1852 [inline] zap_p4d_range mm/memory.c:1873 [inline] unmap_page_range+0x1b5d/0x4320 mm/memory.c:1894 unmap_single_vma+0x194/0x2a0 mm/memory.c:1940 unmap_vmas+0x22c/0x490 mm/memory.c:1984 exit_mmap+0x1b9/0xb90 mm/mmap.c:1284 __mmput+0x12a/0x410 kernel/fork.c:1379 mmput+0x62/0x70 kernel/fork.c:1401 exit_mm kernel/exit.c:589 [inline] do_exit+0x9d1/0x2c30 kernel/exit.c:940 do_group_exit+0xd3/0x2a0 kernel/exit.c:1102 get_signal+0x2673/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd8a6b8e169 Code: Unable to access opcode bytes at 0x7fd8a6b8e13f. RSP: 002b:00007fd8a7a8a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fd8a6db5fa8 RCX: 00007fd8a6b8e169 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd8a6db5fa8 RBP: 00007fd8a6db5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd8a6db5fac R13: 0000000000000000 R14: 00007ffd2638f290 R15: 00007ffd2638f378