watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz-executor191:5940] Modules linked in: CPU: 0 PID: 5940 Comm: syz-executor191 Not tainted 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__sanitizer_cov_trace_pc+0x5c/0x60 kernel/kcov.c:207 Code: 38 0b 00 00 83 fa 02 75 21 48 8b 91 40 0b 00 00 48 8b 32 48 8d 7e 01 8b 89 3c 0b 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a <5d> c3 66 90 55 48 89 e5 4c 8b 45 08 65 48 8b 15 90 4b 92 7e 65 8b RSP: 0018:ffffc900009e78d0 EFLAGS: 00000293 RAX: ffffffff81657d2b RBX: 1ffff1103ee276cd RCX: ffff8881119d3b40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900009e78d0 R08: ffffffff81657cfa R09: fffffbfff0d49e1d R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 R13: ffff8881f713b668 R14: ffff8881f7038280 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0f3b130110 CR3: 000000000680f000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: csd_lock_wait kernel/smp.c:440 [inline] smp_call_function_many_cond+0x85b/0x9b0 kernel/smp.c:969 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1135 native_flush_tlb_multi+0x141/0x210 __flush_tlb_multi arch/x86/include/asm/paravirt.h:87 [inline] flush_tlb_multi arch/x86/mm/tlb.c:900 [inline] flush_tlb_mm_range+0x223/0x310 arch/x86/mm/tlb.c:986 tlb_flush arch/x86/include/asm/tlb.h:23 [inline] tlb_flush_mmu_tlbonly+0x1b7/0x420 include/asm-generic/tlb.h:430 tlb_flush_mmu mm/mmu_gather.c:246 [inline] tlb_finish_mmu+0xd4/0x320 mm/mmu_gather.c:338 exit_mmap+0x3ef/0x6f0 mm/mmap.c:3211 __mmput+0x95/0x310 kernel/fork.c:1179 mmput+0x5b/0x170 kernel/fork.c:1202 exit_mm kernel/exit.c:552 [inline] do_exit+0xb9c/0x2ca0 kernel/exit.c:865 do_group_exit+0x141/0x310 kernel/exit.c:1000 __do_sys_exit_group kernel/exit.c:1011 [inline] __se_sys_exit_group kernel/exit.c:1009 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1009 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+0x61/0xcb RIP: 0033:0x7f0f3b0b3fc9 Code: Unable to access opcode bytes at RIP 0x7f0f3b0b3f9f. RSP: 002b:00007ffd52055c08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0f3b0b3fc9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007f0f3b12f2b0 R08: ffffffffffffffb8 R09: 0000000000000006 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0f3b12f2b0 R13: 0000000000000000 R14: 00007f0f3b12fd00 R15: 00007f0f3b085230