syzbot

RBP: 00007f2f391c52b0 R08: ffffffffffffffb8 R09: 00000000000000a0
R10: 00000000000000a0 R11: 0000000000000246 R12: 00007f2f391c52b0
R13: 0000000000000000 R14: 00007f2f391c5d20 R15: 00007f2f3911bf50
 </TASK>
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz-executor358:312]
Modules linked in:
CPU: 1 PID: 312 Comm: syz-executor358 Not tainted 6.1.75-syzkaller-00027-g77fec6cefe26 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:csd_lock_wait kernel/smp.c:453 [inline]
RIP: 0010:smp_call_function_many_cond+0x851/0x930 kernel/smp.c:998
Code: 3e 44 89 fe 83 e6 01 31 ff e8 0b 9e 09 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 0a e8 46 9a 09 00 e9 2f ff ff ff f3 90 <42> 0f b6 04 3b 84 c0 75 14 41 f7 06 01 00 00 00 0f 84 12 ff ff ff
RSP: 0018:ffffc90000f77860 EFLAGS: 00000293
RAX: ffffffff816bc3fc RBX: 1ffff1103ee07919 RCX: ffff88811b428000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000f77968 R08: ffffffff816bc3c5 R09: fffffbfff0dcdb58
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000800000000 R14: ffff8881f703c8c8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe76b54b58 CR3: 0000000006c0f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x80 kernel/smp.c:1166
 native_flush_tlb_multi+0x143/0x210
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:87 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:924 [inline]
 flush_tlb_mm_range+0x298/0x360 arch/x86/mm/tlb.c:1010
 tlb_flush arch/x86/include/asm/tlb.h:20 [inline]
 tlb_flush_mmu_tlbonly+0x1b7/0x420 include/asm-generic/tlb.h:430
 tlb_flush_mmu mm/mmu_gather.c:260 [inline]
 tlb_finish_mmu+0xe1/0x3f0 mm/mmu_gather.c:361
 exit_mmap+0x421/0x940 mm/mmap.c:3343
 __mmput+0x95/0x310 kernel/fork.c:1298
 mmput+0x56/0x170 kernel/fork.c:1321
 exit_mm kernel/exit.c:566 [inline]
 do_exit+0xb29/0x2b80 kernel/exit.c:862
 do_group_exit+0x21a/0x2d0 kernel/exit.c:1025
 __do_sys_exit_group kernel/exit.c:1036 [inline]
 __se_sys_exit_group kernel/exit.c:1034 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1034
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2f3914adb9
Code: Unable to access opcode bytes at 0x7f2f3914ad8f.
RSP: 002b:00007ffe76b54bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2f3914adb9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f2f391c52b0 R08: ffffffffffffffb8 R09: 00000000000000a0
R10: 00000000000000a0 R11: 0000000000000246 R12: 00007f2f391c52b0
R13: 0000000000000000 R14: 00007f2f391c5d20 R15: 00007f2f3911bf50
 </TASK>