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kernel BUG at arch/x86/mm/physaddr.c:27!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 29980 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:27
Code: 67 fb 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 40 28 37 00 48 85 db 75 0d e8 a6 26 37 00 4c 89 e0 5b 5d 41 5c c3 e8 99 26 37 00 <0f> 0b e8 92 26 37 00 48 c7 c0 10 30 e7 89 48 ba 00 00 00 00 00 fc
RSP: 0018:ffff88823182f658 EFLAGS: 00010012
RAX: ffff88823181e080 RBX: 0000000000000000 RCX: ffffffff812b5e78
RDX: 0000000040000000 RSI: ffffffff812b5ed7 RDI: 0000000000000006
RBP: 0000000080000000 R08: 0000000000000000 R09: 0000000080000000
R10: 0000000000000006 R11: 0000000000000001 R12: 0000778000000000
R13: 000000000002a860 R14: 0000000000000000 R15: ffffffff89f18280
FS:  00007f52706e3700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f52706e36bc CR3: 0000000231fc4000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 build_cr3 arch/x86/include/asm/tlbflush.h:127 [inline]
 load_new_mm_cr3+0x113/0x200 arch/x86/mm/tlb.c:116
 switch_mm_irqs_off+0x986/0x1340 arch/x86/mm/tlb.c:396
 context_switch kernel/sched/core.c:2816 [inline]
 __schedule+0x7d4/0x2040 kernel/sched/core.c:3517
 preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:3641
 ___preempt_schedule+0x16/0x18
 __raw_spin_unlock include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock+0x3b/0x40 kernel/locking/spinlock.c:176
 spin_unlock include/linux/spinlock.h:369 [inline]
 zap_pte_range mm/memory.c:1407 [inline]
 zap_pmd_range mm/memory.c:1463 [inline]
 zap_pud_range mm/memory.c:1492 [inline]
 zap_p4d_range mm/memory.c:1513 [inline]
 unmap_page_range+0x1616/0x2c50 mm/memory.c:1534
 unmap_single_vma+0x198/0x300 mm/memory.c:1579
 unmap_vmas+0xa9/0x180 mm/memory.c:1609
 exit_mmap+0x2b9/0x530 mm/mmap.c:3093
 __mmput kernel/fork.c:1016 [inline]
 mmput+0x14e/0x4a0 kernel/fork.c:1037
 copy_process.part.0+0x57e4/0x8260 kernel/fork.c:2119
 copy_process kernel/fork.c:1710 [inline]
 _do_fork+0x22f/0xf30 kernel/fork.c:2219
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5271e12eb9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f52706e3168 EFLAGS: 00000246 ORIG_RAX: 0000000000000039
RAX: ffffffffffffffda RBX: 00007f5271f26370 RCX: 00007f5271e12eb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f5271e6d08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe0c3411bf R14: 00007f52706e3300 R15: 0000000000022000
Modules linked in:

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