general protection fault, probably for non-canonical address 0xdffffc00068b90aa: 0000 [#1] PREEMPT SMP KASAN
KASAN: probably user-memory-access in range [0x00000000345c8550-0x00000000345c8557]
CPU: 0 PID: 12197 Comm: systemd-udevd Not tainted 5.8.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:unlink_anon_vmas+0x63/0x830 mm/rmap.c:398
Code: 3c 02 00 0f 85 96 07 00 00 48 8b 44 24 10 48 8b 58 78 48 b8 00 00 00 00 00 fc ff df 48 8d 6b f0 48 89 da 49 89 df 48 c1 ea 03 <80> 3c 02 00 0f 85 5e 07 00 00 48 8b 03 48 39 5c 24 08 4c 8d 68 f0
RSP: 0018:ffffc90004ab7bc8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 00000000345c8550 RCX: ffffffff81a2e00c
RDX: 00000000068b90aa RSI: ffffffff81a8225b RDI: ffff88800013e778
RBP: 00000000345c8540 R08: 0000000000000001 R09: ffff888098a9e91f
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888013ef6eb0
R13: 00007f4828d6e000 R14: 00007f4828532000 R15: 00000000345c8550
FS:  00007f482b0668c0(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f62cfca160 CR3: 00000000a2d85000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 free_pgtables+0x1ab/0x2f0 mm/memory.c:412
 exit_mmap+0x2c0/0x510 mm/mmap.c:3163
 __mmput+0x122/0x470 kernel/fork.c:1093
 mmput+0x53/0x60 kernel/fork.c:1114
 exit_mm kernel/exit.c:482 [inline]
 do_exit+0xa8f/0x2a40 kernel/exit.c:792
 do_group_exit+0x125/0x310 kernel/exit.c:903
 __do_sys_exit_group kernel/exit.c:914 [inline]
 __se_sys_exit_group kernel/exit.c:912 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:912
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f4829eb6618
Code: Bad RIP value.
RSP: 002b:00007fffe90b99b8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fffe90b9a80 RCX: 00007f4829eb6618
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00007fffe90b9b30 R08: 00000000000000e7 R09: fffffffffffffe50
R10: 00000000ffffffff R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000003 R15: 000000000000000e
Modules linked in:
---[ end trace 6b92453fc5136fbd ]---
RIP: 0010:unlink_anon_vmas+0x63/0x830 mm/rmap.c:398
Code: 3c 02 00 0f 85 96 07 00 00 48 8b 44 24 10 48 8b 58 78 48 b8 00 00 00 00 00 fc ff df 48 8d 6b f0 48 89 da 49 89 df 48 c1 ea 03 <80> 3c 02 00 0f 85 5e 07 00 00 48 8b 03 48 39 5c 24 08 4c 8d 68 f0
RSP: 0018:ffffc90004ab7bc8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 00000000345c8550 RCX: ffffffff81a2e00c
RDX: 00000000068b90aa RSI: ffffffff81a8225b RDI: ffff88800013e778
RBP: 00000000345c8540 R08: 0000000000000001 R09: ffff888098a9e91f
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888013ef6eb0
R13: 00007f4828d6e000 R14: 00007f4828532000 R15: 00000000345c8550
FS:  00007f482b0668c0(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc2d7bd000 CR3: 00000000a2d85000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400