swap_info_get: Bad swap file entry 10020000000524cc
BUG: Bad page map in process syz-executor1  pte:8000000149331000 pmd:1189ab067
addr:00000000f2d4368a vm_flags:100400fb anon_vma:          (null) mapping:000000002d6b88a9 index:1d3
file:kcov fault:          (null) mmap:kcov_mmap readpage:          (null)
CPU: 1 PID: 17552 Comm: syz-executor1 Not tainted 4.18.0-rc8+ #34
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x17c/0x1c0 lib/dump_stack.c:113
 print_bad_pte+0xcae/0xde0 mm/memory.c:775
 zap_pte_range mm/memory.c:1381 [inline]
 zap_pmd_range mm/memory.c:1436 [inline]
 zap_pud_range mm/memory.c:1465 [inline]
 zap_p4d_range mm/memory.c:1486 [inline]
 unmap_page_range+0x29ec/0x3b60 mm/memory.c:1507
 unmap_single_vma+0x445/0x5e0 mm/memory.c:1552
 unmap_vmas+0x241/0x370 mm/memory.c:1582
 exit_mmap+0x4d7/0x960 mm/mmap.c:3094
 __mmput+0x154/0x5f0 kernel/fork.c:994
 mmput+0xa7/0xe0 kernel/fork.c:1015
 exit_mm+0x6dd/0x790 kernel/exit.c:545
 do_exit+0xbf7/0x3890 kernel/exit.c:854
 do_group_exit+0x1a0/0x350 kernel/exit.c:970
 get_signal+0x1425/0x1ef0 kernel/signal.c:2468
 do_signal+0x120/0x2090 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline]
 prepare_exit_to_usermode+0x273/0x410 arch/x86/entry/common.c:197
 syscall_return_slowpath+0xdb/0x700 arch/x86/entry/common.c:268
 do_syscall_64+0x1ab/0x220 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x457089
Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007fd1283c8cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 0000000000930288 RCX: 0000000000457089
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000930288
RBP: 0000000000930280 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000093028c
R13: 0000000000a3fb9f R14: 00007fd1283c99c0 R15: 0000000000000003
BUG: Bad rss-counter state mm:000000007438e1da idx:0 val:1
BUG: Bad rss-counter state mm:000000007438e1da idx:2 val:-1
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.
sctp: [Deprecated]: syz-executor5 (pid 17768) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
kernel msg: ebtables bug: please report to author: Unknown flag for bitmask
sctp: [Deprecated]: syz-executor5 (pid 17779) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
kernel msg: ebtables bug: please report to author: Unknown flag for bitmask