BUG: Bad page map in process syz-executor7 pte:4590f007 pmd:10c037067 page:ffffea0001a165a0 count:0 mapcount:-1 mapping:0000000000000000 index:0x0 flags: 0x100000000000000() raw: 0100000000000000 ffffea0001a165a8 ffffea0001a165a8 0000000000000000 raw: 0000000000000000 0000000000000000 00000000fffffffe 0000000000000000 raw: 0000000000000000 0000000000000000 0000000000000001 0000000000000000 page dumped because: bad pte addr:000000008ad86bc0 vm_flags:100400fb anon_vma: (null) mapping:000000006ab56032 index:5e file:kcov fault: (null) mmap:kcov_mmap readpage: (null) CPU: 0 PID: 17075 Comm: syz-executor7 Not tainted 4.19.0-rc1+ #36 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+0x14b/0x190 lib/dump_stack.c:113 print_bad_pte+0xc47/0xd40 mm/memory.c:774 zap_pte_range mm/memory.c:1341 [inline] zap_pmd_range mm/memory.c:1441 [inline] zap_pud_range mm/memory.c:1470 [inline] zap_p4d_range mm/memory.c:1491 [inline] unmap_page_range+0x1ee7/0x4170 mm/memory.c:1512 unmap_single_vma+0x445/0x5e0 mm/memory.c:1557 unmap_vmas+0x251/0x380 mm/memory.c:1587 exit_mmap+0x4b7/0x940 mm/mmap.c:3093 __mmput+0x154/0x5f0 kernel/fork.c:1003 mmput+0xa7/0xe0 kernel/fork.c:1024 exit_mm+0x6dd/0x790 kernel/exit.c:546 do_exit+0xbf7/0x3890 kernel/exit.c:856 do_group_exit+0x1a0/0x350 kernel/exit.c:972 __do_sys_exit_group+0x21/0x30 kernel/exit.c:983 __se_sys_exit_group+0x14/0x20 kernel/exit.c:981 __x64_sys_exit_group+0x4c/0x50 kernel/exit.c:981 do_syscall_64+0x15b/0x220 arch/x86/entry/common.c:290 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:0000000000a3fda8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 0000000000457089 RDX: 0000000000410c41 RSI: fffffffffffffff7 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffffffffffff R09: 0000000000062028 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000005 R13: 0000000000062028 R14: 0000000000000139 R15: badc0ffeebadface BUG: Bad rss-counter state mm:0000000020477f86 idx:0 val:13 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready PANIC: double fault, error_code: 0x0 CPU: 0 PID: 17177 Comm: syz-executor3 Tainted: G B 4.19.0-rc1+ #36 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:get_cpu_entry_area+0x0/0x30 Code: a4 00 45 85 e4 79 ad e9 61 ff ff ff 49 89 d6 44 89 ff e8 83 a7 a4 00 89 c0 48 89 c1 48 c1 e1 20 48 09 c1 49 89 0e eb a0 90 90 <55> 48 89 e5 53 89 fb e8 f4 ac 49 00 48 63 c3 48 69 c8 00 b0 03 00 RSP: 0018:fffffe0000002000 EFLAGS: 00010093 RAX: 0000000000002150 RBX: 0000000000000088 RCX: 000000000000002e RDX: 0000780000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: fffffe0000002038 R08: 000000000006294c R09: 0000000000062979 R10: ffffffff88c00f48 R11: ffffffff88c00f48 R12: 0000000000000001 R13: fffffe0000002150 R14: 0000000000000001 R15: 0000000000000000 FS: 000000000241b940(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffe0000001ff8 CR3: 0000000112b80000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: kmsan_memmove_shadow+0x87/0xe0 mm/kmsan/kmsan.c:332 __msan_memmove+0xaa/0x130 mm/kmsan/kmsan_instr.c:376 fixup_bad_iret+0x85/0x110 arch/x86/kernel/traps.c:669 error_entry+0xe6/0xf0 arch/x86/entry/entry_64.S:1317 RIP: 0000:0xffffffffffffff92 Code: Bad RIP value. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 00000000009301e0 RBX: ffffffff88c00f48 RCX: 000000000000002d RDX: 0000000000000246 RSI: 0000000000a3fcf0 RDI: 0000000000000000 RBP: 00000000009301e0 R08: 00000000000003e8 R09: 00000000009301ec R10: 0000000000062979 R11: 000000000006294c R12: 00000000000003e8 R13: 00000000009301ec R14: 0000000000062979 R15: 000000000006294c