BUG: Bad page map in process syz-executor6 pte:b8f45007 pmd:5d81f067 page:ffffea000455b9e0 count:1 mapcount:-1 mapping:0000000000000000 index:0x0 flags: 0x100000000000000() raw: 0100000000000000 dead000000000100 dead000000000200 0000000000000000 IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0x269b/0x2b20 net/netfilter/ipvs/ip_vs_ctl.c:2433 raw: 0000000000000000 0000000000000000 00000001fffffffe 0000000000000000 raw: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 page dumped because: bad pte addr:00000000f155dda4 vm_flags:100400fb anon_vma: (null) mapping:00000000c29a9013 index:8d file:kcov fault: (null) mmap:kcov_mmap readpage: (null) CPU: 1 PID: 8922 Comm: syz-executor6 Not tainted 4.19.0-rc1+ #39 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 get_signal+0x1425/0x1ef0 kernel/signal.c:2513 IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0x269b/0x2b20 net/netfilter/ipvs/ip_vs_ctl.c:2433 do_signal+0x11d/0x2060 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: 0033:0x457099 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:00007fc4be563cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00000000009300a8 RCX: 0000000000457099 RDX: 0000000000000058 RSI: 0000000000000081 RDI: 00000000009300ac RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000014 R11: 0000000000000246 R12: 00000000009300ac R13: 0000000000a3fb9f R14: 00007fc4be5649c0 R15: 0000000000000000 IPVS: ftp: loaded support on port[0] = 21 IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0x269b/0x2b20 net/netfilter/ipvs/ip_vs_ctl.c:2433 BUG: Bad rss-counter state mm:00000000c65198d2 idx:0 val:13 IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0x269b/0x2b20 net/netfilter/ipvs/ip_vs_ctl.c:2433 IPVS: ftp: loaded support on port[0] = 21 IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0x269b/0x2b20 net/netfilter/ipvs/ip_vs_ctl.c:2433 IPVS: ftp: loaded support on port[0] = 21 BUG: Bad page state in process syz-executor2 pfn:b8f45 page:ffffea000455b9e0 count:0 mapcount:-1 mapping:0000000000000000 index:0x0 flags: 0x100000000000000() raw: 0100000000000000 dead000000000100 dead000000000200 0000000000000000 raw: 0000000000000000 0000000000000000 00000000fffffffe 0000000000000000 raw: 0000000000000000 0000000000000000 0000000000000001 0000000000000000 page dumped because: nonzero mapcount Modules linked in: CPU: 1 PID: 8984 Comm: syz-executor2 Tainted: G B 4.19.0-rc1+ #39 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 bad_page+0x4fe/0x5f0 mm/page_alloc.c:548 free_pages_check_bad mm/page_alloc.c:923 [inline] free_pages_check mm/page_alloc.c:932 [inline] bulkfree_pcp_prepare mm/page_alloc.c:1063 [inline] free_pcppages_bulk+0x633/0x12b0 mm/page_alloc.c:1124 free_unref_page_commit+0x34d/0x4c0 mm/page_alloc.c:2778 free_unref_page_list+0x712/0x860 mm/page_alloc.c:2821 release_pages+0x1632/0x1650 mm/swap.c:792 free_pages_and_swap_cache+0x54b/0x570 mm/swap_state.c:319 tlb_flush_mmu_free mm/memory.c:250 [inline] tlb_flush_mmu+0x504/0x6b0 mm/memory.c:259 arch_tlb_finish_mmu mm/memory.c:274 [inline] tlb_finish_mmu+0x205/0x420 mm/memory.c:433 exit_mmap+0x519/0x940 mm/mmap.c:3095 __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 get_signal+0x1425/0x1ef0 kernel/signal.c:2513 do_signal+0x11d/0x2060 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: 0033:0x457099 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:00007f5618c51c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffff91 RBX: 00007f5618c526d4 RCX: 0000000000457099 RDX: 0000000000000010 RSI: 0000000020f6fff0 RDI: 0000000000000003 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cb968 R14: 00000000004c320c R15: 0000000000000000 IPVS: ftp: loaded support on port[0] = 21 input: syz1 as /devices/virtual/input/input167 input: syz1 as /devices/virtual/input/input168 input: syz1 as /devices/virtual/input/input169 input: syz1 as /devices/virtual/input/input170 input: syz1 as /devices/virtual/input/input171 input: syz1 as /devices/virtual/input/input172 input: syz1 as /devices/virtual/input/input173 input: syz1 as /devices/virtual/input/input174 bridge: RTM_NEWNEIGH with invalid state 0x0 bridge: RTM_NEWNEIGH with invalid state 0x0 bridge: RTM_NEWNEIGH with invalid state 0x0 bridge: RTM_NEWNEIGH with invalid state 0x0 bridge: RTM_NEWNEIGH with invalid state 0x0