*** Guest State *** CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7 BUG: sleeping function called from invalid context at arch/x86/mm/fault.c:1355 CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871 in_atomic(): 0, irqs_disabled(): 0, pid: 14007, name: syz-executor.5 CR3 = 0x0000000000000000 RSP = 0x0000000000000000 RIP = 0x0000000000000000 RFLAGS=0x00036ec7 DR7 = 0x0000000000000400 3 locks held by syz-executor.5/14007: Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000 #0: 000000002f0132a5 (&table[i].mutex){+.+.}, at: nfnl_lock net/netfilter/nfnetlink.c:62 [inline] #0: 000000002f0132a5 (&table[i].mutex){+.+.}, at: nfnetlink_rcv_msg+0x98d/0xf60 net/netfilter/nfnetlink.c:223 #1: 000000007f487c32 (rcu_read_lock){....}, at: ctnetlink_create_conntrack+0x199/0x12c0 net/netfilter/nf_conntrack_netlink.c:1929 CS: sel=0xf000, attr=0x0009b, limit=0x0000ffff, base=0x00000000ffff0000 #2: 0000000036b86379 (&mm->mmap_sem){++++}, at: __do_page_fault+0x3e2/0xde0 arch/x86/mm/fault.c:1341 Preemption disabled at: [] rcu_lockdep_current_cpu_online kernel/rcu/tree.c:1076 [inline] [] rcu_lockdep_current_cpu_online+0x32/0x1b0 kernel/rcu/tree.c:1068 DS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 SS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 ES: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 CPU: 1 PID: 14007 Comm: syz-executor.5 Not tainted 4.19.134-syzkaller #0 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+0x1fc/0x2fe lib/dump_stack.c:118 FS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6196 __do_page_fault+0x40d/0xde0 arch/x86/mm/fault.c:1355 GS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0010: (null) Code: Bad RIP value. RSP: 0018:ffff888042edf190 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90010603000 RDX: 1ffffffff135df4e RSI: ffff888042edf210 RDI: ffff888042edf260 RBP: ffff8880a6769600 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 00000000c85ba55e R12: 0000000000000000 GDTR: limit=0x0000ffff, base=0x0000000000000000 R13: 0000000000000001 R14: ffffffff89aefa38 R15: ffff888042edf210 LDTR: sel=0x0000, attr=0x00082, limit=0x0000ffff, base=0x0000000000000000 IDTR: limit=0x0000ffff, base=0x0000000000000000 TR: sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000 EFER = 0x0000000000000000 PAT = 0x0007040600070406 DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 Interruptibility = 00000000 ActivityState = 00000000 *** Host State *** RIP = 0xffffffff811affaf RSP = 0xffff88804e30f8c0 CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040 FSBase=00007fd5feade700 GSBase=ffff8880ae600000 TRBase=fffffe0000003000 BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 GDTBase=fffffe0000001000 IDTBase=fffffe0000000000 PGD 928b8067 P4D 928b8067 PUD 8bee7067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 1 PID: 14007 Comm: syz-executor.5 Tainted: G W 4.19.134-syzkaller #0 CR0=0000000080050033 CR3=000000009e07c000 CR4=00000000001426f0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Sysenter RSP=fffffe0000003000 CS:RIP=0010:ffffffff874013e0 RIP: 0010: (null) Code: Bad RIP value. EFER = 0x0000000000000d01 PAT = 0x0407050600070106 RSP: 0018:ffff888042edf190 EFLAGS: 00010246 *** Control State *** RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90010603000 RDX: 1ffffffff135df4e RSI: ffff888042edf210 RDI: ffff888042edf260 RBP: ffff8880a6769600 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 00000000c85ba55e R12: 0000000000000000 R13: 0000000000000001 R14: ffffffff89aefa38 R15: ffff888042edf210 PinBased=0000003f CPUBased=b5a06dfa SecondaryExec=000000e3 FS: 00007fb1664fc700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 EntryControls=0000d1ff ExitControls=002fefff CR2: ffffffffffffffd6 CR3: 0000000094e0c000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 Call Trace: nfnetlink_parse_nat net/netfilter/nf_nat_core.c:847 [inline] nfnetlink_parse_nat_setup+0x243/0x640 net/netfilter/nf_nat_core.c:884 VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000 ctnetlink_parse_nat_setup+0xb6/0x640 net/netfilter/nf_conntrack_netlink.c:1521 ctnetlink_setup_nat net/netfilter/nf_conntrack_netlink.c:1591 [inline] ctnetlink_create_conntrack+0x4bb/0x12c0 net/netfilter/nf_conntrack_netlink.c:1984 VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 reason=80000021 qualification=0000000000000000 IDTVectoring: info=00000000 errcode=00000000 ctnetlink_new_conntrack+0x4f3/0xde0 net/netfilter/nf_conntrack_netlink.c:2114 TSC Offset = 0xffffff49c754aa13 TPR Threshold = 0x00 nfnetlink_rcv_msg+0xc4f/0xf60 net/netfilter/nfnetlink.c:228 EPT pointer = 0x000000008b12801e Virtual processor ID = 0x0001 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 nfnetlink_rcv+0x1b2/0x41b net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6bb/0xc40 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:632 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c1f9 Code: 8d b6 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 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb1664fbc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000027a40 RCX: 000000000045c1f9 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c R13: 00007ffeb11f7a8f R14: 00007fb1664fc9c0 R15: 000000000078bf0c Modules linked in: CR2: 0000000000000000 *** Guest State *** CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7 CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871 CR3 = 0x0000000000000000 *** Guest State *** RSP = 0x0000000000000000 RIP = 0x0000000000000000 CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7 RFLAGS=0x00036ec7 DR7 = 0x0000000000000400 CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871 Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000 CS: sel=0xf000, attr=0x0009b, limit=0x0000ffff, base=0x00000000ffff0000 CR3 = 0x0000000000000000 RSP = 0x0000000000000000 RIP = 0x0000000000000000 DS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 RFLAGS=0x00036ec7 DR7 = 0x0000000000000400 SS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000 CS: sel=0xf000, attr=0x0009b, limit=0x0000ffff, base=0x00000000ffff0000 ES: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 DS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 FS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 SS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 GS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 ES: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 GDTR: limit=0x0000ffff, base=0x0000000000000000 FS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 LDTR: sel=0x0000, attr=0x00082, limit=0x0000ffff, base=0x0000000000000000 GS: sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000 IDTR: limit=0x0000ffff, base=0x0000000000000000 GDTR: limit=0x0000ffff, base=0x0000000000000000 TR: sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000 LDTR: sel=0x0000, attr=0x00082, limit=0x0000ffff, base=0x0000000000000000 EFER = 0x0000000000000000 PAT = 0x0007040600070406 IDTR: limit=0x0000ffff, base=0x0000000000000000 DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 Interruptibility = 00000000 ActivityState = 00000000 TR: sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000 EFER = 0x0000000000000000 PAT = 0x0007040600070406 *** Host State *** DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 Interruptibility = 00000000 ActivityState = 00000000 RIP = 0xffffffff811affaf RSP = 0xffff888043f7f8c0 CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040 *** Host State *** RIP = 0xffffffff811affaf RSP = 0xffff888050a578c0 FSBase=00007fd5feade700 GSBase=ffff8880ae700000 TRBase=fffffe0000034000 CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040 FSBase=00007f465bb9d700 GSBase=ffff8880ae700000 TRBase=fffffe0000003000 GDTBase=fffffe0000032000 IDTBase=fffffe0000000000 GDTBase=fffffe0000001000 IDTBase=fffffe0000000000 CR0=0000000080050033 CR3=000000009e07c000 CR4=00000000001426e0 CR0=0000000080050033 CR3=000000009634b000 CR4=00000000001426e0 Sysenter RSP=fffffe0000034000 CS:RIP=0010:ffffffff874013e0 Sysenter RSP=fffffe0000003000 CS:RIP=0010:ffffffff874013e0 EFER = 0x0000000000000d01 PAT = 0x0407050600070106 EFER = 0x0000000000000d01 PAT = 0x0407050600070106 *** Control State *** *** Control State *** PinBased=0000003f CPUBased=b5a06dfa SecondaryExec=000000e3 PinBased=0000003f CPUBased=b5a06dfa SecondaryExec=000000e3 EntryControls=0000d1ff ExitControls=002fefff EntryControls=0000d1ff ExitControls=002fefff ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000 VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000 VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 reason=80000021 qualification=0000000000000000 reason=80000021 qualification=0000000000000000 IDTVectoring: info=00000000 errcode=00000000 IDTVectoring: info=00000000 errcode=00000000 TSC Offset = 0xffffff48fd737905 TSC Offset = 0xffffff48f3454f36 TPR Threshold = 0x00 TPR Threshold = 0x00 EPT pointer = 0x000000009129e01e EPT pointer = 0x000000008b17e01e Virtual processor ID = 0x0001 Virtual processor ID = 0x0002 ---[ end trace 4304ca65307017c2 ]--- RIP: 0010: (null) Code: Bad RIP value. RSP: 0018:ffff888042edf190 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90010603000 RDX: 1ffffffff135df4e RSI: ffff888042edf210 RDI: ffff888042edf260 RBP: ffff8880a6769600 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 00000000c85ba55e R12: 0000000000000000 R13: 0000000000000001 R14: ffffffff89aefa38 R15: ffff888042edf210 FS: 00007fb1664fc700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f64c2de2248 CR3: 0000000094e0c000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400