[ 152.746814][ T8589] bash (8589) used greatest stack depth: 22632 bytes left Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '[localhost]:25654' (ECDSA) to the list of known hosts. 2021/05/06 22:26:23 fuzzer started 2021/05/06 22:26:24 connecting to host at localhost:40577 2021/05/06 22:26:24 checking machine... 2021/05/06 22:26:24 checking revisions... 2021/05/06 22:26:24 testing simple program... syzkaller login: [ 159.633736][ T50] audit: type=1400 audit(1620339985.216:8): avc: denied { execmem } for pid=8643 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program executing program executing program executing program 2021/05/06 22:26:36 BUG: program execution failed: executor 0: exit status 67 SYZFAIL: wrong response packet (errno 16: Device or resource busy) loop exited with status 67 SYZFAIL: wrong response packet (errno 16: Device or resource busy) loop exited with status 67 VM DIAGNOSIS: 22:26:39 Registers: info registers vcpu 0 RAX=000000000002e2bd RBX=ffffffff8bcbc400 RCX=ffffffff89154521 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=0000000000000000 RSP=ffffffff8bc07e40 R8 =0000000000000001 R9 =ffff88802ca362cb R10=ffffed1005946c59 R11=0000000000000000 R12=fffffbfff1797880 R13=0000000000000000 R14=ffffffff8dc90790 R15=0000000000000000 RIP=ffffffff8917f68e RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88802ca00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00005570a9897b48 CR3=000000000bc8e000 CR4=00150ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00009fc0 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=ffffffffffffffffffffffffffffffff XMM01=00000000000000000000000000000000 XMM02=ffffffffffffffffffffffffffffffff XMM03=ffffffffffffffffffffffffffffffff XMM04=00005570a9889d800000000000000000 XMM05=000000010000000500005570a97d7820 XMM06=00000000000007e10000000000000000 XMM07=00000000000000000000000000000000 XMM08=0000000000000039333920ff01010100 XMM09=0000ffffff0000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=000000000002ca19 RBX=ffff888011c68080 RCX=ffffffff89154521 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=0000000000000001 RSP=ffffc9000044fdf8 R8 =0000000000000001 R9 =ffff88802cb362cb R10=ffffed1005966c59 R11=0000000000000000 R12=ffffed100238d010 R13=0000000000000001 R14=ffffffff8dc90790 R15=0000000000000000 RIP=ffffffff8917f68e RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88802cb00000 ffffffff 00c00000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe000003e000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe000003c000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=0000000000546f98 CR3=0000000015412000 CR4=00150ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=41c3352e5dea1a44b858334d7a9f9c34 XMM02=0d905b941f8da645a4662f07ac2549c5 XMM03=157a12fe2917d367efce08cfb3ac6ef7 XMM04=62e2e62ccb2a6cfc11dd6cafd2362e53 XMM05=bd9a33c95458eb8affed35dab96c22c8 XMM06=5aa9f083c8f397481ff77afdc4622532 XMM07=77087661eff5b3c57db17c68ff1999e7 XMM08=00000000000000000000000000000000 XMM09=cf2a35d60263a1d6d85351d6ca62c1d6 XMM10=00000000000000000000000000000000 XMM11=ca62c1d6ca62c1d6ca62c1d6ca62c1d6 XMM12=00000042000000420000004200000042 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 2 RAX=0000000000035ba5 RBX=ffff888011c6a0c0 RCX=ffffffff89154521 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=0000000000000002 RSP=ffffc9000045fdf8 R8 =0000000000000001 R9 =ffff88802cc362cb R10=ffffed1005986c59 R11=0000000000000000 R12=ffffed100238d418 R13=0000000000000002 R14=ffffffff8dc90790 R15=0000000000000000 RIP=ffffffff8917f68e RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88802cc00000 ffffffff 00c00000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe0000079000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000077000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007ffc25a55000 CR3=0000000045491000 CR4=00150ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=65203a64656c696166206e6f69747563 XMM02=2074697865203a3020726f7475636578 XMM03=4941465a59530a373620737574617473 XMM04=736e6f7073657220676e6f7277203a4c XMM05=6f6e72726528200a74656b6361702065 XMM06=7220726f20656369766544203a363120 XMM07=6f6c0a297973756220656372756f7365 XMM08=64657469786520706f6f6c0a29797375 XMM09=0a373620737574617473206874697720 XMM10=20676e6f7277203a4c4941465a59530a XMM11=0a74656b6361702065736e6f70736572 XMM12=69766544203a3631206f6e7272652820 XMM13=6220656372756f73657220726f206563 XMM14=64657469786520706f6f6c0a29797375 XMM15=0a373620737574617473206874697720 info registers vcpu 3 RAX=0000000000035f05 RBX=ffff888011c6c100 RCX=ffffffff89154521 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=0000000000000003 RSP=ffffc9000046fdf8 R8 =0000000000000001 R9 =ffff88802cd362cb R10=ffffed10059a6c59 R11=0000000000000000 R12=ffffed100238d820 R13=0000000000000003 R14=ffffffff8dc90790 R15=0000000000000000 RIP=ffffffff8917f68e RFL=00000206 [-----P-] CPL=0 II=0 A20=1 SMM=0 HLT=1 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88802cd00000 ffffffff 00c00000 LDT=0000 0000000000000000 00000000 00000000 TR =0040 fffffe00000b4000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe00000b2000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f6136ba34a0 CR3=0000000045491000 CR4=00150ee0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001fa0 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=0000000000000000bfe62e42fefa39ef XMM03=0000ff00000000000000000000000000 XMM04=732f6c61636f6c2f7273752f3d485441 XMM05=622f6c61636f6c2f7273752f3a6e6962 XMM06=73752f3a6e6962732f7273752f3a6e69 XMM07=6e69622f3a6e6962732f3a6e69622f72 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000