overlayfs: failed to resolve './file0': -2 ================================================================================ UBSAN: Undefined behaviour in arch/x86/kvm/pmu_intel.c:299:45 overlayfs: './file0' not a directory shift exponent 213 is too large for 64-bit type 'long long unsigned int' CPU: 1 PID: 13599 Comm: syz-executor.1 Not tainted 4.19.152-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+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 intel_pmu_refresh.cold+0x9b/0xa0 arch/x86/kvm/pmu_intel.c:299 kvm_update_cpuid+0x6d9/0xaf0 arch/x86/kvm/cpuid.c:147 kvm_vcpu_ioctl_set_cpuid+0x6ab/0x970 arch/x86/kvm/cpuid.c:232 kvm_arch_vcpu_ioctl+0xea3/0x2e10 arch/x86/kvm/x86.c:3921 kvm_vcpu_ioctl+0x8af/0xe30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2975 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45de59 Code: 0d 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe6fb010c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000011f00 RCX: 000000000045de59 RDX: 0000000020000440 RSI: 000000004008ae8a RDI: 0000000000000006 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff97f9ffef R14: 00007fe6fb0119c0 R15: 000000000118bf2c ================================================================================ ================================================================================ UBSAN: Undefined behaviour in arch/x86/kvm/pmu_intel.c:301:13 shift exponent 97 is too large for 64-bit type 'long long unsigned int' CPU: 1 PID: 13652 Comm: syz-executor.1 Not tainted 4.19.152-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+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 intel_pmu_refresh.cold+0x75/0xa0 arch/x86/kvm/pmu_intel.c:301 kvm_update_cpuid+0x6d9/0xaf0 arch/x86/kvm/cpuid.c:147 kvm_vcpu_ioctl_set_cpuid+0x6ab/0x970 arch/x86/kvm/cpuid.c:232 overlayfs: failed to resolve './file0)adso[g*rYm5-cxrv(ۆHeA*': -2 kvm_arch_vcpu_ioctl+0xea3/0x2e10 arch/x86/kvm/x86.c:3921 overlayfs: failed to resolve './file0)adso[g*rYm5-cxrv(ۆHeA*': -2 kvm_vcpu_ioctl+0x8af/0xe30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2975 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45de59 Code: 0d 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe6faf8cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000011f00 RCX: 000000000045de59 RDX: 0000000020000440 RSI: 000000004008ae8a RDI: 0000000000000006 RBP: 000000000118c200 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118c1cc R13: 00007fff97f9ffef R14: 00007fe6faf8d9c0 R15: 000000000118c1cc ================================================================================ overlayfs: failed to resolve './file1': -2 overlayfs: './file0' not a directory FAT-fs (loop2): Unrecognized mount option "subj_role=overlay" or missing value overlayfs: failed to resolve './bus': -2 overlayfs: './file0' not a directory overlayfs: unrecognized mount option "lhaerdir=ݪ_./bus" or missing value gfs2: invalid mount option: euid=00000000000000000000 gfs2: can't parse mount arguments kauditd_printk_skb: 31 callbacks suppressed audit: type=1804 audit(1603162385.653:273): pid=13761 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/129/bus/file0" dev="sda1" ino=15879 res=1 gfs2: invalid mount option: euid=00000000000000000000 gfs2: can't parse mount arguments audit: type=1804 audit(1603162385.683:274): pid=13761 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/129/bus/file0" dev="sda1" ino=15879 res=1 pic_ioport_write: 102 callbacks suppressed kvm: pic: single mode not supported kvm: pic: single mode not supported overlayfs: at least 2 lowerdir are needed while upperdir nonexistent kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: single mode not supported kvm: pic: single mode not supported audit: type=1804 audit(1603162386.004:275): pid=13810 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/130/bus/file0" dev="sda1" ino=15840 res=1 overlayfs: at least 2 lowerdir are needed while upperdir nonexistent audit: type=1804 audit(1603162386.004:276): pid=13810 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/130/bus/file0" dev="sda1" ino=15840 res=1 audit: type=1804 audit(1603162386.124:277): pid=13810 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/130/bus/bus/file0" dev="sda1" ino=15856 res=1 audit: type=1804 audit(1603162386.124:278): pid=13817 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/130/bus/bus/file0" dev="sda1" ino=15856 res=1 audit: type=1804 audit(1603162386.574:279): pid=13840 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/131/bus/file0" dev="overlay" ino=16483 res=1 overlayfs: './file0' not a directory audit: type=1804 audit(1603162386.664:280): pid=13855 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/131/bus/bus/file0" dev="overlay" ino=16487 res=1 audit: type=1804 audit(1603162386.664:281): pid=13840 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/131/bus/bus/file0" dev="overlay" ino=16487 res=1 overlayfs: './file0' not a directory audit: type=1804 audit(1603162386.934:282): pid=13889 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir400790800/syzkaller.zRSh3L/132/bus/file0" dev="sda1" ino=15869 res=1 overlayfs: unrecognized mount option "loweadir=./bus1" or missing value overlayfs: unrecognized mount option "loweadir=./bus1" or missing value overlayfs: './file0' not a directory netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. capability: warning: `syz-executor.4' uses 32-bit capabilities (legacy support in use) overlayfs: failed to resolve './file0Q