================================================================================ UBSAN: Undefined behaviour in drivers/vhost/vhost.c:116:62 load of value 57 is not a valid value for type '_Bool' CPU: 1 PID: 28037 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_load_invalid_value.cold+0x63/0x6f lib/ubsan.c:454 vhost_init_is_le drivers/vhost/vhost.c:116 [inline] vhost_reset_is_le drivers/vhost/vhost.c:143 [inline] vhost_vq_reset.constprop.0.cold+0x15/0x1a drivers/vhost/vhost.c:325 vhost_dev_init+0x442/0x780 drivers/vhost/vhost.c:463 vhost_vsock_dev_open+0x1c9/0x310 drivers/vhost/vsock.c:629 misc_open+0x372/0x4a0 drivers/char/misc.c:141 chrdev_open+0x266/0x770 fs/char_dev.c:423 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x7d5/0x2e90 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 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:00007f7b67d2cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000024840 RCX: 000000000045de59 RDX: 0000000000000002 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffd70265e2f R14: 00007f7b67d2d9c0 R15: 000000000118bf2c ================================================================================ BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 921D2570 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents SELinux: unrecognized netlink message: protocol=0 nlmsg_type=9520 sclass=netlink_route_socket pid=28086 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=9520 sclass=netlink_route_socket pid=28086 comm=syz-executor.1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 921D2570 level 0 BTRFS error (device loop0): failed to read chunk root netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. BTRFS info (device loop0): has skinny extents netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'. BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 921D2570 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed srh1_mt6_check: 15 callbacks suppressed ip6t_srh: unknown srh invflags 4000 BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents ip6t_srh: unknown srh invflags 4000 ip6t_srh: unknown srh invflags 4000 overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found A951A60C level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed overlayfs: maximum fs stacking depth exceeded overlayfs: filesystem on './bus' not supported as upperdir ip6t_srh: unknown srh invflags 4000 ip6t_srh: unknown srh invflags 4000 BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found A951A60C level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed audit: type=1804 audit(1603222407.240:124): pid=28271 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir518097362/syzkaller.YtctCA/1929/cgroup.controllers" dev="sda1" ino=15955 res=1 ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'uTzm PcG' BTRFS info (device loop0): disk space caching is enabled ALSA: mixer_oss: invalid OSS volume 'ً2{1ԓ ? "u~xjkȿ' BTRFS info (device loop0): has skinny extents ALSA: mixer_oss: invalid OSS volume '`t+^?!nL'$aJͥb' ALSA: mixer_oss: invalid OSS volume 'Nɫ`' ALSA: mixer_oss: invalid OSS volume 'Y*X' ALSA: mixer_oss: invalid OSS volume 'ܙHl04B'"8K^p' ALSA: mixer_oss: invalid OSS volume '&$4a+P)}i}]#Y' ALSA: mixer_oss: invalid OSS volume '!l<@|Oӎ];9uʪs' ALSA: mixer_oss: invalid OSS volume 'Ű@PFK`!j_t@QE+/&v' ALSA: mixer_oss: invalid OSS volume 'åP(0tW4ϴ' ALSA: mixer_oss: invalid OSS volume '/O%v=n*o`C2' ALSA: mixer_oss: invalid OSS volume '\Yf<&nsUz' BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found A951A60C level 0 ALSA: mixer_oss: invalid OSS volume 'DEб'˖]`^VH&{@3' ALSA: mixer_oss: invalid OSS volume 'o`RsgzfYꘔ!0gaO' BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'uTzm PcG' ALSA: mixer_oss: invalid OSS volume 'ً2{1ԓ ? "u~xjkȿ' ALSA: mixer_oss: invalid OSS volume '`t+^?!nL'$aJͥb' ALSA: mixer_oss: invalid OSS volume '' ALSA: mixer_oss: invalid OSS volume 'Nɫ`' ALSA: mixer_oss: invalid OSS volume 'uTzm PcG' ALSA: mixer_oss: invalid OSS volume 'Y*X' ALSA: mixer_oss: invalid OSS volume 'ܙHl04B'"8K^p' ALSA: mixer_oss: invalid OSS volume '&$4a+P)}i}]#Y' ALSA: mixer_oss: invalid OSS volume 'ً2{1ԓ ? "u~xjkȿ' ALSA: mixer_oss: invalid OSS volume '!l<@|Oӎ];9uʪs' ALSA: mixer_oss: invalid OSS volume 'Ű@PFK`!j_t@QE+/&v' ALSA: mixer_oss: invalid OSS volume 'åP(0tW4ϴ' ALSA: mixer_oss: invalid OSS volume '/O%v=n*o`C2' ALSA: mixer_oss: invalid OSS volume '\Yf<&nsUz' ALSA: mixer_oss: invalid OSS volume 'DEб'˖]`^VH&{@3' ALSA: mixer_oss: invalid OSS volume 'o`RsgzfYꘔ!0gaO' ALSA: mixer_oss: invalid OSS volume '`t+^?!nL'$aJͥb' ALSA: mixer_oss: invalid OSS volume 'Nɫ`' ALSA: mixer_oss: invalid OSS volume 'Y*X' ALSA: mixer_oss: invalid OSS volume 'ܙHl04B'"8K^p' ALSA: mixer_oss: invalid OSS volume '&$4a+P)}i}]#Y' BTRFS info (device loop0): disk space caching is enabled ALSA: mixer_oss: invalid OSS volume '!l<@|Oӎ];9uʪs' BTRFS info (device loop0): has skinny extents ALSA: mixer_oss: invalid OSS volume 'Ű@PFK`!j_t@QE+/&v' ALSA: mixer_oss: invalid OSS volume 'åP(0tW4ϴ' ALSA: mixer_oss: invalid OSS volume '/O%v=n*o`C2' ALSA: mixer_oss: invalid OSS volume '\Yf<&nsUz' ALSA: mixer_oss: invalid OSS volume 'DEб'˖]`^VH&{@3' ALSA: mixer_oss: invalid OSS volume 'o`RsgzfYꘔ!0gaO' BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 9A55A680 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents netlink: 36 bytes leftover after parsing attributes in process `syz-executor.1'. ALSA: mixer_oss: invalid OSS volume '' netlink: 36 bytes leftover after parsing attributes in process `syz-executor.1'. ALSA: mixer_oss: invalid OSS volume '' netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 9A55A680 level 0 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 9A55A680 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found F45C5333 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents audit: type=1804 audit(1603222410.650:125): pid=28508 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir518097362/syzkaller.YtctCA/1934/bus" dev="sda1" ino=16083 res=1 BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found F45C5333 level 0 BTRFS error (device loop0): failed to read chunk root audit: type=1804 audit(1603222410.830:126): pid=28522 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir518097362/syzkaller.YtctCA/1934/bus" dev="sda1" ino=16083 res=1 BTRFS error (device loop0): open_ctree failed audit: type=1804 audit(1603222410.970:127): pid=28522 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir518097362/syzkaller.YtctCA/1934/bus" dev="sda1" ino=16083 res=1 BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents audit: type=1804 audit(1603222411.540:128): pid=28522 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir518097362/syzkaller.YtctCA/1934/bus" dev="sda1" ino=16083 res=1 audit: type=1804 audit(1603222411.550:129): pid=28522 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor.1" name="/root/syzkaller-testdir518097362/syzkaller.YtctCA/1934/bus" dev="sda1" ino=16083 res=1 audit: type=1804 audit(1603222411.560:130): pid=28522 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.1" name="/root/syzkaller-testdir518097362/syzkaller.YtctCA/1934/bus" dev="sda1" ino=16083 res=1 BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found F45C5333 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 334B6AD4 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 334B6AD4 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found 334B6AD4 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found E705D102 level 0 BTRFS error (device loop0): failed to read chunk root BTRFS error (device loop0): open_ctree failed BTRFS info (device loop0): disk space caching is enabled BTRFS info (device loop0): has skinny extents BTRFS warning (device loop0): loop0 checksum verify failed on 1052672 wanted 584858B7 found E705D102 level 0 BTRFS error (device loop0): failed to read chunk root TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'.