./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2171553730
<...>
Warning: Permanently added '10.128.1.175' (ED25519) to the list of known hosts.
execve("./syz-executor2171553730", ["./syz-executor2171553730"], 0x7ffdb57e3c90 /* 10 vars */) = 0
brk(NULL) = 0x55557ab27000
brk(0x55557ab27d00) = 0x55557ab27d00
arch_prctl(ARCH_SET_FS, 0x55557ab27380) = 0
set_tid_address(0x55557ab27650) = 5176
set_robust_list(0x55557ab27660, 24) = 0
rseq(0x55557ab27ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2171553730", 4096) = 28
getrandom("\x8b\xcd\xfa\xe0\xd8\xf4\x18\xbc", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55557ab27d00
brk(0x55557ab48d00) = 0x55557ab48d00
brk(0x55557ab49000) = 0x55557ab49000
mprotect(0x7f2ee451b000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5177 attached
, child_tidptr=0x55557ab27650) = 5177
[pid 5177] set_robust_list(0x55557ab27660, 24) = 0
[pid 5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5177] setpgid(0, 0) = 0
[pid 5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5177] write(3, "1000", 4executing program
) = 4
[pid 5177] close(3) = 0
[pid 5177] write(1, "executing program\n", 18) = 18
[pid 5177] memfd_create("syzkaller", 0) = 3
[pid 5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2edc000000
[pid 5177] write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216
[pid 5177] munmap(0x7f2edc000000, 138412032) = 0
[pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5177] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5177] close(3) = 0
[pid 5177] close(4) = 0
[pid 5177] mkdir("./file1", 0777) = 0
[ 159.046013][ T5177] loop0: detected capacity change from 0 to 32768
[ 159.069238][ T5177] =======================================================
[ 159.069238][ T5177] WARNING: The mand mount option has been deprecated and
[ 159.069238][ T5177] and is ignored by this kernel. Remove the mand
[ 159.069238][ T5177] option from the mount to silence this warning.
[ 159.069238][ T5177] =======================================================
[pid 5177] mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,errors=remount-ro,coherency=full,coherency=full,localflocks,intr,noacl,") = 0
[pid 5177] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5177] chdir("./file1") = 0
[pid 5177] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5177] openat(AT_FDCWD, "blkio.bfq.avg_queue_size", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[ 159.145289][ T5177] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
[ 159.186686][ T5177] =====================================================
[ 159.194050][ T5177] BUG: KMSAN: uninit-value in from_kuid+0x41e/0x990
[ 159.200760][ T5177] from_kuid+0x41e/0x990
[ 159.205930][ T5177] ocfs2_setattr+0x254/0x3140
[ 159.210843][ T5177] notify_change+0x1a8e/0x1b80
[ 159.215909][ T5177] do_ftruncate+0x8c1/0xbf0
[ 159.221639][ T5177] __x64_sys_ftruncate+0x133/0x280
[ 159.227079][ T5177] x64_sys_call+0x9e4/0x3ba0
[ 159.231844][ T5177] do_syscall_64+0xcd/0x1e0
[ 159.236685][ T5177] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 159.242769][ T5177]
[ 159.245291][ T5177] Local variable newattrs.i created at:
[ 159.250925][ T5177] do_ftruncate+0x600/0xbf0
[ 159.255675][ T5177] __x64_sys_ftruncate+0x133/0x280
[ 159.260971][ T5177]
[ 159.263544][ T5177] CPU: 0 UID: 0 PID: 5177 Comm: syz-executor217 Not tainted 6.11.0-syzkaller-07337-g2004cef11ea0 #0
[ 159.274594][ T5177] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
[ 159.284879][ T5177] =====================================================
[ 159.291922][ T5177] Disabling lock debugging due to kernel taint
[ 159.298296][ T5177] Kernel panic - not syncing: kmsan.panic set ...
[ 159.304822][ T5177] CPU: 0 UID: 0 PID: 5177 Comm: syz-executor217 Tainted: G B 6.11.0-syzkaller-07337-g2004cef11ea0 #0
[ 159.317180][ T5177] Tainted: [B]=BAD_PAGE
[ 159.321381][ T5177] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
[ 159.331533][ T5177] Call Trace:
[ 159.334868][ T5177] <TASK>
[ 159.337876][ T5177] dump_stack_lvl+0x216/0x2d0
[ 159.342722][ T5177] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 159.348780][ T5177] dump_stack+0x1e/0x30
[ 159.353114][ T5177] panic+0x4e2/0xcf0
[ 159.357166][ T5177] ? kmsan_get_metadata+0x41/0x1c0
[ 159.362428][ T5177] kmsan_report+0x2c7/0x2d0
[ 159.367043][ T5177] ? ocfs2_inode_cache_io_unlock+0x22/0x30
[ 159.372973][ T5177] ? kmsan_get_metadata+0x13e/0x1c0
[ 159.378295][ T5177] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 159.384215][ T5177] ? __msan_warning+0x95/0x120
[ 159.389070][ T5177] ? from_kuid+0x41e/0x990
[ 159.393602][ T5177] ? ocfs2_setattr+0x254/0x3140
[ 159.398591][ T5177] ? notify_change+0x1a8e/0x1b80
[ 159.403639][ T5177] ? do_ftruncate+0x8c1/0xbf0
[ 159.408431][ T5177] ? __x64_sys_ftruncate+0x133/0x280
[ 159.413833][ T5177] ? x64_sys_call+0x9e4/0x3ba0
[ 159.418705][ T5177] ? do_syscall_64+0xcd/0x1e0
[ 159.423474][ T5177] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 159.429664][ T5177] ? filter_irq_stacks+0x60/0x1a0
[ 159.434811][ T5177] ? kmsan_get_metadata+0x13e/0x1c0
[ 159.440121][ T5177] ? kmsan_get_metadata+0x13e/0x1c0
[ 159.445429][ T5177] ? kmsan_internal_set_shadow_origin+0x69/0x100
[ 159.451858][ T5177] ? kmsan_get_metadata+0x13e/0x1c0
[ 159.457186][ T5177] ? kmsan_internal_set_shadow_origin+0x69/0x100
[ 159.463625][ T5177] ? kmsan_get_metadata+0x13e/0x1c0
[ 159.468930][ T5177] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 159.474851][ T5177] ? kmsan_get_metadata+0x13e/0x1c0
[ 159.480172][ T5177] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 159.486091][ T5177] __msan_warning+0x95/0x120
[ 159.490778][ T5177] from_kuid+0x41e/0x990
[ 159.495156][ T5177] ocfs2_setattr+0x254/0x3140
[ 159.499974][ T5177] ? kmsan_get_metadata+0x13e/0x1c0
[ 159.505304][ T5177] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 159.511227][ T5177] ? __pfx_ocfs2_setattr+0x10/0x10
[ 159.516427][ T5177] ? __pfx_ocfs2_setattr+0x10/0x10
[ 159.521624][ T5177] notify_change+0x1a8e/0x1b80
[ 159.526494][ T5177] ? kmsan_internal_set_shadow_origin+0x69/0x100
[ 159.532941][ T5177] do_ftruncate+0x8c1/0xbf0
[ 159.537573][ T5177] __x64_sys_ftruncate+0x133/0x280
[ 159.542836][ T5177] x64_sys_call+0x9e4/0x3ba0
[ 159.547539][ T5177] do_syscall_64+0xcd/0x1e0
[ 159.552162][ T5177] ? clear_bhb_loop+0x25/0x80
[ 159.557026][ T5177] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 159.563075][ T5177] RIP: 0033:0x7f2ee44a3b99
[ 159.567607][ T5177] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 159.587324][ T5177] RSP: 002b:00007ffddb2175e8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
[ 159.595845][ T5177] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2ee44a3b99
[ 159.603899][ T5177] RDX: 00007f2ee44a3b99 RSI: 000000000000c17a RDI: 0000000000000004
[ 159.611949][ T5177] RBP: 00007f2ee451b5f0 R08: 000055557ab284c0 R09: 000055557ab284c0
[ 159.620009][ T5177] R10: 0000000000004424 R11: 0000000000000246 R12: 00007ffddb217610
[ 159.628055][ T5177] R13: 00007ffddb217838 R14: 431bde82d7b634db R15: 00007f2ee44ec03b
[ 159.636127][ T5177] </TASK>
[ 159.639450][ T5177] Kernel Offset: disabled
[ 159.643834][ T5177] Rebooting in 86400 seconds..