./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2458812024

<...>
[    3.293598][   T30] audit: type=1400 audit(1677069244.500:10): avc:  denied  { getattr } for  pid=80 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
[    3.562873][   T97] udevd[97]: starting version 3.2.10
[    3.686708][   T98] udevd[98]: starting eudev-3.2.10
[    3.688121][   T97] udevd (97) used greatest stack depth: 23568 bytes left
[    4.449766][  T120] dbus-daemon (120) used greatest stack depth: 23472 bytes left
[    5.023458][  T189] sshd (189) used greatest stack depth: 22512 bytes left
[   11.387687][   T30] kauditd_printk_skb: 49 callbacks suppressed
[   11.387698][   T30] audit: type=1400 audit(1677069252.610:60): avc:  denied  { transition } for  pid=232 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   11.394399][   T30] audit: type=1400 audit(1677069252.620:61): avc:  denied  { write } for  pid=232 comm="sh" path="pipe:[13183]" dev="pipefs" ino=13183 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1
[   12.577923][  T233] sshd (233) used greatest stack depth: 22192 bytes left
Warning: Permanently added '10.128.0.241' (ECDSA) to the list of known hosts.
execve("./syz-executor2458812024", ["./syz-executor2458812024"], 0x7ffee1546e10 /* 10 vars */) = 0
brk(NULL)                               = 0x5555572ab000
brk(0x5555572abc40)                     = 0x5555572abc40
arch_prctl(ARCH_SET_FS, 0x5555572ab300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2458812024", 4096) = 28
brk(0x5555572ccc40)                     = 0x5555572ccc40
brk(0x5555572cd000)                     = 0x5555572cd000
mprotect(0x7f267b376000, 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
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 323
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 324
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 325
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 326
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 327
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 328
./strace-static-x86_64: Process 328 attached
[pid   328] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 323 attached
 <unfinished ...>
[pid   323] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   328] <... openat resumed>)       = 3
[pid   328] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   323] <... openat resumed>)       = 3
[pid   323] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   323] close(3)                    = 0
[pid   328] close(3)                    = 0
[pid   323] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   328] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 330
[pid   323] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 329
./strace-static-x86_64: Process 329 attached
[pid   329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   329] setpgid(0, 0)               = 0
[pid   329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   329] write(3, "1000", 4)         = 4
[pid   329] close(3)                    = 0
[pid   329] memfd_create("syzkaller", 0) = 3
[pid   329] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
[pid   329] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   329] munmap(0x7f2672ebb000, 262144) = 0
[pid   329] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   329] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 330 attached
./strace-static-x86_64: Process 327 attached
./strace-static-x86_64: Process 326 attached
./strace-static-x86_64: Process 325 attached
./strace-static-x86_64: Process 324 attached
[   19.617973][   T30] audit: type=1400 audit(1677069260.840:62): avc:  denied  { execmem } for  pid=322 comm="syz-executor245" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   19.630478][  T329] loop0: detected capacity change from 0 to 512
[   19.632502][   T30] audit: type=1400 audit(1677069260.850:63): avc:  denied  { read write } for  pid=328 comm="syz-executor245" name="loop5" dev="devtmpfs" ino=116 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   19.632534][   T30] audit: type=1400 audit(1677069260.850:64): avc:  denied  { open } for  pid=328 comm="syz-executor245" path="/dev/loop5" dev="devtmpfs" ino=116 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
 <unfinished ...>
[pid   330] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   327] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   325] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   324] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   330] <... prctl resumed>)        = 0
[pid   327] <... openat resumed>)       = 3
[pid   326] <... openat resumed>)       = 3
[pid   325] <... openat resumed>)       = 3
[pid   324] <... openat resumed>)       = 3
[pid   330] setpgid(0, 0 <unfinished ...>
[pid   327] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   326] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   325] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   324] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   330] <... setpgid resumed>)      = 0
[pid   327] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   326] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   325] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   324] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   327] close(3 <unfinished ...>
[pid   326] close(3 <unfinished ...>
[pid   325] close(3 <unfinished ...>
[pid   324] close(3 <unfinished ...>
[pid   330] <... openat resumed>)       = 3
[pid   327] <... close resumed>)        = 0
[pid   326] <... close resumed>)        = 0
[pid   325] <... close resumed>)        = 0
[pid   324] <... close resumed>)        = 0
[pid   330] write(3, "1000", 4 <unfinished ...>
[pid   327] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   326] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   325] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   324] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   330] <... write resumed>)        = 4
[pid   330] close(3 <unfinished ...>
[pid   327] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 336
[pid   326] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 334
[pid   325] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 335
[pid   324] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 333
[pid   330] <... close resumed>)        = 0
[pid   330] memfd_create("syzkaller", 0) = 3
[pid   330] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
./strace-static-x86_64: Process 336 attached
./strace-static-x86_64: Process 335 attached
./strace-static-x86_64: Process 334 attached
./strace-static-x86_64: Process 333 attached
[pid   330] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   329] <... ioctl resumed>)        = 0
[pid   336] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   335] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   334] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   333] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   330] <... write resumed>)        = 262144
[pid   329] close(3 <unfinished ...>
[pid   336] <... prctl resumed>)        = 0
[pid   335] <... prctl resumed>)        = 0
[pid   334] <... prctl resumed>)        = 0
[pid   333] <... prctl resumed>)        = 0
[pid   329] <... close resumed>)        = 0
[pid   336] setpgid(0, 0 <unfinished ...>
[pid   335] setpgid(0, 0 <unfinished ...>
[pid   334] setpgid(0, 0 <unfinished ...>
[pid   333] setpgid(0, 0 <unfinished ...>
[pid   329] mkdir("./file0", 0777 <unfinished ...>
[pid   336] <... setpgid resumed>)      = 0
[pid   335] <... setpgid resumed>)      = 0
[pid   334] <... setpgid resumed>)      = 0
[pid   333] <... setpgid resumed>)      = 0
[pid   336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   330] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   329] <... mkdir resumed>)        = 0
[pid   336] <... openat resumed>)       = 3
[pid   335] <... openat resumed>)       = 3
[pid   334] <... openat resumed>)       = 3
[pid   333] <... openat resumed>)       = 3
[pid   330] <... munmap resumed>)       = 0
[pid   329] mount("/dev/loop0", "./file0", "ext4", 0, "inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache"... <unfinished ...>
[pid   336] write(3, "1000", 4 <unfinished ...>
[pid   335] write(3, "1000", 4 <unfinished ...>
[pid   334] write(3, "1000", 4 <unfinished ...>
[pid   333] write(3, "1000", 4 <unfinished ...>
[pid   330] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   330] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   336] <... write resumed>)        = 4
[pid   335] <... write resumed>)        = 4
[pid   334] <... write resumed>)        = 4
[pid   333] <... write resumed>)        = 4
[   19.632561][   T30] audit: type=1400 audit(1677069260.850:65): avc:  denied  { ioctl } for  pid=328 comm="syz-executor245" path="/dev/loop5" dev="devtmpfs" ino=116 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid   336] close(3 <unfinished ...>
[pid   335] close(3 <unfinished ...>
[pid   334] close(3 <unfinished ...>
[pid   333] close(3 <unfinished ...>
[pid   336] <... close resumed>)        = 0
[pid   335] <... close resumed>)        = 0
[pid   334] <... close resumed>)        = 0
[pid   333] <... close resumed>)        = 0
[pid   336] memfd_create("syzkaller", 0 <unfinished ...>
[pid   335] memfd_create("syzkaller", 0 <unfinished ...>
[pid   334] memfd_create("syzkaller", 0 <unfinished ...>
[pid   336] <... memfd_create resumed>) = 3
[pid   335] <... memfd_create resumed>) = 3
[pid   334] <... memfd_create resumed>) = 3
[pid   336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   333] memfd_create("syzkaller", 0 <unfinished ...>
[pid   335] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   334] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   336] <... mmap resumed>)         = 0x7f2672ebb000
[pid   335] <... mmap resumed>)         = 0x7f2672ebb000
[pid   334] <... mmap resumed>)         = 0x7f2672ebb000
[pid   333] <... memfd_create resumed>) = 3
[pid   335] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   334] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   335] <... write resumed>)        = 262144
[pid   335] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   334] <... write resumed>)        = 262144
[pid   336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   335] <... munmap resumed>)       = 0
[pid   334] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   333] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   335] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   334] <... munmap resumed>)       = 0
[pid   333] <... mmap resumed>)         = 0x7f2672ebb000
[pid   336] <... write resumed>)        = 262144
[pid   335] <... openat resumed>)       = 4
[pid   336] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   335] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   334] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   333] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   336] <... munmap resumed>)       = 0
[   19.696653][   T30] audit: type=1400 audit(1677069260.920:66): avc:  denied  { mounton } for  pid=329 comm="syz-executor245" path="/root/file0" dev="sda1" ino=1138 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   19.698044][  T330] loop5: detected capacity change from 0 to 512
[   19.719713][  T329] EXT4-fs (loop0): Ignoring removed nobh option
[   19.733040][  T329] EXT4-fs (loop0): Ignoring removed nobh option
[pid   334] <... openat resumed>)       = 4
[pid   330] <... ioctl resumed>)        = 0
[pid   330] close(3)                    = 0
[pid   330] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   330] mount("/dev/loop5", "./file0", "ext4", 0, "inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache"... <unfinished ...>
[pid   334] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   333] <... write resumed>)        = 262144
[pid   336] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   335] <... ioctl resumed>)        = 0
[pid   335] close(3)                    = 0
[pid   335] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   335] mount("/dev/loop2", "./file0", "ext4", 0, "inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache"... <unfinished ...>
[pid   336] <... openat resumed>)       = 4
[pid   334] <... ioctl resumed>)        = 0
[pid   333] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   336] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   333] <... munmap resumed>)       = 0
[pid   333] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   333] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   336] <... ioctl resumed>)        = 0
[pid   334] close(3 <unfinished ...>
[pid   329] <... mount resumed>)        = 0
[pid   336] close(3)                    = 0
[   19.760348][  T335] loop2: detected capacity change from 0 to 512
[   19.768387][  T329] EXT4-fs (loop0): 1 truncate cleaned up
[   19.774250][  T334] loop3: detected capacity change from 0 to 512
[   19.779597][  T329] EXT4-fs (loop0): mounted filesystem without journal. Opts: inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache,nobh,nobh,,errors=continue. Quota mode: writeback.
[   19.790362][  T336] loop4: detected capacity change from 0 to 512
[pid   336] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   336] mount("/dev/loop4", "./file0", "ext4", 0, "inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache"... <unfinished ...>
[pid   334] <... close resumed>)        = 0
[   19.806952][  T333] loop1: detected capacity change from 0 to 512
[   19.813566][  T330] EXT4-fs (loop5): Ignoring removed nobh option
[   19.813587][  T336] EXT4-fs (loop4): Ignoring removed nobh option
[   19.819875][  T335] EXT4-fs (loop2): Ignoring removed nobh option
[   19.831555][   T30] audit: type=1400 audit(1677069261.040:67): avc:  denied  { mount } for  pid=329 comm="syz-executor245" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   19.832034][  T335] EXT4-fs (loop2): Ignoring removed nobh option
[pid   334] mkdir("./file0", 0777 <unfinished ...>
[pid   333] <... ioctl resumed>)        = 0
[pid   333] close(3 <unfinished ...>
[pid   334] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid   333] <... close resumed>)        = 0
[pid   329] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   334] mount("/dev/loop3", "./file0", "ext4", 0, "inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache"... <unfinished ...>
[pid   333] mkdir("./file0", 0777 <unfinished ...>
[pid   329] <... openat resumed>)       = 3
[pid   333] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid   329] chdir("./file0" <unfinished ...>
[pid   333] mount("/dev/loop1", "./file0", "ext4", 0, "inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache"... <unfinished ...>
[pid   329] <... chdir resumed>)        = 0
[pid   329] ioctl(4, LOOP_CLR_FD)       = 0
[pid   329] close(4)                    = 0
[   19.859740][  T336] EXT4-fs (loop4): Ignoring removed nobh option
[   19.866623][  T330] EXT4-fs (loop5): Ignoring removed nobh option
[   19.873390][   T30] audit: type=1400 audit(1677069261.040:68): avc:  denied  { mounton } for  pid=336 comm="syz-executor245" path="/root/file0" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   19.888830][  T335] EXT4-fs (loop2): 1 truncate cleaned up
[   19.902919][  T334] EXT4-fs (loop3): Ignoring removed nobh option
[   19.910472][  T336] EXT4-fs (loop4): 1 truncate cleaned up
[   19.911470][   T30] audit: type=1400 audit(1677069261.130:69): avc:  denied  { write } for  pid=329 comm="syz-executor245" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   19.916492][  T330] EXT4-fs (loop5): 1 truncate cleaned up
[   19.937597][   T30] audit: type=1400 audit(1677069261.130:70): avc:  denied  { add_name } for  pid=329 comm="syz-executor245" name="cgroup.controllers" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   19.937626][   T30] audit: type=1400 audit(1677069261.130:71): avc:  denied  { create } for  pid=329 comm="syz-executor245" name="cgroup.controllers" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1
[   19.937684][  T335] EXT4-fs (loop2): mounted filesystem without journal. Opts: inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache,nobh,nobh,,errors=continue. Quota mode: writeback.
[pid   329] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   335] <... mount resumed>)        = 0
[pid   329] <... openat resumed>)       = 4
[pid   329] ioctl(4, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   329] exit_group(0)               = ?
[pid   329] +++ exited with 0 +++
[pid   323] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=329, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   335] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   323] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   335] chdir("./file0" <unfinished ...>
[pid   323] <... openat resumed>)       = 3
[pid   335] <... chdir resumed>)        = 0
[pid   323] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   335] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   323] <... ioctl resumed>)        = 0
[pid   335] <... ioctl resumed>)        = 0
[pid   323] close(3 <unfinished ...>
[pid   335] close(4 <unfinished ...>
[pid   323] <... close resumed>)        = 0
[pid   335] <... close resumed>)        = 0
[pid   323] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   335] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid   323] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 346
[pid   335] ioctl(4, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   335] exit_group(0)               = ?
[pid   335] +++ exited with 0 +++
[pid   325] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=335, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   325] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   325] ioctl(3, LOOP_CLR_FD)       = 0
[pid   325] close(3)                    = 0
[pid   325] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 347
./strace-static-x86_64: Process 346 attached
[pid   346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   346] setpgid(0, 0)               = 0
[pid   346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   346] write(3, "1000", 4)         = 4
[pid   346] close(3)                    = 0
[pid   346] memfd_create("syzkaller", 0) = 3
[pid   346] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
./strace-static-x86_64: Process 347 attached
[pid   346] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   336] <... mount resumed>)        = 0
[pid   347] setpgid(0, 0 <unfinished ...>
[pid   336] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   347] <... setpgid resumed>)      = 0
[pid   346] <... write resumed>)        = 262144
[pid   336] <... openat resumed>)       = 3
[pid   347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   336] chdir("./file0" <unfinished ...>
[pid   347] <... openat resumed>)       = 3
[pid   336] <... chdir resumed>)        = 0
[pid   347] write(3, "1000", 4 <unfinished ...>
[pid   336] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   347] <... write resumed>)        = 4
[pid   336] <... ioctl resumed>)        = 0
[pid   347] close(3 <unfinished ...>
[pid   336] close(4 <unfinished ...>
[pid   347] <... close resumed>)        = 0
[pid   336] <... close resumed>)        = 0
[pid   347] memfd_create("syzkaller", 0 <unfinished ...>
[   19.952021][  T334] EXT4-fs (loop3): Ignoring removed nobh option
[   19.965400][  T333] EXT4-fs (loop1): Ignoring removed nobh option
[   20.010169][  T336] EXT4-fs (loop4): mounted filesystem without journal. Opts: inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache,nobh,nobh,,errors=continue. Quota mode: writeback.
[   20.014457][  T330] EXT4-fs (loop5): mounted filesystem without journal. Opts: inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache,nobh,nobh,,errors=continue. Quota mode: writeback.
[pid   336] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   347] <... memfd_create resumed>) = 3
[pid   346] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   336] <... openat resumed>)       = 4
[pid   330] <... mount resumed>)        = 0
[pid   347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
[pid   347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   346] <... munmap resumed>)       = 0
[pid   336] ioctl(4, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   347] <... write resumed>)        = 262144
[pid   346] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[   20.055546][  T333] EXT4-fs (loop1): Ignoring removed nobh option
[   20.071025][  T336] ------------[ cut here ]------------
[   20.081619][  T336] kernel BUG at fs/ext4/ext4.h:3355!
[   20.086864][  T336] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   20.090285][  T334] EXT4-fs (loop3): 1 truncate cleaned up
[   20.092747][  T336] CPU: 1 PID: 336 Comm: syz-executor245 Not tainted 5.15.94-syzkaller-03204-g5448b2fda85f #0
[   20.092771][  T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
[   20.092782][  T336] RIP: 0010:ext4_mb_load_buddy_gfp+0xee5/0xf00
[   20.092817][  T336] Code: b1 11 c8 ff e9 0d f4 ff ff e8 57 d7 86 ff 48 c7 c7 80 78 69 86 4c 89 fe 4c 89 f2 e8 95 4e 94 00 e9 87 f2 ff ff e8 3b d7 86 ff <0f> 0b e8 34 d7 86 ff 0f 0b e8 2d d7 86 ff 0f 0b 66 2e 0f 1f 84 00
[   20.092833][  T336] RSP: 0018:ffffc90000a87320 EFLAGS: 00010293
[   20.092852][  T336] RAX: ffffffff81e89a85 RBX: 0000000000000001 RCX: ffff888105b92780
[   20.098468][  T334] EXT4-fs (loop3): mounted filesystem without journal. Opts: inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache,nobh,nobh,,errors=continue. Quota mode: writeback.
[   20.108191][  T336] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
[   20.108206][  T336] RBP: ffffc90000a873b0 R08: ffffffff81e88cb4 R09: ffffc90000a87460
[   20.108221][  T336] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102037b879
[   20.121089][  T333] EXT4-fs (loop1): 1 truncate cleaned up
[pid   330] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   347] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   346] <... openat resumed>)       = 4
[pid   347] <... munmap resumed>)       = 0
[pid   346] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   347] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   346] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   347] <... openat resumed>)       = 4
[pid   346] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   347] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   346] <... ioctl resumed>)        = 0
[pid   347] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   347] ioctl(4, LOOP_CLR_FD)       = 0
[pid   346] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   346] close(4)                    = 0
[pid   346] close(3)                    = 0
[pid   347] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   346] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   347] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   346] <... openat resumed>)       = 3
[pid   347] close(4 <unfinished ...>
[pid   346] ioctl(3, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   347] <... close resumed>)        = 0
[pid   346] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   347] close(3 <unfinished ...>
[pid   346] exit_group(0 <unfinished ...>
[pid   347] <... close resumed>)        = 0
[pid   346] <... exit_group resumed>)   = ?
[pid   347] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   346] +++ exited with 0 +++
[pid   347] <... openat resumed>)       = 3
[pid   323] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=346, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   347] ioctl(3, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   347] exit_group(0)               = ?
[pid   347] +++ exited with 0 +++
[pid   325] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=347, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   325] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   325] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   323] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   325] <... openat resumed>)       = 3
[pid   323] <... openat resumed>)       = 3
[pid   325] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   323] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   325] <... ioctl resumed>)        = 0
[pid   323] <... ioctl resumed>)        = 0
[pid   325] close(3 <unfinished ...>
[pid   323] close(3 <unfinished ...>
[pid   325] <... close resumed>)        = 0
[pid   323] <... close resumed>)        = 0
[pid   325] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   323] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   325] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 352
[pid   323] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 353
[pid   334] <... mount resumed>)        = 0
[pid   334] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   334] chdir("./file0")            = 0
[pid   334] ioctl(4, LOOP_CLR_FD)       = 0
[pid   334] close(4)                    = 0
[pid   334] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid   334] ioctl(4, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   334] exit_group(0)               = ?
[pid   334] +++ exited with 0 +++
[pid   326] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=334, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   326] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   326] ioctl(3, LOOP_CLR_FD)       = 0
[pid   326] close(3)                    = 0
[pid   326] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 354
[pid   333] <... mount resumed>)        = 0
[pid   333] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   333] chdir("./file0")            = 0
[pid   333] ioctl(4, LOOP_CLR_FD)       = 0
[pid   333] close(4)                    = 0
[pid   333] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid   333] ioctl(4, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   333] exit_group(0)               = ?
[pid   333] +++ exited with 0 +++
[pid   324] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=333, si_uid=0, si_status=0, si_utime=0, si_stime=8} ---
[   20.124076][  T336] R13: ffff888101bdc3c8 R14: 0000000000000001 R15: ffff88810a146000
[   20.124093][  T336] FS:  00005555572ab300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   20.210054][  T333] EXT4-fs (loop1): mounted filesystem without journal. Opts: inode_readahead_blks=0x0000000000,block_validity,debug_want_extra_isize=0x0000000000000064,nombcache,nobh,nobh,,errors=continue. Quota mode: writeback.
[   20.214339][  T336] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.214358][  T336] CR2: 000055c7b0d11618 CR3: 000000011faf3000 CR4: 00000000003506a0
[pid   324] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   330] chdir("./file0")            = 0
[pid   330] ioctl(4, LOOP_CLR_FD)       = 0
[pid   324] <... restart_syscall resumed>) = 0
[pid   330] close(4)                    = 0
[pid   330] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   324] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   330] <... openat resumed>)       = 4
[pid   324] <... openat resumed>)       = 3
[pid   330] ioctl(4, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   324] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   330] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   324] <... ioctl resumed>)        = 0
[pid   330] exit_group(0 <unfinished ...>
[pid   324] close(3 <unfinished ...>
[pid   330] <... exit_group resumed>)   = ?
[pid   324] <... close resumed>)        = 0
[pid   330] +++ exited with 0 +++
[pid   324] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   328] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=330, si_uid=0, si_status=0, si_utime=0, si_stime=7} ---
[pid   324] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 355
[pid   328] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   328] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   328] ioctl(3, LOOP_CLR_FD)       = 0
[pid   328] close(3)                    = 0
[pid   328] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 356
./strace-static-x86_64: Process 352 attached
[pid   352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   352] setpgid(0, 0)               = 0
[pid   352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   352] write(3, "1000", 4)         = 4
[pid   352] close(3)                    = 0
[pid   352] memfd_create("syzkaller", 0) = 3
[pid   352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
[pid   352] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   352] munmap(0x7f2672ebb000, 262144) = 0
[pid   352] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   352] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   352] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 353 attached
[pid   353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[   20.214379][  T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.214392][  T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.273377][  T336] Call Trace:
[   20.276491][  T336]  <TASK>
[   20.279271][  T336]  ext4_mballoc_query_range+0xc5/0x7b0
[   20.284561][  T336]  ? ext4_getfsmap_dev_compare+0x90/0x90
[   20.290028][  T336]  ? ext4_trim_fs+0x17f0/0x17f0
[   20.294716][  T336]  ? __kasan_kmalloc+0x9/0x10
[   20.299234][  T336]  ext4_getfsmap_datadev+0x1cc8/0x2950
[   20.304528][  T336]  ? ext4_getfsmap+0x1060/0x1060
[pid   352] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   352] close(4)                    = 0
[pid   352] close(3)                    = 0
[pid   353] setpgid(0, 0)               = 0
[pid   353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   353] write(3, "1000", 4 <unfinished ...>
[pid   352] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   353] <... write resumed>)        = 4
[pid   352] <... openat resumed>)       = 3
[pid   353] close(3 <unfinished ...>
[pid   352] ioctl(3, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   353] <... close resumed>)        = 0
[pid   353] memfd_create("syzkaller", 0 <unfinished ...>
[pid   352] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   353] <... memfd_create resumed>) = 3
[pid   352] exit_group(0 <unfinished ...>
[pid   353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   352] <... exit_group resumed>)   = ?
[pid   353] <... mmap resumed>)         = 0x7f2672ebb000
[pid   352] +++ exited with 0 +++
[pid   353] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   325] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=352, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   325] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   353] <... write resumed>)        = 262144
[pid   325] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   325] ioctl(3, LOOP_CLR_FD)       = 0
[pid   325] close(3)                    = 0
[pid   325] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 357
[pid   353] munmap(0x7f2672ebb000, 262144) = 0
[pid   353] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   353] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   353] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 354 attached
[pid   354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   354] setpgid(0, 0)               = 0
[   20.309296][  T336]  ? ext4_getfsmap+0x1060/0x1060
[   20.314084][  T336]  ext4_getfsmap+0xcc6/0x1060
[   20.318583][  T336]  ? ext4_getfsmap+0x1060/0x1060
[   20.323356][  T336]  ? page_remove_rmap+0xebe/0x1420
[   20.328307][  T336]  ? ext4_fsmap_to_internal+0x310/0x310
[   20.333689][  T336]  ? ext4_getfsmap+0x1060/0x1060
[   20.338462][  T336]  ? ext4_dax_dontcache+0x160/0x160
[   20.343496][  T336]  ? memcpy+0x56/0x70
[   20.347310][  T336]  ? ext4_fsmap_to_internal+0x1c8/0x310
[   20.352702][  T336]  ext4_ioctl+0x3463/0x5800
[   20.357033][  T336]  ? __kasan_check_write+0x14/0x20
[pid   353] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   353] close(4)                    = 0
[pid   353] close(3)                    = 0
[pid   353] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid   353] ioctl(3, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   353] exit_group(0)               = ?
[pid   353] +++ exited with 0 +++
[pid   323] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=353, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   323] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   323] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   323] ioctl(3, LOOP_CLR_FD)       = 0
[pid   323] close(3)                    = 0
[pid   323] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 358
[pid   354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   354] write(3, "1000", 4)         = 4
[pid   354] close(3)                    = 0
[pid   354] memfd_create("syzkaller", 0) = 3
[pid   354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
[pid   354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   354] munmap(0x7f2672ebb000, 262144) = 0
[pid   354] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   354] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   354] ioctl(4, LOOP_CLR_FD)       = 0
[pid   354] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   354] close(4)                    = 0
[pid   354] close(3)                    = 0
[   20.361980][  T336]  ? __switch_to+0x62a/0x1190
[   20.366491][  T336]  ? do_vfs_ioctl+0x1a90/0x2a80
[   20.371177][  T336]  ? ext4_fileattr_set+0x1740/0x1740
[   20.376299][  T336]  ? __x64_compat_sys_ioctl+0x90/0x90
[   20.381506][  T336]  ? native_set_ldt+0x360/0x360
[   20.386196][  T336]  ? finish_task_switch+0x167/0x7b0
[   20.391230][  T336]  ? ioctl_has_perm+0x3f5/0x560
[   20.395921][  T336]  ? _raw_spin_unlock_irq+0x4e/0x70
[   20.400950][  T336]  ? cgroup_leave_frozen+0x164/0x2c0
[   20.406071][  T336]  ? selinux_file_ioctl+0x3cc/0x540
[   20.411102][  T336]  ? selinux_file_alloc_security+0x120/0x120
[   20.416919][  T336]  ? _raw_spin_unlock_irq+0x4e/0x70
[   20.421950][  T336]  ? ptrace_notify+0x24c/0x350
[   20.426554][  T336]  ? security_file_ioctl+0x84/0xb0
[   20.431499][  T336]  ? ext4_fileattr_set+0x1740/0x1740
[   20.436629][  T336]  __se_sys_ioctl+0x114/0x190
[   20.441136][  T336]  __x64_sys_ioctl+0x7b/0x90
[   20.445560][  T336]  do_syscall_64+0x3d/0xb0
[   20.449818][  T336]  entry_SYSCALL_64_after_hwframe+0x61/0xcb
[   20.455543][  T336] RIP: 0033:0x7f267b3083f9
[   20.459794][  T336] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 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 c0 ff ff ff f7 d8 64 89 01 48
[   20.479366][  T336] RSP: 002b:00007ffc9de2d958 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   20.487612][  T336] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f267b3083f9
[   20.495419][  T336] RDX: 0000000020000380 RSI: 00000000c0c0583b RDI: 0000000000000004
[   20.503231][  T336] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d
[pid   354] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid   354] ioctl(3, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   354] exit_group(0)               = ?
[pid   354] +++ exited with 0 +++
[pid   326] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=354, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   326] ioctl(3, LOOP_CLR_FD)       = 0
[pid   326] close(3)                    = 0
[pid   326] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 359
./strace-static-x86_64: Process 359 attached
[pid   359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   359] setpgid(0, 0)               = 0
[pid   359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   359] write(3, "1000", 4)         = 4
[pid   359] close(3)                    = 0
[pid   359] memfd_create("syzkaller", 0) = 3
[pid   359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
[pid   359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144) = 262144
[pid   359] munmap(0x7f2672ebb000, 262144) = 0
[pid   359] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   359] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   359] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 355 attached
[pid   355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   359] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   359] close(4)                    = 0
[pid   359] close(3 <unfinished ...>
[pid   355] setpgid(0, 0)               = 0
[pid   355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   355] write(3, "1000", 4)         = 4
[pid   355] close(3)                    = 0
[pid   355] memfd_create("syzkaller", 0 <unfinished ...>
[pid   359] <... close resumed>)        = 0
[pid   355] <... memfd_create resumed>) = 3
[pid   355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   359] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   355] <... mmap resumed>)         = 0x7f2672ebb000
[pid   359] <... openat resumed>)       = 3
[pid   355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   359] ioctl(3, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   359] exit_group(0)               = ?
[pid   359] +++ exited with 0 +++
[pid   326] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=359, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   326] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   326] ioctl(3, LOOP_CLR_FD)       = 0
[pid   326] close(3)                    = 0
[pid   326] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 360
[pid   355] <... write resumed>)        = 262144
[pid   355] munmap(0x7f2672ebb000, 262144) = 0
[pid   355] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   355] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   355] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 360 attached
[pid   360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   360] setpgid(0, 0 <unfinished ...>
[pid   355] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   355] close(4)                    = 0
[pid   355] close(3)                    = 0
[pid   355] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   360] <... setpgid resumed>)      = 0
[pid   355] <... openat resumed>)       = 3
[pid   360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   355] ioctl(3, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   360] <... openat resumed>)       = 3
[pid   355] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   360] write(3, "1000", 4 <unfinished ...>
[pid   355] exit_group(0 <unfinished ...>
[pid   360] <... write resumed>)        = 4
[pid   355] <... exit_group resumed>)   = ?
[pid   360] close(3 <unfinished ...>
[pid   355] +++ exited with 0 +++
[pid   360] <... close resumed>)        = 0
[pid   324] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=355, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   360] memfd_create("syzkaller", 0 <unfinished ...>
[pid   324] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   360] <... memfd_create resumed>) = 3
[pid   324] <... restart_syscall resumed>) = 0
[pid   360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
[pid   360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   324] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   324] ioctl(3, LOOP_CLR_FD)       = 0
[pid   324] close(3)                    = 0
[pid   324] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   360] <... write resumed>)        = 262144
[pid   324] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 361
[pid   360] munmap(0x7f2672ebb000, 262144) = 0
[pid   360] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   360] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   360] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 361 attached
[pid   361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   361] setpgid(0, 0 <unfinished ...>
[pid   360] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   360] close(4 <unfinished ...>
[pid   361] <... setpgid resumed>)      = 0
[pid   361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   360] <... close resumed>)        = 0
[pid   361] <... openat resumed>)       = 3
[pid   360] close(3 <unfinished ...>
[pid   361] write(3, "1000", 4 <unfinished ...>
[pid   360] <... close resumed>)        = 0
[pid   361] <... write resumed>)        = 4
[pid   360] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   361] close(3 <unfinished ...>
[pid   360] <... openat resumed>)       = 3
[pid   361] <... close resumed>)        = 0
[pid   360] ioctl(3, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   361] memfd_create("syzkaller", 0 <unfinished ...>
[pid   360] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   361] <... memfd_create resumed>) = 3
[pid   360] exit_group(0 <unfinished ...>
[pid   361] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   360] <... exit_group resumed>)   = ?
[pid   361] <... mmap resumed>)         = 0x7f2672ebb000
[pid   360] +++ exited with 0 +++
[pid   361] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   326] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=360, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   326] ioctl(3, LOOP_CLR_FD)       = 0
[pid   326] close(3)                    = 0
[pid   361] <... write resumed>)        = 262144
[pid   326] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 362
[pid   361] munmap(0x7f2672ebb000, 262144) = 0
[pid   361] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   361] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   361] ioctl(4, LOOP_CLR_FD)       = 0
[pid   361] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   361] close(4)                    = 0
[pid   361] close(3)                    = 0
[pid   361] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
./strace-static-x86_64: Process 362 attached
[pid   361] ioctl(3, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   362] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   361] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   362] <... prctl resumed>)        = 0
[pid   361] exit_group(0 <unfinished ...>
[pid   362] setpgid(0, 0 <unfinished ...>
[pid   361] <... exit_group resumed>)   = ?
[pid   362] <... setpgid resumed>)      = 0
[pid   361] +++ exited with 0 +++
[pid   362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   324] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=361, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   362] <... openat resumed>)       = 3
[pid   362] write(3, "1000", 4)         = 4
[pid   362] close(3)                    = 0
[pid   362] memfd_create("syzkaller", 0) = 3
[pid   362] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
[pid   362] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   324] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   324] ioctl(3, LOOP_CLR_FD)       = 0
[pid   324] close(3)                    = 0
[pid   362] <... write resumed>)        = 262144
[pid   324] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 363
[pid   362] munmap(0x7f2672ebb000, 262144) = 0
[pid   362] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   362] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   362] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 358 attached
./strace-static-x86_64: Process 357 attached
./strace-static-x86_64: Process 356 attached
[pid   362] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   362] close(4)                    = 0
[pid   362] close(3)                    = 0
[pid   362] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000./strace-static-x86_64: Process 363 attached
) = 3
[pid   363] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   362] ioctl(3, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   358] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   357] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   356] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   363] <... prctl resumed>)        = 0
[pid   362] exit_group(0 <unfinished ...>
[pid   363] setpgid(0, 0)               = 0
[pid   362] <... exit_group resumed>)   = ?
[pid   363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   362] +++ exited with 0 +++
[pid   363] <... openat resumed>)       = 3
[pid   326] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=362, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   363] write(3, "1000", 4)         = 4
[pid   363] close(3)                    = 0
[pid   363] memfd_create("syzkaller", 0) = 3
[pid   363] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   358] <... prctl resumed>)        = 0
[pid   357] <... prctl resumed>)        = 0
[pid   356] <... prctl resumed>)        = 0
[pid   363] <... mmap resumed>)         = 0x7f2672ebb000
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   363] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   326] <... openat resumed>)       = 3
[pid   326] ioctl(3, LOOP_CLR_FD)       = 0
[pid   326] close(3)                    = 0
[pid   326] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 364
[pid   363] <... write resumed>)        = 262144
[pid   363] munmap(0x7f2672ebb000, 262144) = 0
[pid   363] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   363] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   363] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 364 attached
[pid   364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   364] setpgid(0, 0)               = 0
[pid   363] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   363] close(4)                    = 0
[pid   363] close(3)                    = 0
[pid   363] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid   363] ioctl(3, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   363] exit_group(0 <unfinished ...>
[pid   364] <... openat resumed>)       = 3
[pid   363] <... exit_group resumed>)   = ?
[   20.511045][  T336] R10: 000000000000041b R11: 0000000000000246 R12: 00007f267b2c75d0
[   20.518862][  T336] R13: 00007ffc9de2d980 R14: 00007ffc9de2d96c R15: 00007ffc9de2d970
[   20.526669][  T336]  </TASK>
[   20.529529][  T336] Modules linked in:
[   20.534625][  T336] ---[ end trace f7840bb66e83e6ee ]---
[   20.540713][  T336] RIP: 0010:ext4_mb_load_buddy_gfp+0xee5/0xf00
[pid   364] write(3, "1000", 4 <unfinished ...>
[pid   363] +++ exited with 0 +++
[pid   364] <... write resumed>)        = 4
[pid   364] close(3 <unfinished ...>
[pid   324] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=363, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   364] <... close resumed>)        = 0
[pid   324] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   364] memfd_create("syzkaller", 0 <unfinished ...>
[pid   324] <... openat resumed>)       = 3
[pid   364] <... memfd_create resumed>) = 3
[pid   324] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   364] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   358] setpgid(0, 0 <unfinished ...>
[pid   357] setpgid(0, 0 <unfinished ...>
[pid   356] setpgid(0, 0 <unfinished ...>
[pid   324] <... ioctl resumed>)        = 0
[pid   364] <... mmap resumed>)         = 0x7f2672ebb000
[pid   324] close(3 <unfinished ...>
[pid   364] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   324] <... close resumed>)        = 0
[pid   324] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   358] <... setpgid resumed>)      = 0
[pid   357] <... setpgid resumed>)      = 0
[pid   356] <... setpgid resumed>)      = 0
[pid   364] <... write resumed>)        = 262144
[pid   358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   324] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 365
[pid   356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   364] munmap(0x7f2672ebb000, 262144) = 0
[pid   364] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   364] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   364] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 365 attached
[pid   365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   365] setpgid(0, 0)               = 0
[pid   365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   364] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   364] close(4)                    = 0
[pid   364] close(3)                    = 0
[pid   364] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid   365] <... openat resumed>)       = 3
[pid   364] ioctl(3, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   365] write(3, "1000", 4 <unfinished ...>
[pid   364] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   365] <... write resumed>)        = 4
[pid   364] exit_group(0 <unfinished ...>
[pid   365] close(3)                    = 0
[pid   364] <... exit_group resumed>)   = ?
[pid   365] memfd_create("syzkaller", 0 <unfinished ...>
[pid   364] +++ exited with 0 +++
[pid   365] <... memfd_create resumed>) = 3
[pid   358] <... openat resumed>)       = 3
[pid   357] <... openat resumed>)       = 3
[pid   356] <... openat resumed>)       = 3
[pid   326] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=364, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2672ebb000
[pid   365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   326] ioctl(3, LOOP_CLR_FD)       = 0
[pid   326] close(3)                    = 0
[pid   326] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   358] write(3, "1000", 4 <unfinished ...>
[pid   357] write(3, "1000", 4 <unfinished ...>
[pid   356] write(3, "1000", 4 <unfinished ...>
[pid   365] <... write resumed>)        = 262144
[pid   326] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 366
[pid   365] munmap(0x7f2672ebb000, 262144) = 0
[pid   365] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   358] <... write resumed>)        = 4
[pid   357] <... write resumed>)        = 4
[pid   356] <... write resumed>)        = 4
[pid   365] <... openat resumed>)       = 4
[pid   365] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   365] ioctl(4, LOOP_CLR_FD)       = 0
[   20.547345][  T336] Code: b1 11 c8 ff e9 0d f4 ff ff e8 57 d7 86 ff 48 c7 c7 80 78 69 86 4c 89 fe 4c 89 f2 e8 95 4e 94 00 e9 87 f2 ff ff e8 3b d7 86 ff <0f> 0b e8 34 d7 86 ff 0f 0b e8 2d d7 86 ff 0f 0b 66 2e 0f 1f 84 00
[   20.576191][  T336] RSP: 0018:ffffc90000a87320 EFLAGS: 00010293
[   20.587542][  T336] RAX: ffffffff81e89a85 RBX: 0000000000000001 RCX: ffff888105b92780
[   20.599181][  T336] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
[pid   365] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 366 attached
)    = -1 EBUSY (Device or resource busy)
[pid   366] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   365] close(4 <unfinished ...>
[pid   366] <... prctl resumed>)        = 0
[pid   365] <... close resumed>)        = 0
[pid   366] setpgid(0, 0 <unfinished ...>
[pid   365] close(3 <unfinished ...>
[pid   366] <... setpgid resumed>)      = 0
[pid   365] <... close resumed>)        = 0
[pid   366] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   365] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   366] <... openat resumed>)       = 3
[pid   365] <... openat resumed>)       = 3
[pid   358] close(3 <unfinished ...>
[pid   357] close(3 <unfinished ...>
[pid   356] close(3 <unfinished ...>
[pid   366] write(3, "1000", 4 <unfinished ...>
[pid   365] ioctl(3, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   358] <... close resumed>)        = 0
[pid   357] <... close resumed>)        = 0
[pid   356] <... close resumed>)        = 0
[pid   366] <... write resumed>)        = 4
[pid   365] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   358] memfd_create("syzkaller", 0 <unfinished ...>
[pid   357] memfd_create("syzkaller", 0 <unfinished ...>
[pid   356] memfd_create("syzkaller", 0 <unfinished ...>
[pid   366] close(3 <unfinished ...>
[pid   365] exit_group(0 <unfinished ...>
[pid   358] <... memfd_create resumed>) = 3
[pid   357] <... memfd_create resumed>) = 3
[pid   356] <... memfd_create resumed>) = 3
[pid   366] <... close resumed>)        = 0
[pid   365] <... exit_group resumed>)   = ?
[pid   366] memfd_create("syzkaller", 0 <unfinished ...>
[pid   365] +++ exited with 0 +++
[pid   366] <... memfd_create resumed>) = 3
[pid   324] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=365, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   324] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   366] <... mmap resumed>)         = 0x7f2672ebb000
[pid   324] <... restart_syscall resumed>) = 0
[pid   366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   324] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   366] <... write resumed>)        = 262144
[pid   324] ioctl(3, LOOP_CLR_FD)       = 0
[pid   324] close(3)                    = 0
[pid   366] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   324] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   366] <... munmap resumed>)       = 0
[pid   358] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   366] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   324] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 367
[pid   366] <... openat resumed>)       = 4
[pid   366] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   366] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 367 attached
[pid   367] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   366] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   366] close(4)                    = 0
[pid   366] close(3)                    = 0
[pid   366] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid   366] ioctl(3, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   366] exit_group(0 <unfinished ...>
[pid   367] <... prctl resumed>)        = 0
[pid   366] <... exit_group resumed>)   = ?
[pid   367] setpgid(0, 0 <unfinished ...>
[pid   366] +++ exited with 0 +++
[pid   367] <... setpgid resumed>)      = 0
[pid   326] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=366, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   358] <... mmap resumed>)         = 0x7f2672ebb000
[pid   357] <... mmap resumed>)         = 0x7f2672ebb000
[pid   356] <... mmap resumed>)         = 0x7f2672ebb000
[pid   367] <... openat resumed>)       = 3
[pid   367] write(3, "1000", 4 <unfinished ...>
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   367] <... write resumed>)        = 4
[pid   326] <... openat resumed>)       = 3
[pid   367] close(3 <unfinished ...>
[pid   326] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   367] <... close resumed>)        = 0
[pid   326] <... ioctl resumed>)        = 0
[pid   367] memfd_create("syzkaller", 0 <unfinished ...>
[pid   326] close(3 <unfinished ...>
[pid   367] <... memfd_create resumed>) = 3
[pid   326] <... close resumed>)        = 0
[pid   367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   326] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   367] <... mmap resumed>)         = 0x7f2672ebb000
[pid   367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   326] <... clone resumed>, child_tidptr=0x5555572ab5d0) = 368
[pid   357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   356] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   367] <... write resumed>)        = 262144
[pid   367] munmap(0x7f2672ebb000, 262144) = 0
[pid   367] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   367] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   367] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 368 attached
[pid   368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   368] setpgid(0, 0)               = 0
[pid   367] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   367] close(4)                    = 0
[pid   367] close(3)                    = 0
[pid   367] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid   367] ioctl(3, FS_IOC_GETFSMAP, 0x20000380) = -1 EINVAL (Invalid argument)
[pid   368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   367] exit_group(0 <unfinished ...>
[pid   368] <... openat resumed>)       = 3
[pid   367] <... exit_group resumed>)   = ?
[pid   368] write(3, "1000", 4 <unfinished ...>
[pid   367] +++ exited with 0 +++
[pid   368] <... write resumed>)        = 4
[pid   324] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=367, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   368] close(3)                    = 0
[   20.610927][  T336] RBP: ffffc90000a873b0 R08: ffffffff81e88cb4 R09: ffffc90000a87460
[   20.623669][  T336] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1102037b879
[   20.632479][  T336] R13: ffff888101bdc3c8 R14: 0000000000000001 R15: ffff88810a146000
[   20.652369][  T336] FS:  00005555572ab300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[pid   368] memfd_create("syzkaller", 0 <unfinished ...>
[pid   358] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   357] <... write resumed>)        = 262144
[pid   356] <... write resumed>)        = 262144
[pid   324] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   368] <... memfd_create resumed>) = 3
[pid   324] <... openat resumed>)       = 3
[pid   368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   324] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   368] <... mmap resumed>)         = 0x7f2672ebb000
[pid   324] <... ioctl resumed>)        = 0
[pid   368] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   324] close(3 <unfinished ...>
[pid   358] <... write resumed>)        = 262144
[pid   357] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   356] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   324] <... close resumed>)        = 0
[pid   324] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ab5d0) = 369
[pid   368] <... write resumed>)        = 262144
[pid   368] munmap(0x7f2672ebb000, 262144) = 0
[pid   368] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   358] munmap(0x7f2672ebb000, 262144 <unfinished ...>
[pid   368] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   357] <... munmap resumed>)       = 0
[pid   356] <... munmap resumed>)       = 0
[pid   368] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   368] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 369 attached
[pid   369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   369] setpgid(0, 0)               = 0
[pid   368] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   368] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   369] <... openat resumed>)       = 3
[pid   368] close(4 <unfinished ...>
[pid   369] write(3, "1000", 4 <unfinished ...>
[pid   368] <... close resumed>)        = 0
[pid   369] <... write resumed>)        = 4
[pid   368] close(3 <unfinished ...>
[pid   369] close(3 <unfinished ...>
[pid   368] <... close resumed>)        = 0
[pid   358] <... munmap resumed>)       = 0
[pid   357] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   356] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   369] <... close resumed>)        = 0
[pid   368] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[pid   369] memfd_create("syzkaller", 0 <unfinished ...>
[pid   368] <... openat resumed>)       = 3
[pid   369] <... memfd_create resumed>) = 3
[pid   368] ioctl(3, FS_IOC_GETFSMAP, 0x20000380 <unfinished ...>
[pid   369] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   368] <... ioctl resumed>)        = -1 EINVAL (Invalid argument)
[pid   369] <... mmap resumed>)         = 0x7f2672ebb000
[pid   368] exit_group(0 <unfinished ...>
[pid   358] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   357] <... openat resumed>)       = 4
[pid   356] <... openat resumed>)       = 4
[pid   369] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 262144 <unfinished ...>
[pid   368] <... exit_group resumed>)   = ?
[pid   369] <... write resumed>)        = 262144
[pid   368] +++ exited with 0 +++
[pid   326] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=368, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   369] munmap(0x7f2672ebb000, 262144) = 0
[pid   369] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   369] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   326] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   369] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   326] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   369] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   326] <... ioctl resumed>)        = 0
[pid   369] <... ioctl resumed>)        = 0
[pid   358] <... openat resumed>)       = 4
[pid   357] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   356] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   326] close(3 <unfinished ...>
[pid   358] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   357] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   356] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[   20.668299][  T336] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.675904][  T336] CR2: 00007f2672efa000 CR3: 000000011faf3000 CR4: 00000000003506a0
[   20.684427][  T336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.697871][  T336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.706296][  T336] Kernel panic - not syncing: Fatal exception
[   20.712382][  T336] Kernel Offset: disabled
[   20.716525][  T336] Rebooting in 86400 seconds..