./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor326660047

<...>
Warning: Permanently added '10.128.10.5' (ED25519) to the list of known hosts.
execve("./syz-executor326660047", ["./syz-executor326660047"], 0x7fffe842d3f0 /* 10 vars */) = 0
brk(NULL)                               = 0x5555588e7000
brk(0x5555588e7d00)                     = 0x5555588e7d00
arch_prctl(ARCH_SET_FS, 0x5555588e7380) = 0
set_tid_address(0x5555588e7650)         = 5233
set_robust_list(0x5555588e7660, 24)     = 0
rseq(0x5555588e7ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor326660047", 4096) = 27
getrandom("\xf4\x5d\x64\x39\x16\x8a\x07\x40", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x5555588e7d00
brk(0x555558908d00)                     = 0x555558908d00
brk(0x555558909000)                     = 0x555558909000
mprotect(0x7fc36b686000, 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./strace-static-x86_64: Process 5234 attached
 <unfinished ...>
[pid  5234] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5233] <... clone resumed>, child_tidptr=0x5555588e7650) = 5234
[pid  5234] <... set_robust_list resumed>) = 0
[pid  5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5234] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 5235 attached
 <unfinished ...>
[pid  5233] <... clone resumed>, child_tidptr=0x5555588e7650) = 5235
[pid  5235] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5234] <... openat resumed>)       = 3
[pid  5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5235] <... set_robust_list resumed>) = 0
[pid  5234] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 5236 attached
[pid  5235] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5234] close(3 <unfinished ...>
[pid  5236] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5233] <... clone resumed>, child_tidptr=0x5555588e7650) = 5236
[pid  5236] <... set_robust_list resumed>) = 0
[pid  5235] <... openat resumed>)       = 3
[pid  5234] <... close resumed>)        = 0
[pid  5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5236] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5234] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5236] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5237 attached
[pid  5235] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5238 attached
 <unfinished ...>
[pid  5237] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5236] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5235] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5237] <... set_robust_list resumed>) = 0
[pid  5236] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5235] close(3 <unfinished ...>
[pid  5233] <... clone resumed>, child_tidptr=0x5555588e7650) = 5238
[pid  5238] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5236] close(3 <unfinished ...>
[pid  5235] <... close resumed>)        = 0
[pid  5234] <... clone resumed>, child_tidptr=0x5555588e7650) = 5237
[pid  5235] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5233] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5238] <... set_robust_list resumed>) = 0
[pid  5236] <... close resumed>)        = 0
[pid  5238] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5237] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5236] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5242 attached
./strace-static-x86_64: Process 5240 attached
./strace-static-x86_64: Process 5239 attached
 <unfinished ...>
[pid  5237] <... prctl resumed>)        = 0
[pid  5238] <... openat resumed>)       = 3
[pid  5233] <... clone resumed>, child_tidptr=0x5555588e7650) = 5240
[pid  5242] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5240] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5239] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5237] setpgid(0, 0 <unfinished ...>
[pid  5235] <... clone resumed>, child_tidptr=0x5555588e7650) = 5239
[pid  5242] <... set_robust_list resumed>) = 0
[pid  5240] <... set_robust_list resumed>) = 0
[pid  5238] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5239] <... set_robust_list resumed>) = 0
[pid  5237] <... setpgid resumed>)      = 0
[pid  5238] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5239] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5238] close(3 <unfinished ...>
[pid  5239] <... prctl resumed>)        = 0
[pid  5237] <... openat resumed>)       = 3
[pid  5239] setpgid(0, 0 <unfinished ...>
[pid  5237] write(3, "1000", 4 <unfinished ...>
[pid  5242] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5239] <... setpgid resumed>)      = 0
[pid  5238] <... close resumed>)        = 0
[pid  5237] <... write resumed>)        = 4
executing program
[pid  5242] <... prctl resumed>)        = 0
[pid  5240] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5238] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5237] close(3 <unfinished ...>
[pid  5236] <... clone resumed>, child_tidptr=0x5555588e7650) = 5242
[pid  5237] <... close resumed>)        = 0
./strace-static-x86_64: Process 5243 attached
[pid  5242] setpgid(0, 0 <unfinished ...>
[pid  5239] <... openat resumed>)       = 3
[pid  5237] write(1, "executing program\n", 18 <unfinished ...>
[pid  5239] write(3, "1000", 4 <unfinished ...>
[pid  5237] <... write resumed>)        = 18
[pid  5243] set_robust_list(0x5555588e7660, 24 <unfinished ...>
[pid  5239] <... write resumed>)        = 4
[pid  5243] <... set_robust_list resumed>) = 0
[pid  5242] <... setpgid resumed>)      = 0
[pid  5240] <... openat resumed>)       = 3
[pid  5239] close(3 <unfinished ...>
[pid  5238] <... clone resumed>, child_tidptr=0x5555588e7650) = 5243
[pid  5237] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5243] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5240] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5239] <... close resumed>)        = 0
[pid  5237] <... memfd_create resumed>) = 3
executing program
[pid  5243] <... prctl resumed>)        = 0
[pid  5242] <... openat resumed>)       = 3
[pid  5240] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5239] write(1, "executing program\n", 18 <unfinished ...>
[pid  5237] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5243] setpgid(0, 0 <unfinished ...>
[pid  5242] write(3, "1000", 4 <unfinished ...>
[pid  5240] close(3 <unfinished ...>
[pid  5239] <... write resumed>)        = 18
[pid  5237] <... mmap resumed>)         = 0x7fc363000000
[pid  5243] <... setpgid resumed>)      = 0
[pid  5242] <... write resumed>)        = 4
[pid  5240] <... close resumed>)        = 0
executing program
[pid  5243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5242] close(3 <unfinished ...>
[pid  5240] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5237] 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"..., 8192./strace-static-x86_64: Process 5244 attached
 <unfinished ...>
[pid  5243] <... openat resumed>)       = 3
[pid  5242] <... close resumed>)        = 0
[pid  5237] <... write resumed>)        = 8192
[pid  5243] write(3, "1000", 4 <unfinished ...>
[pid  5242] write(1, "executing program\n", 18 <unfinished ...>
[pid  5240] <... clone resumed>, child_tidptr=0x5555588e7650) = 5244
[pid  5239] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5243] <... write resumed>)        = 4
[pid  5242] <... write resumed>)        = 18
[pid  5237] munmap(0x7fc363000000, 138412032 <unfinished ...>
[pid  5243] close(3 <unfinished ...>
[pid  5242] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5243] <... close resumed>)        = 0
[pid  5242] <... memfd_create resumed>) = 3
[pid  5239] <... memfd_create resumed>) = 3
[pid  5237] <... munmap resumed>)       = 0
[pid  5244] set_robust_list(0x5555588e7660, 24executing program
 <unfinished ...>
[pid  5243] write(1, "executing program\n", 18 <unfinished ...>
[pid  5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5244] <... set_robust_list resumed>) = 0
[pid  5243] <... write resumed>)        = 18
[pid  5242] <... mmap resumed>)         = 0x7fc363000000
[pid  5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5244] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5243] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5242] 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"..., 8192 <unfinished ...>
[pid  5244] <... prctl resumed>)        = 0
[pid  5243] <... memfd_create resumed>) = 3
[pid  5242] <... write resumed>)        = 8192
[pid  5239] <... mmap resumed>)         = 0x7fc363000000
[pid  5237] <... openat resumed>)       = 4
[pid  5244] setpgid(0, 0 <unfinished ...>
[pid  5243] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5242] munmap(0x7fc363000000, 138412032 <unfinished ...>
[pid  5239] 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"..., 8192 <unfinished ...>
[pid  5237] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5244] <... setpgid resumed>)      = 0
[pid  5242] <... munmap resumed>)       = 0
[pid  5244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5242] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5242] ioctl(4, LOOP_SET_FD, 3executing program
 <unfinished ...>
[pid  5244] write(3, "1000", 4 <unfinished ...>
[pid  5243] <... mmap resumed>)         = 0x7fc363000000
[pid  5239] <... write resumed>)        = 8192
[pid  5244] <... write resumed>)        = 4
[pid  5243] 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"..., 8192 <unfinished ...>
[pid  5239] munmap(0x7fc363000000, 138412032 <unfinished ...>
[pid  5244] close(3)                    = 0
[pid  5244] write(1, "executing program\n", 18) = 18
[pid  5244] memfd_create("syzkaller", 0) = 3
[pid  5244] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fc363000000
[pid  5244] 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"..., 8192) = 8192
[pid  5244] munmap(0x7fc363000000, 138412032 <unfinished ...>
[pid  5239] <... munmap resumed>)       = 0
[pid  5243] <... write resumed>)        = 8192
[pid  5239] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5243] munmap(0x7fc363000000, 138412032 <unfinished ...>
[pid  5244] <... munmap resumed>)       = 0
[pid  5243] <... munmap resumed>)       = 0
[pid  5239] <... openat resumed>)       = 4
[pid  5244] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5243] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5239] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5244] <... openat resumed>)       = 4
[pid  5244] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5243] <... openat resumed>)       = 4
[pid  5237] <... ioctl resumed>)        = 0
[pid  5237] close(3 <unfinished ...>
[pid  5243] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5237] <... close resumed>)        = 0
[pid  5242] <... ioctl resumed>)        = 0
[pid  5242] close(3)                    = 0
[pid  5242] close(4)                    = 0
[pid  5242] mkdir("./file0", 0777)      = 0
[pid  5244] <... ioctl resumed>)        = 0
[pid  5243] <... ioctl resumed>)        = 0
[pid  5239] <... ioctl resumed>)        = 0
[pid  5237] close(4 <unfinished ...>
[pid  5244] close(3 <unfinished ...>
[pid  5243] close(3 <unfinished ...>
[pid  5242] mount("/dev/loop2", "./file0", "erofs", MS_LAZYTIME, "" <unfinished ...>
[pid  5239] close(3 <unfinished ...>
[pid  5237] <... close resumed>)        = 0
[pid  5244] <... close resumed>)        = 0
[pid  5243] <... close resumed>)        = 0
[pid  5237] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[   71.512987][ T5237] loop0: detected capacity change from 0 to 16
[   71.517950][ T5242] loop2: detected capacity change from 0 to 16
[   71.535691][ T5239] loop1: detected capacity change from 0 to 16
[   71.535734][ T5244] loop4: detected capacity change from 0 to 16
[   71.550242][ T5243] loop3: detected capacity change from 0 to 16
[pid  5237] mount("/dev/loop0", "./file0", "erofs", MS_LAZYTIME, "" <unfinished ...>
[pid  5244] close(4 <unfinished ...>
[pid  5243] close(4 <unfinished ...>
[pid  5242] <... mount resumed>)        = 0
[pid  5239] <... close resumed>)        = 0
[pid  5244] <... close resumed>)        = 0
[pid  5243] <... close resumed>)        = 0
[pid  5239] close(4 <unfinished ...>
[pid  5244] mkdir("./file0", 0777 <unfinished ...>
[pid  5243] mkdir("./file0", 0777 <unfinished ...>
[pid  5239] <... close resumed>)        = 0
[pid  5244] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5243] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5242] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5239] mkdir("./file0", 0777 <unfinished ...>
[pid  5244] mount("/dev/loop4", "./file0", "erofs", MS_LAZYTIME, "" <unfinished ...>
[pid  5239] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5242] <... openat resumed>)       = 3
[pid  5239] mount("/dev/loop1", "./file0", "erofs", MS_LAZYTIME, "" <unfinished ...>
[pid  5237] <... mount resumed>)        = 0
[pid  5243] mount("/dev/loop3", "./file0", "erofs", MS_LAZYTIME, "" <unfinished ...>
[pid  5242] chdir("./file0")            = 0
[pid  5242] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5242] pipe2( <unfinished ...>
[pid  5237] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5237] chdir("./file0")            = 0
[pid  5237] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5237] pipe2([4, 5], 0)            = 0
[pid  5237] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000004,wfdno=0x0000000000000005," <unfinished ...>
[pid  5244] <... mount resumed>)        = 0
[pid  5242] <... pipe2 resumed>[4, 5], 0) = 0
[pid  5239] <... mount resumed>)        = 0
[pid  5244] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5242] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000004,wfdno=0x0000000000000005," <unfinished ...>
[pid  5239] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5244] chdir("./file0" <unfinished ...>
[pid  5239] chdir("./file0" <unfinished ...>
[pid  5244] <... chdir resumed>)        = 0
[pid  5239] <... chdir resumed>)        = 0
[   71.582201][ T5242] erofs: (device loop2): mounted with root inode @ nid 36.
[   71.582201][ T5237] erofs: (device loop0): mounted with root inode @ nid 36.
[   71.601096][ T5244] erofs: (device loop4): mounted with root inode @ nid 36.
[   71.613100][ T5239] erofs: (device loop1): mounted with root inode @ nid 36.
[   71.624240][ T5243] erofs: (device loop3): mounted with root inode @ nid 36.
[pid  5243] <... mount resumed>)        = 0
[pid  5244] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5239] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5244] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5239] <... openat resumed>)       = -1 EBUSY (Device or resource busy)
[pid  5244] pipe2( <unfinished ...>
[pid  5243] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5239] pipe2( <unfinished ...>
[pid  5244] <... pipe2 resumed>[4, 5], 0) = 0
[pid  5243] <... openat resumed>)       = 3
[pid  5239] <... pipe2 resumed>[4, 5], 0) = 0
[pid  5243] chdir("./file0")            = 0
[pid  5243] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5243] pipe2([4, 5], 0)            = 0
[   71.637916][ T5242] ------------[ cut here ]------------
[   71.643766][ T5242] kmem_cache of name '9p-fcall-cache-(null)' already exists
[   71.659203][ T5242] WARNING: CPU: 1 PID: 5242 at mm/slab_common.c:108 __kmem_cache_create_args+0xa7/0x350
[   71.669237][ T5242] Modules linked in:
[   71.673218][ T5242] CPU: 1 UID: 0 PID: 5242 Comm: syz-executor326 Not tainted 6.12.0-rc1-next-20241003-syzkaller #0
[   71.683955][ T5242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   71.694153][ T5242] RIP: 0010:__kmem_cache_create_args+0xa7/0x350
[   71.700547][ T5242] Code: 8e 48 8b 1b 48 39 eb 74 25 48 8b 7b f8 4c 89 fe e8 8e 70 e3 09 85 c0 75 e8 90 48 c7 c7 fb a8 0b 8e 4c 89 fe e8 3a 8d 78 ff 90 <0f> 0b 90 90 4c 89 ff be 20 00 00 00 e8 e8 71 e3 09 48 85 c0 0f 85
[   71.720362][ T5242] RSP: 0018:ffffc90003b47788 EFLAGS: 00010246
[   71.726512][ T5242] RAX: 3731f6d8c1cffc00 RBX: ffff88814cb9b2e8 RCX: ffff888029543c00
[pid  5243] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000004,wfdno=0x0000000000000005," <unfinished ...>
[pid  5244] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000004,wfdno=0x0000000000000005," <unfinished ...>
[   71.734609][ T5242] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
[   71.742660][ T5242] RBP: ffffffff8ea1f740 R08: ffffffff8155d412 R09: fffffbfff1cf9fd8
[   71.751338][ T5242] R10: dffffc0000000000 R11: fffffbfff1cf9fd8 R12: 0000000000020018
[   71.759690][ T5242] R13: 0000000000000000 R14: ffffc90003b47860 R15: ffff888021b2ea40
[   71.768015][ T5242] FS:  00005555588e7380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
[   71.777189][ T5242] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   71.783918][ T5242] CR2: 0000000020002180 CR3: 0000000074134000 CR4: 00000000003526f0
[   71.792010][ T5242] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   71.800079][ T5242] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   71.808136][ T5242] Call Trace:
[   71.811424][ T5242]  <TASK>
[   71.814359][ T5242]  ? __warn+0x168/0x4e0
[   71.818598][ T5242]  ? __kmem_cache_create_args+0xa7/0x350
[   71.824278][ T5242]  ? report_bug+0x2b3/0x500
[   71.828886][ T5242]  ? __kmem_cache_create_args+0xa7/0x350
[   71.834555][ T5242]  ? handle_bug+0x60/0x90
[   71.838971][ T5242]  ? exc_invalid_op+0x1a/0x50
[   71.843691][ T5242]  ? asm_exc_invalid_op+0x1a/0x20
[   71.848824][ T5242]  ? __warn_printk+0x292/0x360
[   71.853627][ T5242]  ? __kmem_cache_create_args+0xa7/0x350
[   71.859340][ T5242]  ? __kmem_cache_create_args+0xa6/0x350
[   71.865023][ T5242]  p9_client_create+0xbc0/0x1150
[   71.870063][ T5242]  ? __pfx_p9_client_create+0x10/0x10
[   71.875468][ T5242]  ? __asan_memset+0x23/0x50
[   71.880141][ T5242]  ? __pfx_lockdep_init_map_type+0x10/0x10
[   71.885999][ T5242]  ? __raw_spin_lock_init+0x45/0x100
[   71.891373][ T5242]  v9fs_session_init+0x1e4/0x1b80
[   71.896464][ T5242]  ? __pfx_v9fs_session_init+0x10/0x10
[   71.902057][ T5242]  ? __kasan_kmalloc+0x98/0xb0
[   71.906910][ T5242]  ? __kmalloc_cache_noprof+0x243/0x390
[   71.912509][ T5242]  ? v9fs_mount+0xb2/0xaa0
[   71.917038][ T5242]  v9fs_mount+0xcf/0xaa0
[   71.921325][ T5242]  ? __pfx_aa_get_newest_label+0x10/0x10
[   71.927051][ T5242]  ? __pfx_v9fs_mount+0x10/0x10
[   71.931952][ T5242]  ? __kmalloc_cache_noprof+0x243/0x390
[   71.937588][ T5242]  legacy_get_tree+0xee/0x190
[   71.942307][ T5242]  ? __pfx_v9fs_mount+0x10/0x10
[   71.947247][ T5242]  vfs_get_tree+0x90/0x2b0
[   71.951727][ T5242]  do_new_mount+0x2be/0xb40
[   71.956270][ T5242]  ? __pfx_do_new_mount+0x10/0x10
[   71.961421][ T5242]  __se_sys_mount+0x2d6/0x3c0
[   71.966158][ T5242]  ? __pfx___se_sys_mount+0x10/0x10
[   71.971460][ T5242]  ? exc_page_fault+0x590/0x8c0
[   71.976379][ T5242]  ? __x64_sys_mount+0x20/0xc0
[   71.981230][ T5242]  do_syscall_64+0xf3/0x230
[   71.985796][ T5242]  ? clear_bhb_loop+0x35/0x90
[   71.990604][ T5242]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   71.996538][ T5242] RIP: 0033:0x7fc36b611ec9
[   72.001058][ T5242] 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
[   72.023560][ T5242] RSP: 002b:00007fff77b5fce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   72.032389][ T5242] RAX: ffffffffffffffda RBX: 00007fc36b65b095 RCX: 00007fc36b611ec9
[   72.040442][ T5242] RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000
[   72.048523][ T5242] RBP: 00000000000f4240 R08: 0000000020000140 R09: 00005555588e8378
[   72.056530][ T5242] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[   72.064604][ T5242] R13: 00007fff77b5fd20 R14: 00007fff77b5fd0c R15: 00007fc36b65b03b
[   72.073100][ T5242]  </TASK>
[   72.076129][ T5242] Kernel panic - not syncing: kernel: panic_on_warn set ...
[   72.083411][ T5242] CPU: 1 UID: 0 PID: 5242 Comm: syz-executor326 Not tainted 6.12.0-rc1-next-20241003-syzkaller #0
[   72.094000][ T5242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   72.104062][ T5242] Call Trace:
[   72.107346][ T5242]  <TASK>
[   72.110276][ T5242]  dump_stack_lvl+0x241/0x360
[   72.114972][ T5242]  ? __pfx_dump_stack_lvl+0x10/0x10
[   72.120185][ T5242]  ? __pfx__printk+0x10/0x10
[   72.124794][ T5242]  ? vscnprintf+0x5d/0x90
[   72.129138][ T5242]  panic+0x349/0x880
[   72.133152][ T5242]  ? __warn+0x177/0x4e0
[   72.137428][ T5242]  ? __pfx_panic+0x10/0x10
[   72.141954][ T5242]  __warn+0x34b/0x4e0
[   72.145981][ T5242]  ? __kmem_cache_create_args+0xa7/0x350
[   72.151646][ T5242]  report_bug+0x2b3/0x500
[   72.155999][ T5242]  ? __kmem_cache_create_args+0xa7/0x350
[   72.161683][ T5242]  handle_bug+0x60/0x90
[   72.165865][ T5242]  exc_invalid_op+0x1a/0x50
[   72.170406][ T5242]  asm_exc_invalid_op+0x1a/0x20
[   72.175278][ T5242] RIP: 0010:__kmem_cache_create_args+0xa7/0x350
[   72.181539][ T5242] Code: 8e 48 8b 1b 48 39 eb 74 25 48 8b 7b f8 4c 89 fe e8 8e 70 e3 09 85 c0 75 e8 90 48 c7 c7 fb a8 0b 8e 4c 89 fe e8 3a 8d 78 ff 90 <0f> 0b 90 90 4c 89 ff be 20 00 00 00 e8 e8 71 e3 09 48 85 c0 0f 85
[   72.201171][ T5242] RSP: 0018:ffffc90003b47788 EFLAGS: 00010246
[   72.207277][ T5242] RAX: 3731f6d8c1cffc00 RBX: ffff88814cb9b2e8 RCX: ffff888029543c00
[   72.215263][ T5242] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
[   72.223274][ T5242] RBP: ffffffff8ea1f740 R08: ffffffff8155d412 R09: fffffbfff1cf9fd8
[   72.231272][ T5242] R10: dffffc0000000000 R11: fffffbfff1cf9fd8 R12: 0000000000020018
[   72.239261][ T5242] R13: 0000000000000000 R14: ffffc90003b47860 R15: ffff888021b2ea40
[   72.247256][ T5242]  ? __warn_printk+0x292/0x360
[   72.252141][ T5242]  ? __kmem_cache_create_args+0xa6/0x350
[   72.257795][ T5242]  p9_client_create+0xbc0/0x1150
[   72.262759][ T5242]  ? __pfx_p9_client_create+0x10/0x10
[   72.268145][ T5242]  ? __asan_memset+0x23/0x50
[   72.272751][ T5242]  ? __pfx_lockdep_init_map_type+0x10/0x10
[   72.278731][ T5242]  ? __raw_spin_lock_init+0x45/0x100
[   72.284148][ T5242]  v9fs_session_init+0x1e4/0x1b80
[   72.289207][ T5242]  ? __pfx_v9fs_session_init+0x10/0x10
[   72.294684][ T5242]  ? __kasan_kmalloc+0x98/0xb0
[   72.299472][ T5242]  ? __kmalloc_cache_noprof+0x243/0x390
[   72.305033][ T5242]  ? v9fs_mount+0xb2/0xaa0
[   72.309472][ T5242]  v9fs_mount+0xcf/0xaa0
[   72.313735][ T5242]  ? __pfx_aa_get_newest_label+0x10/0x10
[   72.319390][ T5242]  ? __pfx_v9fs_mount+0x10/0x10
[   72.324263][ T5242]  ? __kmalloc_cache_noprof+0x243/0x390
[   72.329837][ T5242]  legacy_get_tree+0xee/0x190
[   72.334528][ T5242]  ? __pfx_v9fs_mount+0x10/0x10
[   72.339419][ T5242]  vfs_get_tree+0x90/0x2b0
[   72.343855][ T5242]  do_new_mount+0x2be/0xb40
[   72.348382][ T5242]  ? __pfx_do_new_mount+0x10/0x10
[   72.353429][ T5242]  __se_sys_mount+0x2d6/0x3c0
[   72.358129][ T5242]  ? __pfx___se_sys_mount+0x10/0x10
[   72.363342][ T5242]  ? exc_page_fault+0x590/0x8c0
[   72.368213][ T5242]  ? __x64_sys_mount+0x20/0xc0
[   72.372995][ T5242]  do_syscall_64+0xf3/0x230
[   72.377646][ T5242]  ? clear_bhb_loop+0x35/0x90
[   72.382385][ T5242]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   72.388393][ T5242] RIP: 0033:0x7fc36b611ec9
[   72.392832][ T5242] 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
[   72.412475][ T5242] RSP: 002b:00007fff77b5fce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   72.420924][ T5242] RAX: ffffffffffffffda RBX: 00007fc36b65b095 RCX: 00007fc36b611ec9
[   72.428920][ T5242] RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000
[   72.436923][ T5242] RBP: 00000000000f4240 R08: 0000000020000140 R09: 00005555588e8378
[   72.444922][ T5242] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
[   72.452909][ T5242] R13: 00007fff77b5fd20 R14: 00007fff77b5fd0c R15: 00007fc36b65b03b
[   72.460916][ T5242]  </TASK>
[   72.464201][ T5242] Kernel Offset: disabled
[   72.468596][ T5242] Rebooting in 86400 seconds..