./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4271495713

<...>
Warning: Permanently added '10.128.0.86' (ED25519) to the list of known hosts.
execve("./syz-executor4271495713", ["./syz-executor4271495713"], 0x7ffc1cb256c0 /* 10 vars */) = 0
brk(NULL)                               = 0x5555588ff000
brk(0x5555588ffd00)                     = 0x5555588ffd00
arch_prctl(ARCH_SET_FS, 0x5555588ff380) = 0
set_tid_address(0x5555588ff650)         = 5838
set_robust_list(0x5555588ff660, 24)     = 0
rseq(0x5555588ffca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor4271495713", 4096) = 28
getrandom("\x0d\xb8\x97\xac\x02\xcb\xa3\x0b", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x5555588ffd00
brk(0x555558920d00)                     = 0x555558920d00
brk(0x555558921000)                     = 0x555558921000
mprotect(0x7fac6f057000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5839 attached
 <unfinished ...>
[pid  5839] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5838] <... clone resumed>, child_tidptr=0x5555588ff650) = 5839
[pid  5839] <... set_robust_list resumed>) = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5839] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
./strace-static-x86_64: Process 5840 attached
[pid  5839] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5838] <... clone resumed>, child_tidptr=0x5555588ff650) = 5840
[pid  5840] set_robust_list(0x5555588ff660, 24) = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5839] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5840] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
./strace-static-x86_64: Process 5841 attached
[pid  5839] close(3 <unfinished ...>
[pid  5838] <... clone resumed>, child_tidptr=0x5555588ff650) = 5841
[pid  5841] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5840] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5839] <... close resumed>)        = 0
./strace-static-x86_64: Process 5842 attached
[pid  5841] <... set_robust_list resumed>) = 0
[pid  5840] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5838] <... clone resumed>, child_tidptr=0x5555588ff650) = 5842
[pid  5842] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5841] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5840] close(3 <unfinished ...>
[pid  5839] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5842] <... set_robust_list resumed>) = 0
[pid  5838] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5842] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5840] <... close resumed>)        = 0
./strace-static-x86_64: Process 5843 attached
[pid  5840] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached
./strace-static-x86_64: Process 5844 attached
 <unfinished ...>
[pid  5841] <... openat resumed>)       = 3
[pid  5843] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5842] <... openat resumed>)       = 3
[pid  5843] <... set_robust_list resumed>) = 0
[pid  5845] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5844] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5843] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5842] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5841] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5839] <... clone resumed>, child_tidptr=0x5555588ff650) = 5843
[pid  5844] <... set_robust_list resumed>) = 0
[pid  5843] <... prctl resumed>)        = 0
[pid  5843] setpgid(0, 0 <unfinished ...>
[pid  5841] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5838] <... clone resumed>, child_tidptr=0x5555588ff650) = 5844
[pid  5845] <... set_robust_list resumed>) = 0
[pid  5844] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5843] <... setpgid resumed>)      = 0
[pid  5842] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5841] close(3 <unfinished ...>
[pid  5840] <... clone resumed>, child_tidptr=0x5555588ff650) = 5845
[pid  5845] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5842] close(3 <unfinished ...>
[pid  5841] <... close resumed>)        = 0
[pid  5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5845] <... prctl resumed>)        = 0
[pid  5844] <... openat resumed>)       = 3
[pid  5843] <... openat resumed>)       = 3
[pid  5842] <... close resumed>)        = 0
[pid  5845] setpgid(0, 0 <unfinished ...>
[pid  5842] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5847 attached
 <unfinished ...>
[pid  5845] <... setpgid resumed>)      = 0
[pid  5844] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5843] write(3, "1000", 4 <unfinished ...>
[pid  5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5844] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5843] <... write resumed>)        = 4
[pid  5847] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5843] close(3 <unfinished ...>
[pid  5845] <... openat resumed>)       = 3
[pid  5843] <... close resumed>)        = 0
[pid  5845] write(3, "1000", 4executing program
executing program
 <unfinished ...>
[pid  5843] write(1, "executing program\n", 18 <unfinished ...>
[pid  5845] <... write resumed>)        = 4
[pid  5847] <... set_robust_list resumed>) = 0
[pid  5843] <... write resumed>)        = 18
[pid  5841] <... clone resumed>, child_tidptr=0x5555588ff650) = 5847
./strace-static-x86_64: Process 5848 attached
[pid  5847] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5845] close(3 <unfinished ...>
[pid  5848] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5845] <... close resumed>)        = 0
[pid  5848] <... set_robust_list resumed>) = 0
[pid  5845] write(1, "executing program\n", 18 <unfinished ...>
[pid  5842] <... clone resumed>, child_tidptr=0x5555588ff650) = 5848
[pid  5844] close(3 <unfinished ...>
[pid  5843] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5848] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5845] <... write resumed>)        = 18
[pid  5844] <... close resumed>)        = 0
[pid  5845] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5848] <... prctl resumed>)        = 0
[pid  5848] setpgid(0, 0)               = 0
[pid  5848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5845] <... memfd_create resumed>) = 3
[pid  5848] write(3, "1000", 4 <unfinished ...>
[pid  5847] <... prctl resumed>)        = 0
[pid  5845] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5844] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5843] <... memfd_create resumed>) = 3
./strace-static-x86_64: Process 5849 attached
[pid  5848] <... write resumed>)        = 4
[pid  5847] setpgid(0, 0 <unfinished ...>
[pid  5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5844] <... clone resumed>, child_tidptr=0x5555588ff650) = 5849
[pid  5845] <... mmap resumed>)         = 0x7fac66a00000
[pid  5843] <... mmap resumed>)         = 0x7fac66a00000
[pid  5849] set_robust_list(0x5555588ff660, 24 <unfinished ...>
[pid  5848] close(3 <unfinished ...>
[pid  5847] <... setpgid resumed>)      = 0
[pid  5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5848] <... close resumed>)        = 0
[pid  5847] <... openat resumed>)       = 3
executing program
executing program
[pid  5848] write(1, "executing program\n", 18 <unfinished ...>
[pid  5847] write(3, "1000", 4 <unfinished ...>
[pid  5848] <... write resumed>)        = 18
[pid  5847] <... write resumed>)        = 4
[pid  5848] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5847] close(3)                    = 0
[pid  5847] write(1, "executing program\n", 18) = 18
[pid  5847] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5849] <... set_robust_list resumed>) = 0
[pid  5849] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5848] <... memfd_create resumed>) = 3
[pid  5849] <... prctl resumed>)        = 0
[pid  5849] setpgid(0, 0 <unfinished ...>
[pid  5848] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5847] <... memfd_create resumed>) = 3
[pid  5849] <... setpgid resumed>)      = 0
executing program
[pid  5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5848] <... mmap resumed>)         = 0x7fac66a00000
[pid  5847] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5849] <... openat resumed>)       = 3
[pid  5847] <... mmap resumed>)         = 0x7fac66a00000
[pid  5849] write(3, "1000", 4)         = 4
[pid  5849] close(3)                    = 0
[pid  5849] write(1, "executing program\n", 18) = 18
[pid  5849] memfd_create("syzkaller", 0) = 3
[pid  5849] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fac66a00000
[   91.901768][    T9] cfg80211: failed to load regulatory.db
[pid  5845] 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"..., 16777216 <unfinished ...>
[pid  5848] 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"..., 16777216 <unfinished ...>
[pid  5847] 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"..., 16777216 <unfinished ...>
[pid  5843] 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"..., 16777216 <unfinished ...>
[pid  5849] 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"..., 16777216 <unfinished ...>
[pid  5848] <... write resumed>)        = 16777216
[pid  5848] munmap(0x7fac66a00000, 138412032 <unfinished ...>
[pid  5845] <... write resumed>)        = 16777216
[pid  5845] munmap(0x7fac66a00000, 138412032 <unfinished ...>
[pid  5843] <... write resumed>)        = 16777216
[pid  5849] <... write resumed>)        = 16777216
[pid  5847] <... write resumed>)        = 16777216
[pid  5849] munmap(0x7fac66a00000, 138412032 <unfinished ...>
[pid  5847] munmap(0x7fac66a00000, 138412032 <unfinished ...>
[pid  5843] munmap(0x7fac66a00000, 138412032 <unfinished ...>
[pid  5848] <... munmap resumed>)       = 0
[pid  5848] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid  5848] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5845] <... munmap resumed>)       = 0
[pid  5848] close(3)                    = 0
[pid  5845] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5849] <... munmap resumed>)       = 0
[   92.919945][ T5848] loop3: detected capacity change from 0 to 32768
[pid  5848] close(4 <unfinished ...>
[pid  5849] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5848] <... close resumed>)        = 0
[pid  5848] mkdir("./file1", 0777 <unfinished ...>
[pid  5845] <... openat resumed>)       = 4
[pid  5845] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5849] <... openat resumed>)       = 4
[pid  5848] <... mkdir resumed>)        = 0
[pid  5843] <... munmap resumed>)       = 0
[pid  5849] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5845] <... ioctl resumed>)        = 0
[pid  5848] mount("/dev/loop3", "./file1", "gfs2", 0, "" <unfinished ...>
[pid  5847] <... munmap resumed>)       = 0
[pid  5845] close(3 <unfinished ...>
[pid  5843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5843] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5847] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid  5847] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid  5849] <... ioctl resumed>)        = 0
[pid  5845] <... close resumed>)        = 0
[pid  5849] close(3)                    = 0
[pid  5845] close(4 <unfinished ...>
[pid  5849] close(4 <unfinished ...>
[pid  5845] <... close resumed>)        = 0
[pid  5849] <... close resumed>)        = 0
[pid  5849] mkdir("./file1", 0777)      = -1 EEXIST (File exists)
[pid  5845] mkdir("./file1", 0777 <unfinished ...>
[pid  5849] mount("/dev/loop4", "./file1", "gfs2", 0, "" <unfinished ...>
[pid  5845] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5845] mount("/dev/loop1", "./file1", "gfs2", 0, "" <unfinished ...>
[pid  5843] <... ioctl resumed>)        = 0
[pid  5843] close(3)                    = 0
[pid  5843] close(4)                    = 0
[   92.975027][ T5845] loop1: detected capacity change from 0 to 32768
[   92.984601][ T5849] loop4: detected capacity change from 0 to 32768
[   93.004826][ T5843] loop0: detected capacity change from 0 to 32768
[   93.009308][ T5847] loop2: detected capacity change from 0 to 32768
[pid  5843] mkdir("./file1", 0777)      = -1 EEXIST (File exists)
[pid  5843] mount("/dev/loop0", "./file1", "gfs2", 0, "" <unfinished ...>
[pid  5847] <... ioctl resumed>)        = 0
[pid  5847] close(3)                    = 0
[pid  5847] close(4)                    = 0
[pid  5847] mkdir("./file1", 0777)      = -1 EEXIST (File exists)
[   93.075953][ T5849] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[   93.114460][ T5848] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   93.125688][ T5845] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   93.158689][ T5843] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   93.164184][ T5849] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[   93.166140][ T5843] CPU: 0 UID: 0 PID: 5843 Comm: syz-executor427 Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full) 
[   93.166168][ T5843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   93.166191][ T5843] Call Trace:
[   93.166201][ T5843]  <TASK>
[   93.166211][ T5843]  dump_stack_lvl+0x189/0x250
[   93.166261][ T5843]  ? kernfs_path_from_node+0x2c/0x260
[   93.166307][ T5843]  ? __pfx_dump_stack_lvl+0x10/0x10
[   93.166328][ T5843]  ? __pfx__printk+0x10/0x10
[   93.166356][ T5843]  ? kernfs_path_from_node+0x2c/0x260
[   93.166386][ T5843]  ? kernfs_path_from_node+0x2c/0x260
[   93.166419][ T5843]  ? kernfs_path_from_node+0x22c/0x260
[   93.166448][ T5843]  ? kernfs_path_from_node+0x2c/0x260
[   93.166483][ T5843]  sysfs_create_dir_ns+0x259/0x280
[   93.166517][ T5843]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[   93.166550][ T5843]  ? do_raw_spin_unlock+0x122/0x240
[   93.166584][ T5843]  kobject_add_internal+0x59f/0xb40
[   93.166624][ T5843]  kobject_init_and_add+0x125/0x190
[   93.166654][ T5843]  ? __pfx_kobject_init_and_add+0x10/0x10
[   93.166679][ T5843]  ? __raw_spin_lock_init+0x45/0x100
[   93.166709][ T5843]  ? __init_swait_queue_head+0xa9/0x150
[   93.166741][ T5843]  gfs2_sys_fs_add+0x237/0x470
[   93.166768][ T5843]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[   93.166799][ T5843]  ? is_dynamic_key+0xd6/0x1c0
[   93.166831][ T5843]  ? __pfx_alloc_workqueue+0x10/0x10
[   93.166876][ T5843]  gfs2_fill_super+0x1348/0x2010
[   93.166925][ T5843]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.166960][ T5843]  ? sb_set_blocksize+0x104/0x180
[   93.167004][ T5843]  ? setup_bdev_super+0x4c1/0x5b0
[   93.167033][ T5843]  get_tree_bdev_flags+0x40b/0x4d0
[   93.167058][ T5843]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.167089][ T5843]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[   93.167115][ T5843]  ? rcu_is_watching+0x15/0xb0
[   93.167144][ T5843]  gfs2_get_tree+0x51/0x1e0
[   93.167178][ T5843]  vfs_get_tree+0x8f/0x2b0
[   93.167207][ T5843]  do_new_mount+0x24a/0xa40
[   93.167245][ T5843]  __se_sys_mount+0x317/0x410
[   93.167281][ T5843]  ? __pfx___se_sys_mount+0x10/0x10
[   93.167308][ T5843]  ? rcu_is_watching+0x15/0xb0
[   93.167336][ T5843]  ? __x64_sys_mount+0x20/0xc0
[   93.167368][ T5843]  do_syscall_64+0xfa/0x3b0
[   93.167386][ T5843]  ? lockdep_hardirqs_on+0x9c/0x150
[   93.167419][ T5843]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.167442][ T5843]  ? clear_bhb_loop+0x60/0xb0
[   93.167471][ T5843]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.167493][ T5843] RIP: 0033:0x7fac6efd2eda
[   93.167518][ T5843] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   93.167537][ T5843] RSP: 002b:00007ffca723a7f8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
[   93.167561][ T5843] RAX: ffffffffffffffda RBX: 00007ffca723a810 RCX: 00007fac6efd2eda
[   93.167579][ T5843] RDX: 0000200000000180 RSI: 00002000000000c0 RDI: 00007ffca723a810
[   93.167595][ T5843] RBP: 00002000000000c0 R08: 00007ffca723a850 R09: 00000000000125aa
[   93.167611][ T5843] R10: 0000000000000000 R11: 0000000000000282 R12: 0000200000000180
[   93.167626][ T5843] R13: 00007ffca723a850 R14: 0000000000000003 R15: 0000000000000000
[   93.167660][ T5843]  </TASK>
[   93.174872][ T5847] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[   93.195033][ T5848] CPU: 1 UID: 0 PID: 5848 Comm: syz-executor427 Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full) 
[   93.195067][ T5848] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   93.195082][ T5848] Call Trace:
[   93.195090][ T5848]  <TASK>
[   93.195100][ T5848]  dump_stack_lvl+0x189/0x250
[   93.195129][ T5848]  ? kernfs_path_from_node+0x2c/0x260
[   93.195159][ T5848]  ? __pfx_dump_stack_lvl+0x10/0x10
[   93.195178][ T5848]  ? __pfx__printk+0x10/0x10
[   93.195202][ T5848]  ? kernfs_path_from_node+0x2c/0x260
[   93.195228][ T5848]  ? kernfs_path_from_node+0x2c/0x260
[   93.195259][ T5848]  ? kernfs_path_from_node+0x22c/0x260
[   93.195286][ T5848]  ? kernfs_path_from_node+0x2c/0x260
[   93.195318][ T5848]  sysfs_create_dir_ns+0x259/0x280
[   93.195350][ T5848]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[   93.195381][ T5848]  ? do_raw_spin_unlock+0x122/0x240
[   93.195411][ T5848]  kobject_add_internal+0x59f/0xb40
[   93.195443][ T5848]  kobject_init_and_add+0x125/0x190
[   93.195471][ T5848]  ? __pfx_kobject_init_and_add+0x10/0x10
[   93.195494][ T5848]  ? __raw_spin_lock_init+0x45/0x100
[   93.195520][ T5848]  ? __init_swait_queue_head+0xa9/0x150
[   93.195550][ T5848]  gfs2_sys_fs_add+0x237/0x470
[   93.195578][ T5848]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[   93.195610][ T5848]  ? is_dynamic_key+0xd6/0x1c0
[   93.195643][ T5848]  ? __pfx_alloc_workqueue+0x10/0x10
[   93.195689][ T5848]  gfs2_fill_super+0x1348/0x2010
[   93.195748][ T5848]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.195784][ T5848]  ? sb_set_blocksize+0x104/0x180
[   93.195821][ T5848]  ? setup_bdev_super+0x4c1/0x5b0
[   93.195851][ T5848]  get_tree_bdev_flags+0x40b/0x4d0
[   93.195875][ T5848]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.195906][ T5848]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[   93.195932][ T5848]  ? rcu_is_watching+0x15/0xb0
[   93.195962][ T5848]  gfs2_get_tree+0x51/0x1e0
[   93.195996][ T5848]  vfs_get_tree+0x8f/0x2b0
[   93.196023][ T5848]  do_new_mount+0x24a/0xa40
[   93.196061][ T5848]  __se_sys_mount+0x317/0x410
[   93.196097][ T5848]  ? __pfx___se_sys_mount+0x10/0x10
[   93.196123][ T5848]  ? rcu_is_watching+0x15/0xb0
[   93.196152][ T5848]  ? __x64_sys_mount+0x20/0xc0
[   93.196184][ T5848]  do_syscall_64+0xfa/0x3b0
[   93.196204][ T5848]  ? lockdep_hardirqs_on+0x9c/0x150
[   93.196237][ T5848]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.196260][ T5848]  ? clear_bhb_loop+0x60/0xb0
[   93.196293][ T5848]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.196315][ T5848] RIP: 0033:0x7fac6efd2eda
[   93.196336][ T5848] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   93.196355][ T5848] RSP: 002b:00007ffca723a7f8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
[   93.196379][ T5848] RAX: ffffffffffffffda RBX: 00007ffca723a810 RCX: 00007fac6efd2eda
[   93.196395][ T5848] RDX: 0000200000000180 RSI: 00002000000000c0 RDI: 00007ffca723a810
[   93.196411][ T5848] RBP: 00002000000000c0 R08: 00007ffca723a850 R09: 00000000000125aa
[   93.196427][ T5848] R10: 0000000000000000 R11: 0000000000000282 R12: 0000200000000180
[   93.196441][ T5848] R13: 00007ffca723a850 R14: 0000000000000003 R15: 0000000000000000
[   93.196475][ T5848]  </TASK>
[   93.197813][ T5845] CPU: 1 UID: 0 PID: 5845 Comm: syz-executor427 Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full) 
[   93.197844][ T5845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   93.197857][ T5845] Call Trace:
[   93.197866][ T5845]  <TASK>
[   93.197875][ T5845]  dump_stack_lvl+0x189/0x250
[   93.197901][ T5845]  ? kernfs_path_from_node+0x2c/0x260
[   93.197934][ T5845]  ? __pfx_dump_stack_lvl+0x10/0x10
[   93.197957][ T5845]  ? __pfx__printk+0x10/0x10
[   93.197983][ T5845]  ? kernfs_path_from_node+0x2c/0x260
[   93.198012][ T5845]  ? kernfs_path_from_node+0x2c/0x260
[   93.198045][ T5845]  ? kernfs_path_from_node+0x22c/0x260
[   93.198075][ T5845]  ? kernfs_path_from_node+0x2c/0x260
[   93.198110][ T5845]  sysfs_create_dir_ns+0x259/0x280
[   93.198144][ T5845]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[   93.198177][ T5845]  ? do_raw_spin_unlock+0x122/0x240
[   93.198211][ T5845]  kobject_add_internal+0x59f/0xb40
[   93.198245][ T5845]  kobject_init_and_add+0x125/0x190
[   93.198275][ T5845]  ? __pfx_kobject_init_and_add+0x10/0x10
[   93.198299][ T5845]  ? __raw_spin_lock_init+0x45/0x100
[   93.198329][ T5845]  ? __init_swait_queue_head+0xa9/0x150
[   93.198361][ T5845]  gfs2_sys_fs_add+0x237/0x470
[   93.198387][ T5845]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[   93.198417][ T5845]  ? is_dynamic_key+0xd6/0x1c0
[   93.198449][ T5845]  ? __pfx_alloc_workqueue+0x10/0x10
[   93.198495][ T5845]  gfs2_fill_super+0x1348/0x2010
[   93.198545][ T5845]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.198581][ T5845]  ? sb_set_blocksize+0x104/0x180
[   93.198618][ T5845]  ? setup_bdev_super+0x4c1/0x5b0
[   93.198646][ T5845]  get_tree_bdev_flags+0x40b/0x4d0
[   93.198672][ T5845]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.198702][ T5845]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[   93.198736][ T5845]  ? rcu_is_watching+0x15/0xb0
[   93.198766][ T5845]  gfs2_get_tree+0x51/0x1e0
[   93.198799][ T5845]  vfs_get_tree+0x8f/0x2b0
[   93.198828][ T5845]  do_new_mount+0x24a/0xa40
[   93.198866][ T5845]  __se_sys_mount+0x317/0x410
[   93.198901][ T5845]  ? __pfx___se_sys_mount+0x10/0x10
[   93.198924][ T5845]  ? rcu_is_watching+0x15/0xb0
[   93.198949][ T5845]  ? __x64_sys_mount+0x20/0xc0
[   93.198978][ T5845]  do_syscall_64+0xfa/0x3b0
[   93.198996][ T5845]  ? lockdep_hardirqs_on+0x9c/0x150
[   93.199026][ T5845]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.199046][ T5845]  ? clear_bhb_loop+0x60/0xb0
[   93.199072][ T5845]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.199093][ T5845] RIP: 0033:0x7fac6efd2eda
[   93.199111][ T5845] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   93.199128][ T5845] RSP: 002b:00007ffca723a7f8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
[   93.199149][ T5845] RAX: ffffffffffffffda RBX: 00007ffca723a810 RCX: 00007fac6efd2eda
[   93.199164][ T5845] RDX: 0000200000000180 RSI: 00002000000000c0 RDI: 00007ffca723a810
[   93.199178][ T5845] RBP: 00002000000000c0 R08: 00007ffca723a850 R09: 00000000000125aa
[   93.199192][ T5845] R10: 0000000000000000 R11: 0000000000000282 R12: 0000200000000180
[   93.199206][ T5845] R13: 00007ffca723a850 R14: 0000000000000003 R15: 0000000000000000
[   93.199237][ T5845]  </TASK>
[   93.199266][ T5845] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[   93.199284][ T5845] gfs2: fsid=syz:syz: error -17 adding sysfs files
[   93.202973][ T5848] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[   93.217025][ T5843] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[   93.239496][ T5845] ==================================================================
[   93.252500][ T5843] gfs2: fsid=syz:syz: error -17 adding sysfs files
[   93.255321][ T5845] BUG: KASAN: null-ptr-deref in gfs2_drop_inode+0x20c/0x3a0
[   93.260593][ T5847] CPU: 0 UID: 0 PID: 5847 Comm: syz-executor427 Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full) 
[   93.260624][ T5847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   93.260638][ T5847] Call Trace:
[   93.260647][ T5847]  <TASK>
[   93.260656][ T5847]  dump_stack_lvl+0x189/0x250
[   93.260683][ T5847]  ? kernfs_path_from_node+0x2c/0x260
[   93.260716][ T5847]  ? __pfx_dump_stack_lvl+0x10/0x10
[   93.260738][ T5847]  ? __pfx__printk+0x10/0x10
[   93.260766][ T5847]  ? kernfs_path_from_node+0x2c/0x260
[   93.260795][ T5847]  ? kernfs_path_from_node+0x2c/0x260
[   93.260828][ T5847]  ? kernfs_path_from_node+0x22c/0x260
[   93.260858][ T5847]  ? kernfs_path_from_node+0x2c/0x260
[   93.260892][ T5847]  sysfs_create_dir_ns+0x259/0x280
[   93.260926][ T5847]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[   93.260968][ T5847]  ? do_raw_spin_unlock+0x122/0x240
[   93.261001][ T5847]  kobject_add_internal+0x59f/0xb40
[   93.261036][ T5847]  kobject_init_and_add+0x125/0x190
[   93.261066][ T5847]  ? __pfx_kobject_init_and_add+0x10/0x10
[   93.261091][ T5847]  ? __raw_spin_lock_init+0x45/0x100
[   93.261120][ T5847]  ? __init_swait_queue_head+0xa9/0x150
[   93.261153][ T5847]  gfs2_sys_fs_add+0x237/0x470
[   93.261179][ T5847]  ? __pfx_gfs2_sys_fs_add+0x10/0x10
[   93.261208][ T5847]  ? is_dynamic_key+0xd6/0x1c0
[   93.261241][ T5847]  ? __pfx_alloc_workqueue+0x10/0x10
[   93.261286][ T5847]  gfs2_fill_super+0x1348/0x2010
[   93.261336][ T5847]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.261371][ T5847]  ? sb_set_blocksize+0x104/0x180
[   93.261408][ T5847]  ? setup_bdev_super+0x4c1/0x5b0
[   93.261437][ T5847]  get_tree_bdev_flags+0x40b/0x4d0
[   93.261462][ T5847]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.261493][ T5847]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[   93.261520][ T5847]  ? rcu_is_watching+0x15/0xb0
[   93.261548][ T5847]  gfs2_get_tree+0x51/0x1e0
[   93.261581][ T5847]  vfs_get_tree+0x8f/0x2b0
[   93.261610][ T5847]  do_new_mount+0x24a/0xa40
[   93.261648][ T5847]  __se_sys_mount+0x317/0x410
[   93.261685][ T5847]  ? __pfx___se_sys_mount+0x10/0x10
[   93.261711][ T5847]  ? rcu_is_watching+0x15/0xb0
[   93.261740][ T5847]  ? __x64_sys_mount+0x20/0xc0
[   93.261771][ T5847]  do_syscall_64+0xfa/0x3b0
[   93.261791][ T5847]  ? lockdep_hardirqs_on+0x9c/0x150
[   93.261823][ T5847]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.261846][ T5847]  ? clear_bhb_loop+0x60/0xb0
[   93.261875][ T5847]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.261897][ T5847] RIP: 0033:0x7fac6efd2eda
[   93.261918][ T5847] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   93.261937][ T5847] RSP: 002b:00007ffca723a7f8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
[   93.261966][ T5847] RAX: ffffffffffffffda RBX: 00007ffca723a810 RCX: 00007fac6efd2eda
[   93.261983][ T5847] RDX: 0000200000000180 RSI: 00002000000000c0 RDI: 00007ffca723a810
[   93.262000][ T5847] RBP: 00002000000000c0 R08: 00007ffca723a850 R09: 00000000000125aa
[   93.262016][ T5847] R10: 0000000000000000 R11: 0000000000000282 R12: 0000200000000180
[   93.262031][ T5847] R13: 00007ffca723a850 R14: 0000000000000003 R15: 0000000000000000
[   93.262067][ T5847]  </TASK>
[   93.262097][ T5847] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[   93.265720][ T5845] Read of size 8 at addr 00000000000000a8 by task syz-executor427/5845
[   93.271679][ T5847] gfs2: fsid=syz:syz: error -17 adding sysfs files
[   93.276705][ T5845] 
[   93.276725][ T5845] CPU: 1 UID: 0 PID: 5845 Comm: syz-executor427 Not tainted 6.15.0-next-20250530-syzkaller #0 PREEMPT(full) 
[   93.276751][ T5845] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[   93.276763][ T5845] Call Trace:
[   93.276773][ T5845]  <TASK>
[   93.276783][ T5845]  dump_stack_lvl+0x189/0x250
[   93.276811][ T5845]  ? __pfx_dump_stack_lvl+0x10/0x10
[   93.276833][ T5845]  ? _raw_spin_lock_irqsave+0xb3/0xf0
[   93.276871][ T5845]  ? gfs2_drop_inode+0x20c/0x3a0
[   93.276908][ T5845]  ? gfs2_drop_inode+0x20c/0x3a0
[   93.276940][ T5845]  kasan_report+0x118/0x150
[   93.276967][ T5845]  ? gfs2_drop_inode+0x20c/0x3a0
[   93.277005][ T5845]  kasan_check_range+0x2b0/0x2c0
[   93.277033][ T5845]  gfs2_drop_inode+0x20c/0x3a0
[   93.277069][ T5845]  iput+0x45d/0x9d0
[   93.277102][ T5845]  gfs2_fill_super+0x1418/0x2010
[   93.277140][ T5845]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.277172][ T5845]  ? sb_set_blocksize+0x104/0x180
[   93.277207][ T5845]  ? setup_bdev_super+0x4c1/0x5b0
[   93.277232][ T5845]  get_tree_bdev_flags+0x40b/0x4d0
[   93.277256][ T5845]  ? __pfx_gfs2_fill_super+0x10/0x10
[   93.277286][ T5845]  ? __pfx_get_tree_bdev_flags+0x10/0x10
[   93.277310][ T5845]  ? rcu_is_watching+0x15/0xb0
[   93.277335][ T5845]  gfs2_get_tree+0x51/0x1e0
[   93.277365][ T5845]  vfs_get_tree+0x8f/0x2b0
[   93.277391][ T5845]  do_new_mount+0x24a/0xa40
[   93.277423][ T5845]  __se_sys_mount+0x317/0x410
[   93.277454][ T5845]  ? __pfx___se_sys_mount+0x10/0x10
[   93.277480][ T5845]  ? rcu_is_watching+0x15/0xb0
[   93.277504][ T5845]  ? __x64_sys_mount+0x20/0xc0
[   93.277533][ T5845]  do_syscall_64+0xfa/0x3b0
[   93.277554][ T5845]  ? lockdep_hardirqs_on+0x9c/0x150
[   93.277586][ T5845]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.277608][ T5845]  ? clear_bhb_loop+0x60/0xb0
[   93.277633][ T5845]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   93.277656][ T5845] RIP: 0033:0x7fac6efd2eda
[   93.277676][ T5845] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[   93.277695][ T5845] RSP: 002b:00007ffca723a7f8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
[   93.277726][ T5845] RAX: ffffffffffffffda RBX: 00007ffca723a810 RCX: 00007fac6efd2eda
[   93.277743][ T5845] RDX: 0000200000000180 RSI: 00002000000000c0 RDI: 00007ffca723a810
[   93.277759][ T5845] RBP: 00002000000000c0 R08: 00007ffca723a850 R09: 00000000000125aa
[   93.277774][ T5845] R10: 0000000000000000 R11: 0000000000000282 R12: 0000200000000180
[   93.277789][ T5845] R13: 00007ffca723a850 R14: 0000000000000003 R15: 0000000000000000
[   93.277812][ T5845]  </TASK>
[   93.277820][ T5845] ==================================================================
[   93.283056][ T5847] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000015: 0000 [#1] SMP KASAN PTI
[   93.287849][ T5845] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[   94.798277][ T5845] Kernel Offset: disabled
[   94.802656][ T5845] Rebooting in 86400 seconds..