./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor218259885 <...> Warning: Permanently added '10.128.1.157' (ED25519) to the list of known hosts. execve("./syz-executor218259885", ["./syz-executor218259885"], 0x7ffc244512c0 /* 10 vars */) = 0 brk(NULL) = 0x55555764a000 brk(0x55555764ad00) = 0x55555764ad00 arch_prctl(ARCH_SET_FS, 0x55555764a380) = 0 set_tid_address(0x55555764a650) = 5827 set_robust_list(0x55555764a660, 24) = 0 rseq(0x55555764aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor218259885", 4096) = 27 getrandom("\x23\xe6\x8f\xc7\x15\xaf\x3b\xfd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555764ad00 brk(0x55555766bd00) = 0x55555766bd00 brk(0x55555766c000) = 0x55555766c000 mprotect(0x7f3cae1b6000, 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 5829 attached , child_tidptr=0x55555764a650) = 5829 [pid 5829] set_robust_list(0x55555764a660, 24) = 0 [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5829] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ./strace-static-x86_64: Process 5830 attached [pid 5830] set_robust_list(0x55555764a660, 24 [pid 5829] ioctl(3, LOOP_CLR_FD [pid 5827] <... clone resumed>, child_tidptr=0x55555764a650) = 5830 [pid 5830] <... set_robust_list resumed>) = 0 [pid 5829] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5829] close(3) = 0 ./strace-static-x86_64: Process 5831 attached [pid 5830] <... openat resumed>) = 3 [pid 5829] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] set_robust_list(0x55555764a660, 24 [pid 5827] <... clone resumed>, child_tidptr=0x55555764a650) = 5831 [pid 5831] <... set_robust_list resumed>) = 0 [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5831] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5832 attached ) = 3 [pid 5832] set_robust_list(0x55555764a660, 24./strace-static-x86_64: Process 5834 attached [pid 5831] ioctl(3, LOOP_CLR_FD [pid 5830] ioctl(3, LOOP_CLR_FD [pid 5827] <... clone resumed>, child_tidptr=0x55555764a650) = 5832 [pid 5834] set_robust_list(0x55555764a660, 24 [pid 5832] <... set_robust_list resumed>) = 0 [pid 5831] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5830] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5829] <... clone resumed>, child_tidptr=0x55555764a650) = 5834 [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5834] <... set_robust_list resumed>) = 0 [pid 5831] close(3 [pid 5830] close(3 [pid 5834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5834] setpgid(0, 0) = 0 [pid 5834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5834] write(3, "1000", 4) = 4 [pid 5834] close(3 [pid 5831] <... close resumed>) = 0 ./strace-static-x86_64: Process 5836 attached [pid 5834] <... close resumed>) = 0 executing program [pid 5830] <... close resumed>) = 0 [pid 5836] set_robust_list(0x55555764a660, 24 [pid 5834] write(1, "executing program\n", 18) = 18 [pid 5836] <... set_robust_list resumed>) = 0 [pid 5834] memfd_create("syzkaller", 0 [pid 5836] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 5827] <... clone resumed>, child_tidptr=0x55555764a650) = 5836 [pid 5834] <... memfd_create resumed>) = 3 [pid 5832] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 5831] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5830] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5838 attached ./strace-static-x86_64: Process 5837 attached [pid 5827] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5836] ioctl(3, LOOP_CLR_FD [pid 5834] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 5839 attached [pid 5837] set_robust_list(0x55555764a660, 24 [pid 5836] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5832] <... openat resumed>) = 3 [pid 5831] <... clone resumed>, child_tidptr=0x55555764a650) = 5837 [pid 5830] <... clone resumed>, child_tidptr=0x55555764a650) = 5838 [pid 5827] <... clone resumed>, child_tidptr=0x55555764a650) = 5839 [pid 5837] <... set_robust_list resumed>) = 0 [pid 5834] <... mmap resumed>) = 0x7f3ca5c00000 [pid 5837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5839] set_robust_list(0x55555764a660, 24 [pid 5838] set_robust_list(0x55555764a660, 24 [pid 5836] close(3 [pid 5832] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 5839] <... set_robust_list resumed>) = 0 [pid 5837] setpgid(0, 0 [pid 5836] <... close resumed>) = 0 [pid 5832] close(3 [pid 5839] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 5838] <... set_robust_list resumed>) = 0 [pid 5837] <... setpgid resumed>) = 0 [pid 5836] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5832] <... close resumed>) = 0 [pid 5837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5832] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5839] <... openat resumed>) = 3 [pid 5838] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5837] <... openat resumed>) = 3 [pid 5838] <... prctl resumed>) = 0 [pid 5838] setpgid(0, 0./strace-static-x86_64: Process 5841 attached [pid 5839] ioctl(3, LOOP_CLR_FD [pid 5838] <... setpgid resumed>) = 0 [pid 5837] write(3, "1000", 4 [pid 5832] <... clone resumed>, child_tidptr=0x55555764a650) = 5841 [pid 5839] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 5838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5837] <... write resumed>) = 4 [pid 5836] <... clone resumed>, child_tidptr=0x55555764a650) = 5842 [pid 5837] close(3./strace-static-x86_64: Process 5842 attached ) = 0 [pid 5841] set_robust_list(0x55555764a660, 24 [pid 5839] close(3 [pid 5838] <... openat resumed>) = 3 [pid 5837] write(1, "executing program\n", 18 [pid 5839] <... close resumed>) = 0 executing program [pid 5841] <... set_robust_list resumed>) = 0 [pid 5837] <... write resumed>) = 18 executing program [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5839] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5838] write(3, "1000", 4 [pid 5841] <... prctl resumed>) = 0 [pid 5842] set_robust_list(0x55555764a660, 24 [pid 5838] <... write resumed>) = 4 [pid 5842] <... set_robust_list resumed>) = 0 [pid 5838] close(3) = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5838] write(1, "executing program\n", 18 [pid 5837] memfd_create("syzkaller", 0 [pid 5841] setpgid(0, 0./strace-static-x86_64: Process 5843 attached ) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5843] set_robust_list(0x55555764a660, 24 [pid 5839] <... clone resumed>, child_tidptr=0x55555764a650) = 5843 [pid 5838] <... write resumed>) = 18 [pid 5843] <... set_robust_list resumed>) = 0 [pid 5841] <... openat resumed>) = 3 [pid 5838] memfd_create("syzkaller", 0 [pid 5842] <... prctl resumed>) = 0 [pid 5837] <... memfd_create resumed>) = 3 [pid 5841] write(3, "1000", 4 [pid 5842] setpgid(0, 0 [pid 5837] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5842] <... setpgid resumed>) = 0 [pid 5841] <... write resumed>) = 4 [pid 5837] <... mmap resumed>) = 0x7f3ca5c00000 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5841] close(3 [pid 5842] <... openat resumed>) = 3 [pid 5838] <... memfd_create resumed>) = 3 [pid 5842] write(3, "1000", 4 [pid 5838] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5842] <... write resumed>) = 4 [pid 5838] <... mmap resumed>) = 0x7f3ca5c00000 [pid 5842] close(3) = 0 [pid 5842] write(1, "executing program\n", 18executing program [pid 5841] <... close resumed>) = 0 executing program [pid 5843] <... prctl resumed>) = 0 [pid 5842] <... write resumed>) = 18 [pid 5841] write(1, "executing program\n", 18) = 18 [pid 5843] setpgid(0, 0 [pid 5842] memfd_create("syzkaller", 0 [pid 5841] memfd_create("syzkaller", 0 [pid 5843] <... setpgid resumed>) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4 [pid 5842] <... memfd_create resumed>) = 3 [pid 5842] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5843] <... write resumed>) = 4 [pid 5841] <... memfd_create resumed>) = 3 executing program [pid 5843] close(3) = 0 [pid 5842] <... mmap resumed>) = 0x7f3ca5c00000 [pid 5843] write(1, "executing program\n", 18) = 18 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 5843] memfd_create("syzkaller", 0 [pid 5841] <... mmap resumed>) = 0x7f3ca5c00000 [pid 5843] <... memfd_create resumed>) = 3 [pid 5843] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3ca5c00000 [pid 5834] 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 [pid 5838] 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 [pid 5842] 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 [pid 5837] 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 [pid 5841] 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 [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 [pid 5834] <... write resumed>) = 16777216 [pid 5834] munmap(0x7f3ca5c00000, 138412032 [pid 5838] <... write resumed>) = 16777216 [pid 5838] munmap(0x7f3ca5c00000, 138412032 [pid 5842] <... write resumed>) = 16777216 [pid 5842] munmap(0x7f3ca5c00000, 138412032 [pid 5841] <... write resumed>) = 16777216 [pid 5834] <... munmap resumed>) = 0 [pid 5841] munmap(0x7f3ca5c00000, 138412032 [pid 5834] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 5843] <... write resumed>) = 16777216 [pid 5834] <... openat resumed>) = 4 [pid 5834] ioctl(4, LOOP_SET_FD, 3 [pid 5837] <... write resumed>) = 16777216 [pid 5837] munmap(0x7f3ca5c00000, 138412032 [pid 5843] munmap(0x7f3ca5c00000, 138412032 [pid 5834] <... ioctl resumed>) = 0 [pid 5834] close(3) = 0 [pid 5834] close(4) = 0 [ 89.808836][ T5834] loop0: detected capacity change from 0 to 32768 [pid 5834] mkdir("./file0", 0777) = 0 [pid 5834] mount("/dev/loop0", "./file0", "gfs2", 0, "" [pid 5842] <... munmap resumed>) = 0 [ 89.920726][ T5834] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [pid 5838] <... munmap resumed>) = 0 [pid 5842] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 5841] <... munmap resumed>) = 0 [pid 5842] <... openat resumed>) = 4 [pid 5842] ioctl(4, LOOP_SET_FD, 3 [pid 5841] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 5838] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 5841] ioctl(4, LOOP_SET_FD, 3 [pid 5838] <... openat resumed>) = 4 [pid 5838] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5843] <... munmap resumed>) = 0 [pid 5842] <... ioctl resumed>) = 0 [pid 5837] <... munmap resumed>) = 0 [pid 5842] close(3) = 0 [pid 5842] close(4) = 0 [pid 5842] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5842] mount("/dev/loop4", "./file0", "gfs2", 0, "" [pid 5838] close(3) = 0 [pid 5838] close(4) = 0 [pid 5838] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 5838] mount("/dev/loop1", "./file0", "gfs2", 0, "" [pid 5837] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 5843] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 5843] ioctl(4, LOOP_SET_FD, 3 [ 89.969232][ T5834] gfs2: fsid=syz:syz: Now mounting FS (format 1801)... [ 89.979238][ T5842] loop4: detected capacity change from 0 to 32768 [ 89.988548][ T5838] loop1: detected capacity change from 0 to 32768 [ 89.989602][ T5841] loop3: detected capacity change from 0 to 32768 [pid 5837] ioctl(4, LOOP_SET_FD, 3 [pid 5841] <... ioctl resumed>) = 0 [pid 5841] close(3) = 0 [pid 5841] close(4) = 0 [ 90.028878][ T5838] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 90.036957][ T5843] loop5: detected capacity change from 0 to 32768 [ 90.045254][ T5837] loop2: detected capacity change from 0 to 32768 [ 90.056275][ T5842] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 90.063542][ T5834] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms [pid 5841] mkdir("./file0", 0777 [pid 5843] <... ioctl resumed>) = 0 [pid 5837] <... ioctl resumed>) = 0 [pid 5837] close(3) = 0 [pid 5843] close(3 [pid 5837] close(4 [pid 5843] <... close resumed>) = 0 [pid 5837] <... close resumed>) = 0 [ 90.073632][ T5842] CPU: 1 UID: 0 PID: 5842 Comm: syz-executor218 Not tainted 6.15.0-syzkaller-08297-ge0797d3b91de #0 PREEMPT(full) [ 90.073663][ T5842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.073678][ T5842] Call Trace: [ 90.073687][ T5842] [ 90.073698][ T5842] dump_stack_lvl+0x189/0x250 [ 90.073759][ T5842] ? kernfs_path_from_node+0x2c/0x260 [ 90.073809][ T5842] ? __pfx_dump_stack_lvl+0x10/0x10 [ 90.073848][ T5842] ? __pfx__printk+0x10/0x10 [ 90.073878][ T5842] ? kernfs_path_from_node+0x2c/0x260 [ 90.073913][ T5842] ? kernfs_path_from_node+0x2c/0x260 [ 90.073950][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.073979][ T5842] ? kernfs_path_from_node+0x22c/0x260 [ 90.074011][ T5842] ? kernfs_path_from_node+0x2c/0x260 [ 90.074046][ T5842] sysfs_create_dir_ns+0x259/0x280 [ 90.074081][ T5842] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 90.074114][ T5842] ? do_raw_spin_unlock+0x122/0x240 [ 90.074154][ T5842] kobject_add_internal+0x59f/0xb40 [ 90.074195][ T5842] kobject_init_and_add+0x125/0x190 [ 90.074228][ T5842] ? __pfx_kobject_init_and_add+0x10/0x10 [ 90.074256][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.074280][ T5842] ? __raw_spin_lock_init+0x45/0x100 [ 90.074315][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.074339][ T5842] ? __init_swait_queue_head+0xa9/0x150 [ 90.074377][ T5842] gfs2_sys_fs_add+0x237/0x470 [ 90.074402][ T5842] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 90.074431][ T5842] ? is_dynamic_key+0xd6/0x1c0 [ 90.074453][ T5842] ? __pfx_alloc_workqueue+0x10/0x10 [ 90.074503][ T5842] gfs2_fill_super+0x1348/0x2010 [ 90.074550][ T5842] ? __pfx_gfs2_fill_super+0x10/0x10 [ 90.074577][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.074608][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.074635][ T5842] ? sb_set_blocksize+0x104/0x180 [ 90.074666][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.074690][ T5842] ? setup_bdev_super+0x4c1/0x5b0 [ 90.074720][ T5842] get_tree_bdev_flags+0x40e/0x4d0 [ 90.074746][ T5842] ? __pfx_gfs2_fill_super+0x10/0x10 [pid 5843] close(4 [pid 5841] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5837] mkdir("./file0", 0777 [pid 5843] <... close resumed>) = 0 [pid 5841] mount("/dev/loop3", "./file0", "gfs2", 0, "" [pid 5837] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 5843] mkdir("./file0", 0777 [pid 5837] mount("/dev/loop2", "./file0", "gfs2", 0, "" [pid 5843] <... mkdir resumed>) = -1 EEXIST (File exists) [ 90.074776][ T5842] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 90.074808][ T5842] ? rcu_is_watching+0x15/0xb0 [ 90.074842][ T5842] gfs2_get_tree+0x51/0x1e0 [ 90.074875][ T5842] vfs_get_tree+0x92/0x2b0 [ 90.074904][ T5842] do_new_mount+0x24a/0xa40 [ 90.074942][ T5842] __se_sys_mount+0x317/0x410 [ 90.074978][ T5842] ? __pfx___se_sys_mount+0x10/0x10 [ 90.075006][ T5842] ? rcu_is_watching+0x15/0xb0 [ 90.075039][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.075064][ T5842] ? __x64_sys_mount+0x20/0xc0 [ 90.075096][ T5842] do_syscall_64+0xfa/0x3b0 [ 90.075120][ T5842] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.075143][ T5842] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.075163][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.075187][ T5842] ? exc_page_fault+0x9f/0xf0 [ 90.075212][ T5842] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.075233][ T5842] RIP: 0033:0x7f3cae124f1a [ 90.075251][ T5842] 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 [ 90.075268][ T5842] RSP: 002b:00007ffcedf8f748 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 90.075289][ T5842] RAX: ffffffffffffffda RBX: 00007ffcedf8f760 RCX: 00007f3cae124f1a [ 90.075305][ T5842] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcedf8f760 [ 90.075320][ T5842] RBP: 000020000001f6c0 R08: 00007ffcedf8f7a0 R09: 000000000001f673 [ 90.075335][ T5842] R10: 0000000000000000 R11: 0000000000000282 R12: 000020000001f680 [ 90.075348][ T5842] R13: 00007ffcedf8f7a0 R14: 0000000000000003 R15: 0000000000000000 [ 90.075379][ T5842] [ 90.075484][ T5842] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 90.087603][ T5838] CPU: 0 UID: 0 PID: 5838 Comm: syz-executor218 Not tainted 6.15.0-syzkaller-08297-ge0797d3b91de #0 PREEMPT(full) [ 90.087634][ T5838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.087648][ T5838] Call Trace: [ 90.087657][ T5838] [ 90.087666][ T5838] dump_stack_lvl+0x189/0x250 [ 90.087707][ T5838] ? kernfs_path_from_node+0x2c/0x260 [ 90.087746][ T5838] ? __pfx_dump_stack_lvl+0x10/0x10 [ 90.087785][ T5838] ? __pfx__printk+0x10/0x10 [ 90.087814][ T5838] ? kernfs_path_from_node+0x2c/0x260 [ 90.087848][ T5838] ? kernfs_path_from_node+0x2c/0x260 [ 90.087886][ T5838] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.087914][ T5838] ? kernfs_path_from_node+0x22c/0x260 [ 90.087949][ T5838] ? kernfs_path_from_node+0x2c/0x260 [ 90.087989][ T5838] sysfs_create_dir_ns+0x259/0x280 [ 90.088028][ T5838] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 90.088070][ T5838] ? do_raw_spin_unlock+0x122/0x240 [ 90.088113][ T5838] kobject_add_internal+0x59f/0xb40 [ 90.088153][ T5838] kobject_init_and_add+0x125/0x190 [ 90.088190][ T5838] ? __pfx_kobject_init_and_add+0x10/0x10 [ 90.088221][ T5838] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.088248][ T5838] ? __raw_spin_lock_init+0x45/0x100 [ 90.088286][ T5838] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.088313][ T5838] ? __init_swait_queue_head+0xa9/0x150 [ 90.088354][ T5838] gfs2_sys_fs_add+0x237/0x470 [ 90.088382][ T5838] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 90.088414][ T5838] ? is_dynamic_key+0xd6/0x1c0 [ 90.088439][ T5838] ? __pfx_alloc_workqueue+0x10/0x10 [ 90.088497][ T5838] gfs2_fill_super+0x1348/0x2010 [ 90.088549][ T5838] ? __pfx_gfs2_fill_super+0x10/0x10 [ 90.088579][ T5838] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.088613][ T5838] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.088641][ T5838] ? sb_set_blocksize+0x104/0x180 [ 90.088674][ T5838] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.088702][ T5838] ? setup_bdev_super+0x4c1/0x5b0 [ 90.088735][ T5838] get_tree_bdev_flags+0x40e/0x4d0 [ 90.088763][ T5838] ? __pfx_gfs2_fill_super+0x10/0x10 [ 90.088796][ T5838] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 90.088826][ T5838] ? rcu_is_watching+0x15/0xb0 [ 90.088864][ T5838] gfs2_get_tree+0x51/0x1e0 [ 90.088901][ T5838] vfs_get_tree+0x92/0x2b0 [ 90.088933][ T5838] do_new_mount+0x24a/0xa40 [ 90.088975][ T5838] __se_sys_mount+0x317/0x410 [ 90.089015][ T5838] ? __pfx___se_sys_mount+0x10/0x10 [ 90.089045][ T5838] ? rcu_is_watching+0x15/0xb0 [ 90.089086][ T5838] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.089113][ T5838] ? __x64_sys_mount+0x20/0xc0 [ 90.089149][ T5838] do_syscall_64+0xfa/0x3b0 [ 90.089175][ T5838] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.089200][ T5838] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.089222][ T5838] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.089250][ T5838] ? exc_page_fault+0x9f/0xf0 [ 90.089277][ T5838] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.089300][ T5838] RIP: 0033:0x7f3cae124f1a [ 90.089319][ T5838] 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 [ 90.089338][ T5838] RSP: 002b:00007ffcedf8f748 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 90.089362][ T5838] RAX: ffffffffffffffda RBX: 00007ffcedf8f760 RCX: 00007f3cae124f1a [ 90.089380][ T5838] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcedf8f760 [ 90.089397][ T5838] RBP: 000020000001f6c0 R08: 00007ffcedf8f7a0 R09: 000000000001f673 [ 90.089413][ T5838] R10: 0000000000000000 R11: 0000000000000282 R12: 000020000001f680 [ 90.089429][ T5838] R13: 00007ffcedf8f7a0 R14: 0000000000000003 R15: 0000000000000000 [ 90.089464][ T5838] [ 90.093062][ T5838] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 90.145091][ T43] gfs2: fsid=syz:syz.0: jid=0, already locked for use [ 90.182056][ T5842] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 90.186490][ T43] gfs2: fsid=syz:syz.0: jid=0: Looking at journal... [ 90.348578][ T5838] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 90.556628][ T5837] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 90.879787][ T5841] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 90.887174][ T5841] CPU: 0 UID: 0 PID: 5841 Comm: syz-executor218 Not tainted 6.15.0-syzkaller-08297-ge0797d3b91de #0 PREEMPT(full) [ 90.887203][ T5841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.887218][ T5841] Call Trace: [ 90.887227][ T5841] [ 90.887237][ T5841] dump_stack_lvl+0x189/0x250 [ 90.887280][ T5841] ? kernfs_path_from_node+0x2c/0x260 [ 90.887319][ T5841] ? __pfx_dump_stack_lvl+0x10/0x10 [ 90.887358][ T5841] ? __pfx__printk+0x10/0x10 [ 90.887387][ T5841] ? kernfs_path_from_node+0x2c/0x260 [ 90.887422][ T5841] ? kernfs_path_from_node+0x2c/0x260 [ 90.887459][ T5841] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.887488][ T5841] ? kernfs_path_from_node+0x22c/0x260 [ 90.887522][ T5841] ? kernfs_path_from_node+0x2c/0x260 [ 90.887562][ T5841] sysfs_create_dir_ns+0x259/0x280 [ 90.887600][ T5841] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 90.887638][ T5841] ? do_raw_spin_unlock+0x122/0x240 [ 90.887682][ T5841] kobject_add_internal+0x59f/0xb40 [ 90.887729][ T5841] kobject_init_and_add+0x125/0x190 [ 90.887770][ T5841] ? __pfx_kobject_init_and_add+0x10/0x10 [ 90.887804][ T5841] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.887832][ T5841] ? __raw_spin_lock_init+0x45/0x100 [ 90.887874][ T5841] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.887902][ T5841] ? __init_swait_queue_head+0xa9/0x150 [ 90.887944][ T5841] gfs2_sys_fs_add+0x237/0x470 [ 90.887973][ T5841] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 90.888005][ T5841] ? is_dynamic_key+0xd6/0x1c0 [ 90.888030][ T5841] ? __pfx_alloc_workqueue+0x10/0x10 [ 90.888086][ T5841] gfs2_fill_super+0x1348/0x2010 [ 90.888138][ T5841] ? __pfx_gfs2_fill_super+0x10/0x10 [ 90.888169][ T5841] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.888203][ T5841] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.888231][ T5841] ? sb_set_blocksize+0x104/0x180 [ 90.888265][ T5841] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.888292][ T5841] ? setup_bdev_super+0x4c1/0x5b0 [ 90.888326][ T5841] get_tree_bdev_flags+0x40e/0x4d0 [ 90.888355][ T5841] ? __pfx_gfs2_fill_super+0x10/0x10 [ 90.888388][ T5841] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 90.888419][ T5841] ? rcu_is_watching+0x15/0xb0 [ 90.888461][ T5841] gfs2_get_tree+0x51/0x1e0 [ 90.888498][ T5841] vfs_get_tree+0x92/0x2b0 [ 90.888531][ T5841] do_new_mount+0x24a/0xa40 [ 90.888575][ T5841] __se_sys_mount+0x317/0x410 [ 90.888616][ T5841] ? __pfx___se_sys_mount+0x10/0x10 [ 90.888645][ T5841] ? rcu_is_watching+0x15/0xb0 [ 90.888681][ T5841] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.888709][ T5841] ? __x64_sys_mount+0x20/0xc0 [ 90.888753][ T5841] do_syscall_64+0xfa/0x3b0 [ 90.888779][ T5841] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.888805][ T5841] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.888827][ T5841] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.888855][ T5841] ? exc_page_fault+0x9f/0xf0 [ 90.888882][ T5841] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.888909][ T5842] ================================================================== [ 90.888906][ T5841] RIP: 0033:0x7f3cae124f1a [ 90.888926][ T5841] 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 [ 90.888946][ T5841] RSP: 002b:00007ffcedf8f748 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 90.888970][ T5841] RAX: ffffffffffffffda RBX: 00007ffcedf8f760 RCX: 00007f3cae124f1a [ 90.888988][ T5841] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcedf8f760 [ 90.889005][ T5841] RBP: 000020000001f6c0 R08: 00007ffcedf8f7a0 R09: 000000000001f673 [ 90.889022][ T5841] R10: 0000000000000000 R11: 0000000000000282 R12: 000020000001f680 [ 90.889037][ T5841] R13: 00007ffcedf8f7a0 R14: 0000000000000003 R15: 0000000000000000 [ 90.889071][ T5841] [ 90.919633][ T5841] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 90.921822][ T5842] BUG: KASAN: null-ptr-deref in gfs2_drop_inode+0x20c/0x3a0 [ 90.927161][ T5841] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 90.932318][ T5842] Read of size 8 at addr 00000000000000a8 by task syz-executor218/5842 [ 90.932339][ T5842] [ 90.932351][ T5842] CPU: 1 UID: 0 PID: 5842 Comm: syz-executor218 Not tainted 6.15.0-syzkaller-08297-ge0797d3b91de #0 PREEMPT(full) [ 90.932381][ T5842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 90.932396][ T5842] Call Trace: [ 90.932405][ T5842] [ 90.932414][ T5842] dump_stack_lvl+0x189/0x250 [ 90.932455][ T5842] ? __pfx_dump_stack_lvl+0x10/0x10 [ 90.932494][ T5842] ? _raw_spin_lock_irqsave+0xb3/0xf0 [ 90.932533][ T5842] ? do_raw_spin_lock+0x121/0x290 [ 90.932572][ T5842] ? gfs2_drop_inode+0x20c/0x3a0 [ 90.932608][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.932638][ T5842] ? gfs2_drop_inode+0x20c/0x3a0 [ 90.932675][ T5842] kasan_report+0x118/0x150 [ 90.932707][ T5842] ? gfs2_drop_inode+0x20c/0x3a0 [ 90.932750][ T5842] kasan_check_range+0x2b0/0x2c0 [ 90.932783][ T5842] gfs2_drop_inode+0x20c/0x3a0 [ 90.932823][ T5842] iput+0x45d/0x9d0 [ 90.932860][ T5842] gfs2_fill_super+0x1418/0x2010 [ 90.932902][ T5842] ? __pfx_gfs2_fill_super+0x10/0x10 [ 90.932933][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.932964][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.932991][ T5842] ? sb_set_blocksize+0x104/0x180 [ 90.933028][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.933055][ T5842] ? setup_bdev_super+0x4c1/0x5b0 [ 90.933085][ T5842] get_tree_bdev_flags+0x40e/0x4d0 [ 90.933112][ T5842] ? __pfx_gfs2_fill_super+0x10/0x10 [ 90.933145][ T5842] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 90.933173][ T5842] ? rcu_is_watching+0x15/0xb0 [ 90.933206][ T5842] gfs2_get_tree+0x51/0x1e0 [ 90.933240][ T5842] vfs_get_tree+0x92/0x2b0 [ 90.933269][ T5842] do_new_mount+0x24a/0xa40 [ 90.933305][ T5842] __se_sys_mount+0x317/0x410 [ 90.933340][ T5842] ? __pfx___se_sys_mount+0x10/0x10 [ 90.933371][ T5842] ? rcu_is_watching+0x15/0xb0 [ 90.933403][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.933431][ T5842] ? __x64_sys_mount+0x20/0xc0 [ 90.933464][ T5842] do_syscall_64+0xfa/0x3b0 [ 90.933491][ T5842] ? lockdep_hardirqs_on+0x9c/0x150 [ 90.933515][ T5842] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.933538][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 90.933566][ T5842] ? exc_page_fault+0x9f/0xf0 [ 90.933591][ T5842] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 90.933614][ T5842] RIP: 0033:0x7f3cae124f1a [ 90.933633][ T5842] 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 [ 90.933652][ T5842] RSP: 002b:00007ffcedf8f748 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 90.933676][ T5842] RAX: ffffffffffffffda RBX: 00007ffcedf8f760 RCX: 00007f3cae124f1a [ 90.933694][ T5842] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcedf8f760 [ 90.933712][ T5842] RBP: 000020000001f6c0 R08: 00007ffcedf8f7a0 R09: 000000000001f673 [ 90.933729][ T5842] R10: 0000000000000000 R11: 0000000000000282 R12: 000020000001f680 [ 90.933744][ T5842] R13: 00007ffcedf8f7a0 R14: 0000000000000003 R15: 0000000000000000 [ 90.933769][ T5842] [ 90.933778][ T5842] ================================================================== [ 91.022288][ T5837] CPU: 0 UID: 0 PID: 5837 Comm: syz-executor218 Not tainted 6.15.0-syzkaller-08297-ge0797d3b91de #0 PREEMPT(full) [ 91.022319][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 91.022332][ T5837] Call Trace: [ 91.022341][ T5837] [ 91.022350][ T5837] dump_stack_lvl+0x189/0x250 [ 91.022391][ T5837] ? kernfs_path_from_node+0x2c/0x260 [ 91.022429][ T5837] ? __pfx_dump_stack_lvl+0x10/0x10 [ 91.022467][ T5837] ? __pfx__printk+0x10/0x10 [ 91.022496][ T5837] ? kernfs_path_from_node+0x2c/0x260 [ 91.022529][ T5837] ? kernfs_path_from_node+0x2c/0x260 [ 91.022566][ T5837] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.022593][ T5837] ? kernfs_path_from_node+0x22c/0x260 [ 91.022626][ T5837] ? kernfs_path_from_node+0x2c/0x260 [ 91.022666][ T5837] sysfs_create_dir_ns+0x259/0x280 [ 91.022704][ T5837] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 91.022742][ T5837] ? do_raw_spin_unlock+0x122/0x240 [ 91.022790][ T5837] kobject_add_internal+0x59f/0xb40 [ 91.022832][ T5837] kobject_init_and_add+0x125/0x190 [ 91.022869][ T5837] ? __pfx_kobject_init_and_add+0x10/0x10 [ 91.022899][ T5837] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.022927][ T5837] ? __raw_spin_lock_init+0x45/0x100 [ 91.022964][ T5837] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.022991][ T5837] ? __init_swait_queue_head+0xa9/0x150 [ 91.023033][ T5837] gfs2_sys_fs_add+0x237/0x470 [ 91.023060][ T5837] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 91.023093][ T5837] ? is_dynamic_key+0xd6/0x1c0 [ 91.023118][ T5837] ? __pfx_alloc_workqueue+0x10/0x10 [ 91.023173][ T5837] gfs2_fill_super+0x1348/0x2010 [ 91.023225][ T5837] ? __pfx_gfs2_fill_super+0x10/0x10 [ 91.023254][ T5837] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.023288][ T5837] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.023315][ T5837] ? sb_set_blocksize+0x104/0x180 [ 91.023349][ T5837] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.023376][ T5837] ? setup_bdev_super+0x4c1/0x5b0 [ 91.023409][ T5837] get_tree_bdev_flags+0x40e/0x4d0 [ 91.023437][ T5837] ? __pfx_gfs2_fill_super+0x10/0x10 [ 91.023474][ T5837] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 91.023504][ T5837] ? rcu_is_watching+0x15/0xb0 [ 91.023541][ T5837] gfs2_get_tree+0x51/0x1e0 [ 91.023577][ T5837] vfs_get_tree+0x92/0x2b0 [ 91.023609][ T5837] do_new_mount+0x24a/0xa40 [ 91.023651][ T5837] __se_sys_mount+0x317/0x410 [ 91.023690][ T5837] ? __pfx___se_sys_mount+0x10/0x10 [ 91.023721][ T5837] ? rcu_is_watching+0x15/0xb0 [ 91.023765][ T5837] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.023792][ T5837] ? __x64_sys_mount+0x20/0xc0 [ 91.023828][ T5837] do_syscall_64+0xfa/0x3b0 [ 91.023854][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.023879][ T5837] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.023902][ T5837] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.023929][ T5837] ? exc_page_fault+0x9f/0xf0 [ 91.023956][ T5837] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.023979][ T5837] RIP: 0033:0x7f3cae124f1a [ 91.023998][ T5837] 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 [ 91.024017][ T5837] RSP: 002b:00007ffcedf8f748 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 91.024041][ T5837] RAX: ffffffffffffffda RBX: 00007ffcedf8f760 RCX: 00007f3cae124f1a [ 91.024059][ T5837] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcedf8f760 [ 91.024076][ T5837] RBP: 000020000001f6c0 R08: 00007ffcedf8f7a0 R09: 000000000001f673 [ 91.024092][ T5837] R10: 0000000000000000 R11: 0000000000000282 R12: 000020000001f680 [ 91.024108][ T5837] R13: 00007ffcedf8f7a0 R14: 0000000000000003 R15: 0000000000000000 [ 91.024143][ T5837] [ 91.024169][ T5837] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 91.028259][ T5842] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 91.028275][ T5842] CPU: 1 UID: 0 PID: 5842 Comm: syz-executor218 Not tainted 6.15.0-syzkaller-08297-ge0797d3b91de #0 PREEMPT(full) [ 91.028304][ T5842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 91.028319][ T5842] Call Trace: [ 91.028328][ T5842] [ 91.028337][ T5842] dump_stack_lvl+0x99/0x250 [ 91.028376][ T5842] ? __asan_memcpy+0x40/0x70 [ 91.028400][ T5842] ? __pfx_dump_stack_lvl+0x10/0x10 [ 91.028438][ T5842] ? __pfx__printk+0x10/0x10 [ 91.028470][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.028502][ T5842] panic+0x2db/0x790 [ 91.028539][ T5842] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.028567][ T5842] ? __pfx_panic+0x10/0x10 [ 91.028607][ T5842] ? _raw_spin_unlock_irqrestore+0xa8/0x110 [ 91.028646][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.028675][ T5842] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 91.028715][ T5842] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 91.028753][ T5842] ? do_raw_spin_lock+0x121/0x290 [ 91.028792][ T5842] ? gfs2_drop_inode+0x20c/0x3a0 [ 91.028829][ T5842] check_panic_on_warn+0x89/0xb0 [ 91.028855][ T5842] ? gfs2_drop_inode+0x20c/0x3a0 [ 91.028892][ T5842] end_report+0x78/0x160 [ 91.028922][ T5842] kasan_report+0x129/0x150 [ 91.028954][ T5842] ? gfs2_drop_inode+0x20c/0x3a0 [ 91.029001][ T5842] kasan_check_range+0x2b0/0x2c0 [ 91.029035][ T5842] gfs2_drop_inode+0x20c/0x3a0 [ 91.029075][ T5842] iput+0x45d/0x9d0 [ 91.029112][ T5842] gfs2_fill_super+0x1418/0x2010 [ 91.029154][ T5842] ? __pfx_gfs2_fill_super+0x10/0x10 [ 91.029185][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.029217][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.029245][ T5842] ? sb_set_blocksize+0x104/0x180 [ 91.029277][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.029305][ T5842] ? setup_bdev_super+0x4c1/0x5b0 [ 91.029335][ T5842] get_tree_bdev_flags+0x40e/0x4d0 [ 91.029363][ T5842] ? __pfx_gfs2_fill_super+0x10/0x10 [ 91.029396][ T5842] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 91.029425][ T5842] ? rcu_is_watching+0x15/0xb0 [ 91.029459][ T5842] gfs2_get_tree+0x51/0x1e0 [ 91.029493][ T5842] vfs_get_tree+0x92/0x2b0 [ 91.029523][ T5842] do_new_mount+0x24a/0xa40 [ 91.029559][ T5842] __se_sys_mount+0x317/0x410 [ 91.029595][ T5842] ? __pfx___se_sys_mount+0x10/0x10 [ 91.029626][ T5842] ? rcu_is_watching+0x15/0xb0 [ 91.029659][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.029688][ T5842] ? __x64_sys_mount+0x20/0xc0 [ 91.029724][ T5842] do_syscall_64+0xfa/0x3b0 [ 91.029750][ T5842] ? lockdep_hardirqs_on+0x9c/0x150 [ 91.029776][ T5842] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.029800][ T5842] ? srso_alias_return_thunk+0x5/0xfbef5 [ 91.029828][ T5842] ? exc_page_fault+0x9f/0xf0 [ 91.029853][ T5842] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 91.029876][ T5842] RIP: 0033:0x7f3cae124f1a [ 91.029896][ T5842] 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 [ 91.029915][ T5842] RSP: 002b:00007ffcedf8f748 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 91.029940][ T5842] RAX: ffffffffffffffda RBX: 00007ffcedf8f760 RCX: 00007f3cae124f1a [ 91.029959][ T5842] RDX: 000020000001f680 RSI: 000020000001f6c0 RDI: 00007ffcedf8f760 [ 91.029977][ T5842] RBP: 000020000001f6c0 R08: 00007ffcedf8f7a0 R09: 000000000001f673 [ 91.029994][ T5842] R10: 0000000000000000 R11: 0000000000000282 R12: 000020000001f680 [ 91.030015][ T5842] R13: 00007ffcedf8f7a0 R14: 0000000000000003 R15: 0000000000000000 [ 91.030041][ T5842] [ 91.032927][ T5842] Kernel Offset: disabled