./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3804884164 <...> Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts. execve("./syz-executor3804884164", ["./syz-executor3804884164"], 0x7ffd765f6ca0 /* 10 vars */) = 0 brk(NULL) = 0x55557c54f000 brk(0x55557c54fe00) = 0x55557c54fe00 arch_prctl(ARCH_SET_FS, 0x55557c54f480) = 0 set_tid_address(0x55557c54f750) = 5828 set_robust_list(0x55557c54f760, 24) = 0 rseq(0x55557c54fda0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3804884164", 4096) = 28 getrandom("\x37\x1a\xf8\x00\xe2\xa9\xc0\x7d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557c54fe00 brk(0x55557c570e00) = 0x55557c570e00 brk(0x55557c571000) = 0x55557c571000 mprotect(0x7f6b2ef46000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f6b2ee9b240, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f6b2eea32b0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f6b2ee9b240, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f6b2eea32b0}, NULL, 8) = 0 write(1, "executing program\n", 18executing program ) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6b26a00000 write(3, "\x02\x02\x02\x02\x02\x02\x02\x02\x74\x68\x69\x73\x20\x69\x73\x20\x61\x6e\x20\x6f\x63\x66\x73\x32\x20\x76\x6f\x6c\x75\x6d\x65\x00\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02"..., 16777216) = 16777216 munmap(0x7f6b26a00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 [ 87.975261][ T5828] loop0: detected capacity change from 0 to 32768 [ 88.019769][ T5828] ======================================================= [ 88.019769][ T5828] WARNING: The mand mount option has been deprecated and [ 88.019769][ T5828] and is ignored by this kernel. Remove the mand [ 88.019769][ T5828] option from the mount to silence this warning. [ 88.019769][ T5828] ======================================================= mount("/dev/loop0", "./file1", "ocfs2", MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME, "acl,heartbeat=none,dir_resv_level=00000000000000000003,resv_level=00000000000000000006,coherency=ful"...) = 0 openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [ 88.070267][ T5828] JBD2: Ignoring recovery information on journal [ 88.101985][ T5828] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. mkdir("./file1", 000) = 0 mkdir("./bus", 000) = 0 mkdir("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 0777) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- rename("\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", "./file0") = 0 [ 88.226430][ T5828] overlayfs: upper fs does not support tmpfile. [ 88.235754][ T5828] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 88.243572][ T5828] [ 88.245914][ T5828] ====================================================== [ 88.253015][ T5828] WARNING: possible circular locking dependency detected [ 88.260227][ T5828] 6.15.0-rc1-syzkaller #0 Not tainted [ 88.265588][ T5828] ------------------------------------------------------ [ 88.272595][ T5828] syz-executor380/5828 is trying to acquire lock: [ 88.278997][ T5828] ffff8880764442c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 88.292508][ T5828] [ 88.292508][ T5828] but task is already holding lock: [ 88.299902][ T5828] ffff88807b7e6ab8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x635/0x1940 [ 88.309532][ T5828] [ 88.309532][ T5828] which lock already depends on the new lock. [ 88.309532][ T5828] [ 88.320106][ T5828] [ 88.320106][ T5828] the existing dependency chain (in reverse order) is: [ 88.329114][ T5828] [ 88.329114][ T5828] -> #4 (&oi->ip_xattr_sem){+.+.}-{4:4}: [ 88.336964][ T5828] lock_acquire+0x116/0x2f0 [ 88.341984][ T5828] down_write+0x9c/0x220 [ 88.346756][ T5828] ocfs2_xattr_set_handle+0x53b/0xa20 [ 88.352655][ T5828] ocfs2_init_security_set+0xbd/0xd0 [ 88.358636][ T5828] ocfs2_mknod+0x1cd3/0x2b30 [ 88.363757][ T5828] ocfs2_mkdir+0x19c/0x470 [ 88.368716][ T5828] vfs_mkdir+0x2f9/0x500 [ 88.373558][ T5828] do_mkdirat+0x273/0x3f0 [ 88.378493][ T5828] __x64_sys_mkdir+0x6c/0x80 [ 88.383680][ T5828] do_syscall_64+0xf3/0x230 [ 88.388810][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.395236][ T5828] [ 88.395236][ T5828] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 88.402859][ T5828] lock_acquire+0x116/0x2f0 [ 88.407921][ T5828] start_this_handle+0x1ee4/0x21a0 [ 88.413595][ T5828] jbd2__journal_start+0x2da/0x5d0 [ 88.419244][ T5828] jbd2_journal_start+0x29/0x40 [ 88.424627][ T5828] ocfs2_start_trans+0x3cd/0x710 [ 88.430086][ T5828] ocfs2_reserve_suballoc_bits+0xa54/0x4f30 [ 88.436495][ T5828] ocfs2_reserve_new_metadata_blocks+0x41c/0x9b0 [ 88.443339][ T5828] ocfs2_mknod+0x143e/0x2b30 [ 88.448442][ T5828] ocfs2_mkdir+0x19c/0x470 [ 88.453371][ T5828] vfs_mkdir+0x2f9/0x500 [ 88.458148][ T5828] do_mkdirat+0x273/0x3f0 [ 88.463009][ T5828] __x64_sys_mkdir+0x6c/0x80 [ 88.468117][ T5828] do_syscall_64+0xf3/0x230 [ 88.473139][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.479547][ T5828] [ 88.479547][ T5828] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 88.488070][ T5828] lock_acquire+0x116/0x2f0 [ 88.493109][ T5828] down_read+0xb3/0xa50 [ 88.497794][ T5828] ocfs2_start_trans+0x3c2/0x710 [ 88.503271][ T5828] ocfs2_reserve_suballoc_bits+0xa54/0x4f30 [ 88.509693][ T5828] ocfs2_reserve_new_metadata_blocks+0x41c/0x9b0 [ 88.516547][ T5828] ocfs2_mknod+0x143e/0x2b30 [ 88.521681][ T5828] ocfs2_mkdir+0x19c/0x470 [ 88.526625][ T5828] vfs_mkdir+0x2f9/0x500 [ 88.531398][ T5828] do_mkdirat+0x273/0x3f0 [ 88.536253][ T5828] __x64_sys_mkdir+0x6c/0x80 [ 88.541386][ T5828] do_syscall_64+0xf3/0x230 [ 88.546408][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.552816][ T5828] [ 88.552816][ T5828] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 88.560320][ T5828] lock_acquire+0x116/0x2f0 [ 88.565336][ T5828] ocfs2_start_trans+0x2bd/0x710 [ 88.570792][ T5828] ocfs2_mknod+0x1510/0x2b30 [ 88.575925][ T5828] ocfs2_mkdir+0x19c/0x470 [ 88.580894][ T5828] vfs_mkdir+0x2f9/0x500 [ 88.585668][ T5828] do_mkdirat+0x273/0x3f0 [ 88.590541][ T5828] __x64_sys_mkdir+0x6c/0x80 [ 88.595754][ T5828] do_syscall_64+0xf3/0x230 [ 88.600777][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.607187][ T5828] [ 88.607187][ T5828] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 88.617814][ T5828] validate_chain+0xa69/0x24e0 [ 88.623102][ T5828] __lock_acquire+0xad5/0xd80 [ 88.628294][ T5828] lock_acquire+0x116/0x2f0 [ 88.633310][ T5828] down_write+0x9c/0x220 [ 88.638073][ T5828] ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 88.644743][ T5828] ocfs2_reserve_clusters_with_limit+0x1ba/0xb60 [ 88.651589][ T5828] ocfs2_init_xattr_set_ctxt+0x435/0x900 [ 88.657745][ T5828] ocfs2_xattr_set+0xf52/0x1940 [ 88.663313][ T5828] __vfs_setxattr+0x468/0x4a0 [ 88.668505][ T5828] __vfs_setxattr_noperm+0x12e/0x660 [ 88.674309][ T5828] vfs_setxattr+0x223/0x430 [ 88.679325][ T5828] ovl_get_workdir+0xea3/0x19e0 [ 88.684690][ T5828] ovl_fill_super+0x1386/0x3720 [ 88.690054][ T5828] get_tree_nodev+0xb7/0x140 [ 88.695180][ T5828] vfs_get_tree+0x90/0x2b0 [ 88.700133][ T5828] do_new_mount+0x2cf/0xb70 [ 88.705166][ T5828] __se_sys_mount+0x38c/0x400 [ 88.710369][ T5828] do_syscall_64+0xf3/0x230 [ 88.715409][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.721844][ T5828] [ 88.721844][ T5828] other info that might help us debug this: [ 88.721844][ T5828] [ 88.732066][ T5828] Chain exists of: [ 88.732066][ T5828] &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5 --> jbd2_handle --> &oi->ip_xattr_sem [ 88.732066][ T5828] [ 88.747817][ T5828] Possible unsafe locking scenario: [ 88.747817][ T5828] [ 88.755278][ T5828] CPU0 CPU1 [ 88.760784][ T5828] ---- ---- [ 88.766175][ T5828] lock(&oi->ip_xattr_sem); [ 88.770786][ T5828] lock(jbd2_handle); [ 88.777381][ T5828] lock(&oi->ip_xattr_sem); [ 88.784516][ T5828] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 88.791839][ T5828] [ 88.791839][ T5828] *** DEADLOCK *** [ 88.791839][ T5828] [ 88.799974][ T5828] 4 locks held by syz-executor380/5828: [ 88.805538][ T5828] #0: ffff88807e5c60e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 [ 88.815653][ T5828] #1: ffff88803607c420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 88.824802][ T5828] #2: ffff88807b7e6d80 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x1e3/0x430 [ 88.835251][ T5828] #3: ffff88807b7e6ab8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x635/0x1940 [ 88.845180][ T5828] [ 88.845180][ T5828] stack backtrace: [ 88.851133][ T5828] CPU: 0 UID: 0 PID: 5828 Comm: syz-executor380 Not tainted 6.15.0-rc1-syzkaller #0 PREEMPT(full) [ 88.851157][ T5828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 88.851171][ T5828] Call Trace: [ 88.851179][ T5828] [ 88.851186][ T5828] dump_stack_lvl+0x241/0x360 [ 88.851212][ T5828] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.851231][ T5828] ? __pfx__printk+0x10/0x10 [ 88.851249][ T5828] ? print_lock+0x171/0x1a0 [ 88.851267][ T5828] print_circular_bug+0x2e1/0x300 [ 88.851286][ T5828] check_noncircular+0x142/0x160 [ 88.851306][ T5828] validate_chain+0xa69/0x24e0 [ 88.851326][ T5828] ? do_raw_spin_lock+0x151/0x370 [ 88.851350][ T5828] __lock_acquire+0xad5/0xd80 [ 88.851367][ T5828] lock_acquire+0x116/0x2f0 [ 88.851379][ T5828] ? ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 88.851396][ T5828] ? unwind_get_return_address+0x4d/0x90 [ 88.851416][ T5828] down_write+0x9c/0x220 [ 88.851435][ T5828] ? ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 88.851450][ T5828] ? __pfx_down_write+0x10/0x10 [ 88.851470][ T5828] ? stack_trace_save+0x11a/0x1d0 [ 88.851490][ T5828] ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 88.851508][ T5828] ? check_noncircular+0xee/0x160 [ 88.851527][ T5828] ? lockdep_unlock+0x8d/0x120 [ 88.851550][ T5828] ? __pfx_ocfs2_reserve_local_alloc_bits+0x10/0x10 [ 88.851565][ T5828] ? vfs_get_tree+0x90/0x2b0 [ 88.851585][ T5828] ? do_new_mount+0x2cf/0xb70 [ 88.851606][ T5828] ? __lock_acquire+0xad5/0xd80 [ 88.851621][ T5828] ? do_raw_spin_lock+0x151/0x370 [ 88.851642][ T5828] ? do_raw_spin_unlock+0x13c/0x8b0 [ 88.851664][ T5828] ? _raw_spin_unlock+0x28/0x50 [ 88.851677][ T5828] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 88.851701][ T5828] ocfs2_reserve_clusters_with_limit+0x1ba/0xb60 [ 88.851722][ T5828] ? __pfx_ocfs2_reserve_clusters_with_limit+0x10/0x10 [ 88.851744][ T5828] ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10 [ 88.851761][ T5828] ? __lock_acquire+0xad5/0xd80 [ 88.851775][ T5828] ocfs2_init_xattr_set_ctxt+0x435/0x900 [ 88.851799][ T5828] ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10 [ 88.851820][ T5828] ? up_write+0x1ab/0x590 [ 88.851837][ T5828] ? __pfx_ocfs2_truncate_log_needs_flush+0x10/0x10 [ 88.851857][ T5828] ? __pfx_up_write+0x10/0x10 [ 88.851875][ T5828] ? __kmalloc_cache_noprof+0x236/0x370 [ 88.851890][ T5828] ? ocfs2_xattr_set+0x4d7/0x1940 [ 88.851910][ T5828] ocfs2_xattr_set+0xf52/0x1940 [ 88.851944][ T5828] ? __pfx_ocfs2_xattr_set+0x10/0x10 [ 88.851964][ T5828] ? __pfx_ocfs2_inode_lock_full_nested+0x10/0x10 [ 88.851985][ T5828] ? __lock_acquire+0xad5/0xd80 [ 88.852011][ T5828] ? smk_tskacc+0x300/0x370 [ 88.852030][ T5828] ? posix_xattr_acl+0xa9/0xd0 [ 88.852044][ T5828] ? evm_protect_xattr+0x4c0/0xb50 [ 88.852057][ T5828] ? ocfs2_xattr_user_set+0xae/0x100 [ 88.852078][ T5828] ? __pfx_ocfs2_xattr_user_set+0x10/0x10 [ 88.852099][ T5828] __vfs_setxattr+0x468/0x4a0 [ 88.852119][ T5828] __vfs_setxattr_noperm+0x12e/0x660 [ 88.852137][ T5828] vfs_setxattr+0x223/0x430 [ 88.852154][ T5828] ? __pfx_vfs_setxattr+0x10/0x10 [ 88.852170][ T5828] ? dput+0x37/0x2b0 [ 88.852186][ T5828] ? dput+0x37/0x2b0 [ 88.852201][ T5828] ovl_get_workdir+0xea3/0x19e0 [ 88.852219][ T5828] ? __pfx_ovl_get_workdir+0x10/0x10 [ 88.852236][ T5828] ? do_raw_spin_lock+0x151/0x370 [ 88.852261][ T5828] ? _raw_spin_unlock+0x28/0x50 [ 88.852274][ T5828] ? ovl_inuse_trylock+0xab/0xf0 [ 88.852296][ T5828] ovl_fill_super+0x1386/0x3720 [ 88.852316][ T5828] ? shrinker_register+0x118/0x230 [ 88.852341][ T5828] ? __pfx_ovl_fill_super+0x10/0x10 [ 88.852358][ T5828] ? __raw_spin_lock_init+0x45/0x100 [ 88.852382][ T5828] ? sget_fc+0x960/0xa50 [ 88.852400][ T5828] ? __pfx_set_anon_super_fc+0x10/0x10 [ 88.852420][ T5828] ? __pfx_ovl_fill_super+0x10/0x10 [ 88.852432][ T5828] get_tree_nodev+0xb7/0x140 [ 88.852453][ T5828] vfs_get_tree+0x90/0x2b0 [ 88.852475][ T5828] do_new_mount+0x2cf/0xb70 [ 88.852492][ T5828] ? __pfx_do_new_mount+0x10/0x10 [ 88.852510][ T5828] __se_sys_mount+0x38c/0x400 [ 88.852528][ T5828] ? __pfx___se_sys_mount+0x10/0x10 [ 88.852546][ T5828] ? __x64_sys_mount+0x20/0xc0 [ 88.852562][ T5828] do_syscall_64+0xf3/0x230 [ 88.852579][ T5828] ? clear_bhb_loop+0x45/0xa0 [ 88.852595][ T5828] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.852609][ T5828] RIP: 0033:0x7f6b2eecf2b9 [ 88.852631][ T5828] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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 [ 88.852644][ T5828] RSP: 002b:00007ffe94b26598 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 88.852658][ T5828] RAX: ffffffffffffffda RBX: 7474617872657375 RCX: 00007f6b2eecf2b9 [ 88.852669][ T5828] RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000 [ 88.852679][ T5828] RBP: 00007ffe94b265a8 R08: 0000200000000280 R09: 00007f6b2ee9b240 [ 88.852689][ T5828] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,userxattr,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 88.852697][ T5828] R13: 00007ffe94b26