./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1177322960 <...> Warning: Permanently added '10.128.0.185' (ED25519) to the list of known hosts. execve("./syz-executor1177322960", ["./syz-executor1177322960"], 0x7fff87d485a0 /* 10 vars */) = 0 brk(NULL) = 0x555573726000 brk(0x555573726e00) = 0x555573726e00 arch_prctl(ARCH_SET_FS, 0x555573726480) = 0 set_tid_address(0x555573726750) = 5832 set_robust_list(0x555573726760, 24) = 0 rseq(0x555573726da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1177322960", 4096) = 28 getrandom("\xd7\x74\xd3\x69\x39\x3b\x75\xa0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555573726e00 brk(0x555573747e00) = 0x555573747e00 brk(0x555573748000) = 0x555573748000 mprotect(0x7fb430c66000, 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=0x7fb430bbb060, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fb430bc30d0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7fb430bbb060, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fb430bc30d0}, NULL, 8) = 0 executing program write(1, "executing program\n", 18) = 18 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb428600000 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(0x7fb428600000, 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 [ 89.176567][ T5832] loop0: detected capacity change from 0 to 32768 [ 89.220848][ T5832] ======================================================= [ 89.220848][ T5832] WARNING: The mand mount option has been deprecated and [ 89.220848][ T5832] and is ignored by this kernel. Remove the mand [ 89.220848][ T5832] option from the mount to silence this warning. [ 89.220848][ T5832] ======================================================= 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) mkdir("./file0", 0777) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- mkdir("./file1", 0777) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 89.272663][ T5832] JBD2: Ignoring recovery information on journal [ 89.306777][ T5832] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. [ 89.346880][ T5832] overlayfs: upper fs does not support tmpfile. [ 89.355695][ T5832] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 89.363318][ T5832] [ 89.365657][ T5832] ====================================================== [ 89.372667][ T5832] WARNING: possible circular locking dependency detected [ 89.379700][ T5832] 6.15.0-rc1-syzkaller #0 Not tainted [ 89.385414][ T5832] ------------------------------------------------------ [ 89.392444][ T5832] syz-executor117/5832 is trying to acquire lock: [ 89.398854][ T5832] ffff88807a1e1800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 89.412413][ T5832] [ 89.412413][ T5832] but task is already holding lock: [ 89.419787][ T5832] ffff88807a1e4e38 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x635/0x1940 [ 89.429295][ T5832] [ 89.429295][ T5832] which lock already depends on the new lock. [ 89.429295][ T5832] [ 89.439697][ T5832] [ 89.439697][ T5832] the existing dependency chain (in reverse order) is: [ 89.448714][ T5832] [ 89.448714][ T5832] -> #4 (&oi->ip_xattr_sem){+.+.}-{4:4}: [ 89.456563][ T5832] lock_acquire+0x116/0x2f0 [ 89.461604][ T5832] down_write+0x9c/0x220 [ 89.466381][ T5832] ocfs2_xattr_set_handle+0x53b/0xa20 [ 89.472277][ T5832] ocfs2_init_security_set+0xbd/0xd0 [ 89.478087][ T5832] ocfs2_mknod+0x1cd3/0x2b30 [ 89.483363][ T5832] ocfs2_mkdir+0x19c/0x470 [ 89.488313][ T5832] vfs_mkdir+0x2f9/0x500 [ 89.493154][ T5832] do_mkdirat+0x273/0x3f0 [ 89.498019][ T5832] __x64_sys_mkdir+0x6c/0x80 [ 89.503147][ T5832] do_syscall_64+0xf3/0x230 [ 89.508191][ T5832] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.514603][ T5832] [ 89.514603][ T5832] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 89.521907][ T5832] lock_acquire+0x116/0x2f0 [ 89.526930][ T5832] start_this_handle+0x1ee4/0x21a0 [ 89.532561][ T5832] jbd2__journal_start+0x2da/0x5d0 [ 89.538192][ T5832] jbd2_journal_start+0x29/0x40 [ 89.543563][ T5832] ocfs2_start_trans+0x3cd/0x710 [ 89.549022][ T5832] ocfs2_reserve_suballoc_bits+0xa54/0x4f30 [ 89.555438][ T5832] ocfs2_reserve_new_metadata_blocks+0x41c/0x9b0 [ 89.562290][ T5832] ocfs2_mknod+0x143e/0x2b30 [ 89.567400][ T5832] ocfs2_mkdir+0x19c/0x470 [ 89.572333][ T5832] vfs_mkdir+0x2f9/0x500 [ 89.577097][ T5832] do_mkdirat+0x273/0x3f0 [ 89.581966][ T5832] __x64_sys_mkdir+0x6c/0x80 [ 89.587079][ T5832] do_syscall_64+0xf3/0x230 [ 89.592101][ T5832] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.598508][ T5832] [ 89.598508][ T5832] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 89.607022][ T5832] lock_acquire+0x116/0x2f0 [ 89.612040][ T5832] down_read+0xb3/0xa50 [ 89.616716][ T5832] ocfs2_start_trans+0x3c2/0x710 [ 89.622180][ T5832] ocfs2_reserve_suballoc_bits+0xa54/0x4f30 [ 89.628611][ T5832] ocfs2_reserve_new_metadata_blocks+0x41c/0x9b0 [ 89.635457][ T5832] ocfs2_mknod+0x143e/0x2b30 [ 89.640568][ T5832] ocfs2_mkdir+0x19c/0x470 [ 89.645520][ T5832] vfs_mkdir+0x2f9/0x500 [ 89.650299][ T5832] do_mkdirat+0x273/0x3f0 [ 89.655159][ T5832] __x64_sys_mkdir+0x6c/0x80 [ 89.660279][ T5832] do_syscall_64+0xf3/0x230 [ 89.665317][ T5832] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.671916][ T5832] [ 89.671916][ T5832] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 89.679402][ T5832] lock_acquire+0x116/0x2f0 [ 89.684424][ T5832] ocfs2_start_trans+0x2bd/0x710 [ 89.689885][ T5832] ocfs2_mknod+0x1510/0x2b30 [ 89.694991][ T5832] ocfs2_mkdir+0x19c/0x470 [ 89.699924][ T5832] vfs_mkdir+0x2f9/0x500 [ 89.704702][ T5832] do_mkdirat+0x273/0x3f0 [ 89.709570][ T5832] __x64_sys_mkdir+0x6c/0x80 [ 89.714712][ T5832] do_syscall_64+0xf3/0x230 [ 89.719740][ T5832] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.726157][ T5832] [ 89.726157][ T5832] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 89.736684][ T5832] validate_chain+0xa69/0x24e0 [ 89.741969][ T5832] __lock_acquire+0xad5/0xd80 [ 89.747163][ T5832] lock_acquire+0x116/0x2f0 [ 89.752181][ T5832] down_write+0x9c/0x220 [ 89.756947][ T5832] ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 89.763613][ T5832] ocfs2_reserve_clusters_with_limit+0x1ba/0xb60 [ 89.770477][ T5832] ocfs2_init_xattr_set_ctxt+0x435/0x900 [ 89.776634][ T5832] ocfs2_xattr_set+0xf52/0x1940 [ 89.782029][ T5832] __vfs_setxattr+0x468/0x4a0 [ 89.787225][ T5832] __vfs_setxattr_noperm+0x12e/0x660 [ 89.793023][ T5832] vfs_setxattr+0x223/0x430 [ 89.798041][ T5832] ovl_get_workdir+0xea3/0x19e0 [ 89.803407][ T5832] ovl_fill_super+0x1386/0x3720 [ 89.808805][ T5832] get_tree_nodev+0xb7/0x140 [ 89.813933][ T5832] vfs_get_tree+0x90/0x2b0 [ 89.818873][ T5832] do_new_mount+0x2cf/0xb70 [ 89.823895][ T5832] __se_sys_mount+0x38c/0x400 [ 89.829085][ T5832] do_syscall_64+0xf3/0x230 [ 89.834102][ T5832] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.840506][ T5832] [ 89.840506][ T5832] other info that might help us debug this: [ 89.840506][ T5832] [ 89.850725][ T5832] Chain exists of: [ 89.850725][ T5832] &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5 --> jbd2_handle --> &oi->ip_xattr_sem [ 89.850725][ T5832] [ 89.866469][ T5832] Possible unsafe locking scenario: [ 89.866469][ T5832] [ 89.873906][ T5832] CPU0 CPU1 [ 89.879266][ T5832] ---- ---- [ 89.884618][ T5832] lock(&oi->ip_xattr_sem); [ 89.889209][ T5832] lock(jbd2_handle); [ 89.895803][ T5832] lock(&oi->ip_xattr_sem); [ 89.902914][ T5832] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 89.910200][ T5832] [ 89.910200][ T5832] *** DEADLOCK *** [ 89.910200][ T5832] [ 89.918333][ T5832] 4 locks held by syz-executor117/5832: [ 89.923955][ T5832] #0: ffff88807843c0e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 [ 89.934081][ T5832] #1: ffff8880240f6420 (sb_writers#8){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 89.943247][ T5832] #2: ffff88807a1e5100 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x1e3/0x430 [ 89.953702][ T5832] #3: ffff88807a1e4e38 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x635/0x1940 [ 89.963652][ T5832] [ 89.963652][ T5832] stack backtrace: [ 89.969670][ T5832] CPU: 0 UID: 0 PID: 5832 Comm: syz-executor117 Not tainted 6.15.0-rc1-syzkaller #0 PREEMPT(full) [ 89.969694][ T5832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 89.969709][ T5832] Call Trace: [ 89.969716][ T5832] [ 89.969723][ T5832] dump_stack_lvl+0x241/0x360 [ 89.969750][ T5832] ? __pfx_dump_stack_lvl+0x10/0x10 [ 89.969769][ T5832] ? __pfx__printk+0x10/0x10 [ 89.969788][ T5832] ? print_lock+0x171/0x1a0 [ 89.969805][ T5832] print_circular_bug+0x2e1/0x300 [ 89.969824][ T5832] check_noncircular+0x142/0x160 [ 89.969845][ T5832] validate_chain+0xa69/0x24e0 [ 89.969864][ T5832] ? do_raw_spin_lock+0x151/0x370 [ 89.969889][ T5832] __lock_acquire+0xad5/0xd80 [ 89.969905][ T5832] lock_acquire+0x116/0x2f0 [ 89.969917][ T5832] ? ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 89.969933][ T5832] ? unwind_get_return_address+0x4d/0x90 [ 89.969953][ T5832] down_write+0x9c/0x220 [ 89.969972][ T5832] ? ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 89.969987][ T5832] ? __pfx_down_write+0x10/0x10 [ 89.970007][ T5832] ? stack_trace_save+0x11a/0x1d0 [ 89.970027][ T5832] ocfs2_reserve_local_alloc_bits+0x12b/0x2800 [ 89.970045][ T5832] ? check_noncircular+0xee/0x160 [ 89.970063][ T5832] ? lockdep_unlock+0x8d/0x120 [ 89.970086][ T5832] ? __pfx_ocfs2_reserve_local_alloc_bits+0x10/0x10 [ 89.970101][ T5832] ? vfs_get_tree+0x90/0x2b0 [ 89.970121][ T5832] ? do_new_mount+0x2cf/0xb70 [ 89.970142][ T5832] ? __lock_acquire+0xad5/0xd80 [ 89.970157][ T5832] ? do_raw_spin_lock+0x151/0x370 [ 89.970178][ T5832] ? do_raw_spin_unlock+0x13c/0x8b0 [ 89.970200][ T5832] ? _raw_spin_unlock+0x28/0x50 [ 89.970213][ T5832] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 89.970237][ T5832] ocfs2_reserve_clusters_with_limit+0x1ba/0xb60 [ 89.970258][ T5832] ? __pfx_ocfs2_reserve_clusters_with_limit+0x10/0x10 [ 89.970280][ T5832] ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10 [ 89.970297][ T5832] ? __lock_acquire+0xad5/0xd80 [ 89.970311][ T5832] ocfs2_init_xattr_set_ctxt+0x435/0x900 [ 89.970334][ T5832] ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10 [ 89.970355][ T5832] ? up_write+0x1ab/0x590 [ 89.970373][ T5832] ? __pfx_ocfs2_truncate_log_needs_flush+0x10/0x10 [ 89.970393][ T5832] ? __pfx_up_write+0x10/0x10 [ 89.970411][ T5832] ? __kmalloc_cache_noprof+0x236/0x370 [ 89.970426][ T5832] ? ocfs2_xattr_set+0x4d7/0x1940 [ 89.970450][ T5832] ocfs2_xattr_set+0xf52/0x1940 [ 89.970477][ T5832] ? __pfx_ocfs2_xattr_set+0x10/0x10 [ 89.970495][ T5832] ? trace_sched_exit_tp+0x3c/0x120 [ 89.970517][ T5832] ? __schedule+0x1b51/0x51f0 [ 89.970534][ T5832] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 89.970563][ T5832] ? smk_tskacc+0x300/0x370 [ 89.970581][ T5832] ? posix_xattr_acl+0xa9/0xd0 [ 89.970595][ T5832] ? evm_protect_xattr+0x4c0/0xb50 [ 89.970610][ T5832] ? __pfx_ocfs2_xattr_trusted_set+0x10/0x10 [ 89.970632][ T5832] __vfs_setxattr+0x468/0x4a0 [ 89.970651][ T5832] __vfs_setxattr_noperm+0x12e/0x660 [ 89.970669][ T5832] vfs_setxattr+0x223/0x430 [ 89.970687][ T5832] ? __pfx_vfs_setxattr+0x10/0x10 [ 89.970703][ T5832] ? dput+0x37/0x2b0 [ 89.970718][ T5832] ? dput+0x37/0x2b0 [ 89.970734][ T5832] ovl_get_workdir+0xea3/0x19e0 [ 89.970752][ T5832] ? __pfx_ovl_get_workdir+0x10/0x10 [ 89.970768][ T5832] ? do_raw_spin_lock+0x151/0x370 [ 89.970793][ T5832] ? _raw_spin_unlock+0x28/0x50 [ 89.970805][ T5832] ? ovl_inuse_trylock+0xab/0xf0 [ 89.970827][ T5832] ovl_fill_super+0x1386/0x3720 [ 89.970848][ T5832] ? shrinker_register+0x118/0x230 [ 89.970873][ T5832] ? __pfx_ovl_fill_super+0x10/0x10 [ 89.970890][ T5832] ? __raw_spin_lock_init+0x45/0x100 [ 89.970914][ T5832] ? sget_fc+0x960/0xa50 [ 89.970932][ T5832] ? __pfx_set_anon_super_fc+0x10/0x10 [ 89.970952][ T5832] ? __pfx_ovl_fill_super+0x10/0x10 [ 89.970965][ T5832] get_tree_nodev+0xb7/0x140 [ 89.970985][ T5832] vfs_get_tree+0x90/0x2b0 [ 89.971007][ T5832] do_new_mount+0x2cf/0xb70 [ 89.971024][ T5832] ? __pfx_do_new_mount+0x10/0x10 [ 89.971042][ T5832] __se_sys_mount+0x38c/0x400 [ 89.971059][ T5832] ? __pfx___se_sys_mount+0x10/0x10 [ 89.971077][ T5832] ? __x64_sys_mount+0x20/0xc0 [ 89.971093][ T5832] do_syscall_64+0xf3/0x230 [ 89.971110][ T5832] ? clear_bhb_loop+0x45/0xa0 [ 89.971126][ T5832] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.971140][ T5832] RIP: 0033:0x7fb430bef0f9 [ 89.971158][ T5832] 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 [ 89.971170][ T5832] RSP: 002b:00007ffd0ffebbd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 89.971185][ T5832] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb430bef0f9 [ 89.971195][ T5832] RDX: 0000200000000040 RSI: 0000200000000000 RDI: 0000000000000000 [ 89.971205][ T5832] RBP: 00007ffd0ffebbe8 R08: 00002000000002c0 R09: 00007fb430bbb060 [ 89.971215][ T5832] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 mount(NULL, "./file0", "overlay", 0, "workdir=./file1,upperdir=./file0,lowerdir=.,,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 89.971224][ T5832] R13: 00007ffd0ffebe48 R14: 0000000000000001 R15: 0000000000000001