./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1543081656 <...> Warning: Permanently added '10.128.0.210' (ED25519) to the list of known hosts. execve("./syz-executor1543081656", ["./syz-executor1543081656"], 0x7ffcaa0bcce0 /* 10 vars */) = 0 brk(NULL) = 0x55558edc8000 brk(0x55558edc8e00) = 0x55558edc8e00 arch_prctl(ARCH_SET_FS, 0x55558edc8480) = 0 set_tid_address(0x55558edc8750) = 5821 set_robust_list(0x55558edc8760, 24) = 0 rseq(0x55558edc8da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1543081656", 4096) = 28 getrandom("\x3c\x09\x80\xbb\x02\x47\xba\xe7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558edc8e00 brk(0x55558ede9e00) = 0x55558ede9e00 brk(0x55558edea000) = 0x55558edea000 mprotect(0x7f5a50b75000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 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=0x7f5a50aca130, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f5a50ad21a0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f5a50aca130, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f5a50ad21a0}, 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) = 0x7f5a48600000 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(0x7f5a48600000, 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 [ 79.021974][ T5821] loop0: detected capacity change from 0 to 32768 [ 79.045465][ T5821] ======================================================= [ 79.045465][ T5821] WARNING: The mand mount option has been deprecated and [ 79.045465][ T5821] and is ignored by this kernel. Remove the mand [ 79.045465][ T5821] option from the mount to silence this warning. [ 79.045465][ T5821] ======================================================= mount("/dev/loop0", "./file1", "ocfs2", MS_SYNCHRONOUS|MS_MANDLOCK|MS_DIRSYNC|MS_NODIRATIME|MS_STRICTATIME, "acl,heartbeat=none,errors=remount-ro,coherency=full,preferred_slot=00000000000000000001,localflocks,"...) = 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} --- [ 79.117755][ T5821] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. mkdir("./file2", 0777) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [ 79.208398][ T5821] overlayfs: upper fs does not support tmpfile. [ 79.218062][ T5821] overlayfs: upper fs does not support RENAME_WHITEOUT. [ 79.226153][ T5821] [ 79.228492][ T5821] ====================================================== [ 79.235531][ T5821] WARNING: possible circular locking dependency detected [ 79.242551][ T5821] 6.14.0-rc6-syzkaller-00103-g4003c9e78778 #0 Not tainted [ 79.249649][ T5821] ------------------------------------------------------ [ 79.256657][ T5821] syz-executor154/5821 is trying to acquire lock: [ 79.263058][ T5821] ffff88807397d100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x135/0x28d0 [ 79.276604][ T5821] [ 79.276604][ T5821] but task is already holding lock: [ 79.283961][ T5821] ffff88807384eab8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 [ 79.293453][ T5821] [ 79.293453][ T5821] which lock already depends on the new lock. [ 79.293453][ T5821] [ 79.303845][ T5821] [ 79.303845][ T5821] the existing dependency chain (in reverse order) is: [ 79.312849][ T5821] [ 79.312849][ T5821] -> #4 (&oi->ip_xattr_sem){+.+.}-{4:4}: [ 79.320689][ T5821] lock_acquire+0x1ed/0x550 [ 79.325746][ T5821] down_write+0x99/0x220 [ 79.330526][ T5821] ocfs2_xattr_set_handle+0x539/0xa10 [ 79.336439][ T5821] ocfs2_init_security_set+0xbd/0xd0 [ 79.342277][ T5821] ocfs2_mknod+0x1ccf/0x2b30 [ 79.347390][ T5821] ocfs2_mkdir+0x1ab/0x470 [ 79.352320][ T5821] vfs_mkdir+0x2f9/0x4f0 [ 79.357105][ T5821] do_mkdirat+0x264/0x3a0 [ 79.361957][ T5821] __x64_sys_mkdir+0x6c/0x80 [ 79.367073][ T5821] do_syscall_64+0xf3/0x230 [ 79.372112][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.378541][ T5821] [ 79.378541][ T5821] -> #3 (jbd2_handle){.+.+}-{0:0}: [ 79.385846][ T5821] lock_acquire+0x1ed/0x550 [ 79.390874][ T5821] start_this_handle+0x1eb4/0x2110 [ 79.396512][ T5821] jbd2__journal_start+0x2da/0x5d0 [ 79.402147][ T5821] jbd2_journal_start+0x29/0x40 [ 79.407533][ T5821] ocfs2_start_trans+0x3c9/0x700 [ 79.412989][ T5821] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 [ 79.419417][ T5821] ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 [ 79.426271][ T5821] ocfs2_mknod+0x143a/0x2b30 [ 79.431378][ T5821] ocfs2_mkdir+0x1ab/0x470 [ 79.436312][ T5821] vfs_mkdir+0x2f9/0x4f0 [ 79.441089][ T5821] do_mkdirat+0x264/0x3a0 [ 79.445963][ T5821] __x64_sys_mkdir+0x6c/0x80 [ 79.451072][ T5821] do_syscall_64+0xf3/0x230 [ 79.456094][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.462505][ T5821] [ 79.462505][ T5821] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 79.471036][ T5821] lock_acquire+0x1ed/0x550 [ 79.476064][ T5821] down_read+0xb1/0xa40 [ 79.480736][ T5821] ocfs2_start_trans+0x3be/0x700 [ 79.486220][ T5821] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 [ 79.492648][ T5821] ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 [ 79.499502][ T5821] ocfs2_mknod+0x143a/0x2b30 [ 79.504641][ T5821] ocfs2_mkdir+0x1ab/0x470 [ 79.509571][ T5821] vfs_mkdir+0x2f9/0x4f0 [ 79.514337][ T5821] do_mkdirat+0x264/0x3a0 [ 79.519190][ T5821] __x64_sys_mkdir+0x6c/0x80 [ 79.524301][ T5821] do_syscall_64+0xf3/0x230 [ 79.529366][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.535789][ T5821] [ 79.535789][ T5821] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 79.543273][ T5821] lock_acquire+0x1ed/0x550 [ 79.548321][ T5821] ocfs2_start_trans+0x2b9/0x700 [ 79.553776][ T5821] ocfs2_mknod+0x150c/0x2b30 [ 79.558882][ T5821] ocfs2_mkdir+0x1ab/0x470 [ 79.563842][ T5821] vfs_mkdir+0x2f9/0x4f0 [ 79.568629][ T5821] do_mkdirat+0x264/0x3a0 [ 79.573580][ T5821] __x64_sys_mkdir+0x6c/0x80 [ 79.578731][ T5821] do_syscall_64+0xf3/0x230 [ 79.583786][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.590209][ T5821] [ 79.590209][ T5821] -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}: [ 79.600734][ T5821] validate_chain+0x18ef/0x5920 [ 79.606113][ T5821] __lock_acquire+0x1397/0x2100 [ 79.611489][ T5821] lock_acquire+0x1ed/0x550 [ 79.616515][ T5821] down_write+0x99/0x220 [ 79.621369][ T5821] ocfs2_reserve_local_alloc_bits+0x135/0x28d0 [ 79.628047][ T5821] ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 [ 79.634893][ T5821] ocfs2_init_xattr_set_ctxt+0x433/0x8f0 [ 79.641065][ T5821] ocfs2_xattr_set+0xf4e/0x1930 [ 79.646454][ T5821] __vfs_setxattr+0x468/0x4a0 [ 79.651663][ T5821] __vfs_setxattr_noperm+0x12e/0x660 [ 79.657474][ T5821] vfs_setxattr+0x221/0x430 [ 79.662511][ T5821] ovl_get_workdir+0xda0/0x1930 [ 79.667912][ T5821] ovl_fill_super+0x12b3/0x3640 [ 79.673285][ T5821] get_tree_nodev+0xb7/0x140 [ 79.678394][ T5821] vfs_get_tree+0x90/0x2b0 [ 79.683338][ T5821] do_new_mount+0x2be/0xb40 [ 79.688405][ T5821] __se_sys_mount+0x2d6/0x3c0 [ 79.693602][ T5821] do_syscall_64+0xf3/0x230 [ 79.698620][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.705127][ T5821] [ 79.705127][ T5821] other info that might help us debug this: [ 79.705127][ T5821] [ 79.715435][ T5821] Chain exists of: [ 79.715435][ T5821] &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5 --> jbd2_handle --> &oi->ip_xattr_sem [ 79.715435][ T5821] [ 79.731189][ T5821] Possible unsafe locking scenario: [ 79.731189][ T5821] [ 79.738669][ T5821] CPU0 CPU1 [ 79.744030][ T5821] ---- ---- [ 79.749389][ T5821] lock(&oi->ip_xattr_sem); [ 79.753983][ T5821] lock(jbd2_handle); [ 79.760579][ T5821] lock(&oi->ip_xattr_sem); [ 79.767684][ T5821] lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5); [ 79.774972][ T5821] [ 79.774972][ T5821] *** DEADLOCK *** [ 79.774972][ T5821] [ 79.783105][ T5821] 4 locks held by syz-executor154/5821: [ 79.788645][ T5821] #0: ffff88807950c0e0 (&type->s_umount_key#43/1){+.+.}-{4:4}, at: alloc_super+0x221/0x9d0 [ 79.798779][ T5821] #1: ffff88807d5c2420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 79.807942][ T5821] #2: ffff88807384ed80 (&sb->s_type->i_mutex_key#16){++++}-{4:4}, at: vfs_setxattr+0x1e1/0x430 [ 79.818396][ T5821] #3: ffff88807384eab8 (&oi->ip_xattr_sem){+.+.}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 [ 79.828325][ T5821] [ 79.828325][ T5821] stack backtrace: [ 79.834315][ T5821] CPU: 1 UID: 0 PID: 5821 Comm: syz-executor154 Not tainted 6.14.0-rc6-syzkaller-00103-g4003c9e78778 #0 [ 79.834332][ T5821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 79.834344][ T5821] Call Trace: [ 79.834351][ T5821] [ 79.834358][ T5821] dump_stack_lvl+0x241/0x360 [ 79.834376][ T5821] ? __pfx_dump_stack_lvl+0x10/0x10 [ 79.834390][ T5821] ? __pfx__printk+0x10/0x10 [ 79.834415][ T5821] print_circular_bug+0x13a/0x1b0 [ 79.834433][ T5821] check_noncircular+0x36a/0x4a0 [ 79.834449][ T5821] ? __pfx_check_noncircular+0x10/0x10 [ 79.834464][ T5821] ? lockdep_lock+0x123/0x2b0 [ 79.834487][ T5821] validate_chain+0x18ef/0x5920 [ 79.834501][ T5821] ? __pfx_validate_chain+0x10/0x10 [ 79.834522][ T5821] ? __pfx_validate_chain+0x10/0x10 [ 79.834539][ T5821] ? mark_lock+0x9a/0x360 [ 79.834565][ T5821] ? ocfs2_get_system_file_inode+0x1e3/0x840 [ 79.834590][ T5821] ? __pfx_lock_release+0x10/0x10 [ 79.834611][ T5821] ? mark_lock+0x9a/0x360 [ 79.834634][ T5821] __lock_acquire+0x1397/0x2100 [ 79.834659][ T5821] lock_acquire+0x1ed/0x550 [ 79.834679][ T5821] ? ocfs2_reserve_local_alloc_bits+0x135/0x28d0 [ 79.834705][ T5821] ? __pfx_lock_acquire+0x10/0x10 [ 79.834728][ T5821] ? __pfx___might_resched+0x10/0x10 [ 79.834746][ T5821] ? __pfx_ocfs2_get_system_file_inode+0x10/0x10 [ 79.834770][ T5821] ? __pfx_validate_chain+0x10/0x10 [ 79.834784][ T5821] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 79.834805][ T5821] down_write+0x99/0x220 [ 79.834820][ T5821] ? ocfs2_reserve_local_alloc_bits+0x135/0x28d0 [ 79.834843][ T5821] ? __pfx_down_write+0x10/0x10 [ 79.834860][ T5821] ocfs2_reserve_local_alloc_bits+0x135/0x28d0 [ 79.834887][ T5821] ? mark_lock+0x9a/0x360 [ 79.834910][ T5821] ? __lock_acquire+0x1397/0x2100 [ 79.834934][ T5821] ? __pfx_ocfs2_reserve_local_alloc_bits+0x10/0x10 [ 79.834964][ T5821] ? __pfx_lock_acquire+0x10/0x10 [ 79.834984][ T5821] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 79.835006][ T5821] ? __pfx_lock_release+0x10/0x10 [ 79.835025][ T5821] ? do_raw_spin_lock+0x14f/0x370 [ 79.835044][ T5821] ? do_raw_spin_unlock+0x13c/0x8b0 [ 79.835063][ T5821] ? _raw_spin_unlock+0x28/0x50 [ 79.835082][ T5821] ? ocfs2_alloc_should_use_local+0x155/0x320 [ 79.835110][ T5821] ocfs2_reserve_clusters_with_limit+0x1b8/0xb60 [ 79.835130][ T5821] ? __pfx_ocfs2_reserve_clusters_with_limit+0x10/0x10 [ 79.835150][ T5821] ? __pfx_ocfs2_calc_xattr_set_need+0x10/0x10 [ 79.835175][ T5821] ? ocfs2_xattr_set+0xf00/0x1930 [ 79.835195][ T5821] ocfs2_init_xattr_set_ctxt+0x433/0x8f0 [ 79.835216][ T5821] ? __pfx_ocfs2_init_xattr_set_ctxt+0x10/0x10 [ 79.835236][ T5821] ? up_write+0x1a9/0x590 [ 79.835251][ T5821] ? __pfx_ocfs2_truncate_log_needs_flush+0x10/0x10 [ 79.835270][ T5821] ? __pfx_up_write+0x10/0x10 [ 79.835285][ T5821] ? __kmalloc_cache_noprof+0x243/0x390 [ 79.835300][ T5821] ? ocfs2_xattr_set+0x4d5/0x1930 [ 79.835318][ T5821] ocfs2_xattr_set+0xf4e/0x1930 [ 79.835343][ T5821] ? __pfx_ocfs2_xattr_set+0x10/0x10 [ 79.835370][ T5821] ? mark_lock+0x9a/0x360 [ 79.835398][ T5821] ? smk_tskacc+0x300/0x370 [ 79.835419][ T5821] ? posix_xattr_acl+0xa9/0xd0 [ 79.835434][ T5821] ? evm_protect_xattr+0x4be/0xb40 [ 79.835450][ T5821] ? __pfx_ocfs2_xattr_trusted_set+0x10/0x10 [ 79.835471][ T5821] __vfs_setxattr+0x468/0x4a0 [ 79.835499][ T5821] __vfs_setxattr_noperm+0x12e/0x660 [ 79.835525][ T5821] vfs_setxattr+0x221/0x430 [ 79.835541][ T5821] ? __pfx_vfs_setxattr+0x10/0x10 [ 79.835554][ T5821] ? _raw_spin_unlock+0x28/0x50 [ 79.835574][ T5821] ? dput+0x37/0x2b0 [ 79.835589][ T5821] ovl_get_workdir+0xda0/0x1930 [ 79.835614][ T5821] ? __pfx_ovl_get_workdir+0x10/0x10 [ 79.835636][ T5821] ? ovl_inuse_trylock+0xab/0xf0 [ 79.835654][ T5821] ? do_raw_spin_lock+0x14f/0x370 [ 79.835676][ T5821] ? _raw_spin_unlock+0x28/0x50 [ 79.835695][ T5821] ? ovl_inuse_trylock+0xab/0xf0 [ 79.835714][ T5821] ovl_fill_super+0x12b3/0x3640 [ 79.835744][ T5821] ? __pfx_ovl_fill_super+0x10/0x10 [ 79.835763][ T5821] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 79.835785][ T5821] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 79.835815][ T5821] ? sget_fc+0x960/0xa50 [ 79.835833][ T5821] ? __pfx_set_anon_super_fc+0x10/0x10 [ 79.835852][ T5821] ? __pfx_ovl_fill_super+0x10/0x10 [ 79.835872][ T5821] get_tree_nodev+0xb7/0x140 [ 79.835892][ T5821] vfs_get_tree+0x90/0x2b0 [ 79.835913][ T5821] do_new_mount+0x2be/0xb40 [ 79.835929][ T5821] ? __pfx_do_new_mount+0x10/0x10 [ 79.835945][ T5821] __se_sys_mount+0x2d6/0x3c0 [ 79.835962][ T5821] ? __pfx___se_sys_mount+0x10/0x10 [ 79.835977][ T5821] ? exc_page_fault+0x590/0x8b0 [ 79.835999][ T5821] ? __x64_sys_mount+0x20/0xc0 [ 79.836014][ T5821] do_syscall_64+0xf3/0x230 [ 79.836027][ T5821] ? clear_bhb_loop+0x35/0x90 [ 79.836049][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.836076][ T5821] RIP: 0033:0x7f5a50afe1b9 [ 79.836092][ T5821] 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 [ 79.836107][ T5821] RSP: 002b:00007ffc90dd9aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 79.836122][ T5821] RAX: ffffffffffffffda RBX: 6e6f3d74726f7078 RCX: 00007f5a50afe1b9 [ 79.836133][ T5821] RDX: 0000400000000000 RSI: 0000400000000040 RDI: 0000000000000000 [ 79.836143][ T5821] RBP: 00007ffc90dd9ab8 R08: 0000400000000200 R09: 00007f5a50aca130 [ 79.836153][ T5821] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 mount(NULL, "./file0", "overlay", MS_NOEXEC, "workdir=./file0,lowerdir=.,upperdir=./file2,nfs_export=on,,") = -1 EINVAL (Invalid argument) exit_group(0) = ? +++ exited with 0 +++ [ 79.836162][ T5821] R13: 00007ffc90dd9d18 R1