./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor976998841 <...> Warning: Permanently added '10.128.0.180' (ED25519) to the list of known hosts. execve("./syz-executor976998841", ["./syz-executor976998841"], 0x7ffea244aba0 /* 10 vars */) = 0 brk(NULL) = 0x555572581000 brk(0x555572581d00) = 0x555572581d00 arch_prctl(ARCH_SET_FS, 0x555572581380) = 0 set_tid_address(0x555572581650) = 5824 set_robust_list(0x555572581660, 24) = 0 rseq(0x555572581ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor976998841", 4096) = 27 getrandom("\x81\x92\x1c\x46\xb4\x53\x11\x84", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555572581d00 brk(0x5555725a2d00) = 0x5555725a2d00 brk(0x5555725a3000) = 0x5555725a3000 mprotect(0x7fdeb5313000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 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) = 0x7fdeace00000 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(0x7fdeace00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 [ 96.582071][ T5824] loop0: detected capacity change from 0 to 32768 [ 96.623715][ T5824] (syz-executor976,5824,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. [ 96.641677][ T5824] (syz-executor976,5824,1):ocfs2_block_check_validate:402 ERROR: CRC32 failed: stored: 0xb3775c19, computed 0x2dd1c265. Applying ECC. mount("/dev/loop0", "./file0", "ocfs2", MS_RELATIME, "usrquota,coherency=full,errors=continue,heartbeat=none,errors=continue,nointr,grpquota,") = 0 [ 96.673174][ T5824] JBD2: Ignoring recovery information on journal [ 96.707318][ T5824] ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) open("./bus", O_RDWR|O_CREAT|O_TRUNC|O_SYNC|O_LARGEFILE|O_NOATIME|0x3c, 000) = 4 rename("./bus", "./file0") = 0 [ 96.801737][ T5824] [ 96.804392][ T5824] ====================================================== [ 96.811901][ T5824] WARNING: possible circular locking dependency detected [ 96.820314][ T5824] 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0 Not tainted [ 96.828283][ T5824] ------------------------------------------------------ [ 96.836600][ T5824] syz-executor976/5824 is trying to acquire lock: [ 96.843891][ T5824] ffff888074110660 (&oi->ip_alloc_sem){+.+.}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 96.855923][ T5824] [ 96.855923][ T5824] but task is already holding lock: [ 96.863957][ T5824] ffff8880741106f8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xa5/0x330 [ 96.875313][ T5824] [ 96.875313][ T5824] which lock already depends on the new lock. [ 96.875313][ T5824] [ 96.887192][ T5824] [ 96.887192][ T5824] the existing dependency chain (in reverse order) is: [ 96.896314][ T5824] [ 96.896314][ T5824] -> #4 (&oi->ip_xattr_sem){++++}-{4:4}: [ 96.905372][ T5824] lock_acquire+0x1ed/0x550 [ 96.910804][ T5824] down_read+0xb1/0xa40 [ 96.917244][ T5824] ocfs2_init_acl+0x397/0x930 [ 96.922944][ T5824] ocfs2_mknod+0x1c05/0x2b30 [ 96.928088][ T5824] ocfs2_create+0x1ab/0x470 [ 96.933785][ T5824] path_openat+0x1c03/0x3590 [ 96.939889][ T5824] do_filp_open+0x27f/0x4e0 [ 96.945958][ T5824] do_sys_openat2+0x13e/0x1d0 [ 96.951485][ T5824] __x64_sys_open+0x225/0x270 [ 96.957223][ T5824] do_syscall_64+0xf3/0x230 [ 96.963619][ T5824] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 96.970876][ T5824] [ 96.970876][ T5824] -> #3 (jbd2_handle){++++}-{0:0}: [ 96.981774][ T5824] lock_acquire+0x1ed/0x550 [ 96.989047][ T5824] start_this_handle+0x1eb4/0x2110 [ 96.996397][ T5824] jbd2__journal_start+0x2da/0x5d0 [ 97.002962][ T5824] jbd2_journal_start+0x29/0x40 [ 97.009410][ T5824] ocfs2_start_trans+0x3c9/0x700 [ 97.015591][ T5824] ocfs2_modify_bh+0xed/0x4d0 [ 97.021758][ T5824] ocfs2_local_read_info+0x158f/0x19f0 [ 97.029826][ T5824] dquot_load_quota_sb+0x762/0xbb0 [ 97.035927][ T5824] dquot_load_quota_inode+0x320/0x600 [ 97.042066][ T5824] ocfs2_enable_quotas+0x169/0x450 [ 97.047835][ T5824] ocfs2_fill_super+0x4ca1/0x5760 [ 97.053988][ T5824] mount_bdev+0x20a/0x2d0 [ 97.059067][ T5824] legacy_get_tree+0xee/0x190 [ 97.064820][ T5824] vfs_get_tree+0x90/0x2b0 [ 97.070594][ T5824] do_new_mount+0x2be/0xb40 [ 97.077667][ T5824] __se_sys_mount+0x2d6/0x3c0 [ 97.083911][ T5824] do_syscall_64+0xf3/0x230 [ 97.089995][ T5824] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.098243][ T5824] [ 97.098243][ T5824] -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: [ 97.107703][ T5824] lock_acquire+0x1ed/0x550 [ 97.113935][ T5824] down_read+0xb1/0xa40 [ 97.120301][ T5824] ocfs2_start_trans+0x3be/0x700 [ 97.126993][ T5824] ocfs2_modify_bh+0xed/0x4d0 [ 97.133502][ T5824] ocfs2_local_read_info+0x158f/0x19f0 [ 97.141368][ T5824] dquot_load_quota_sb+0x762/0xbb0 [ 97.148389][ T5824] dquot_load_quota_inode+0x320/0x600 [ 97.158220][ T5824] ocfs2_enable_quotas+0x169/0x450 [ 97.166986][ T5824] ocfs2_fill_super+0x4ca1/0x5760 [ 97.173021][ T5824] mount_bdev+0x20a/0x2d0 [ 97.178994][ T5824] legacy_get_tree+0xee/0x190 [ 97.184849][ T5824] vfs_get_tree+0x90/0x2b0 [ 97.191257][ T5824] do_new_mount+0x2be/0xb40 [ 97.197619][ T5824] __se_sys_mount+0x2d6/0x3c0 [ 97.203401][ T5824] do_syscall_64+0xf3/0x230 [ 97.209351][ T5824] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.216688][ T5824] [ 97.216688][ T5824] -> #1 (sb_internal#2){.+.+}-{0:0}: [ 97.226288][ T5824] lock_acquire+0x1ed/0x550 [ 97.232231][ T5824] ocfs2_start_trans+0x2b9/0x700 [ 97.238102][ T5824] ocfs2_truncate_file+0x69a/0x1560 [ 97.244544][ T5824] ocfs2_setattr+0x1890/0x1ef0 [ 97.250310][ T5824] notify_change+0xbca/0xe90 [ 97.257543][ T5824] do_truncate+0x220/0x310 [ 97.263436][ T5824] path_openat+0x2e1e/0x3590 [ 97.270782][ T5824] do_filp_open+0x27f/0x4e0 [ 97.277701][ T5824] do_sys_openat2+0x13e/0x1d0 [ 97.284140][ T5824] __x64_sys_creat+0x123/0x170 [ 97.290114][ T5824] do_syscall_64+0xf3/0x230 [ 97.295719][ T5824] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.303944][ T5824] [ 97.303944][ T5824] -> #0 (&oi->ip_alloc_sem){+.+.}-{4:4}: [ 97.313650][ T5824] validate_chain+0x18ef/0x5920 [ 97.319908][ T5824] __lock_acquire+0x1397/0x2100 [ 97.327708][ T5824] lock_acquire+0x1ed/0x550 [ 97.334277][ T5824] down_write+0x99/0x220 [ 97.343360][ T5824] ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 97.351180][ T5824] ocfs2_truncate_file+0xe1b/0x1560 [ 97.359772][ T5824] ocfs2_setattr+0x1890/0x1ef0 [ 97.368852][ T5824] notify_change+0xbca/0xe90 [ 97.376097][ T5824] do_truncate+0x220/0x310 [ 97.382593][ T5824] path_openat+0x2e1e/0x3590 [ 97.389452][ T5824] do_filp_open+0x27f/0x4e0 [ 97.397743][ T5824] do_sys_openat2+0x13e/0x1d0 [ 97.404983][ T5824] __x64_sys_creat+0x123/0x170 [ 97.412167][ T5824] do_syscall_64+0xf3/0x230 [ 97.419997][ T5824] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.433733][ T5824] [ 97.433733][ T5824] other info that might help us debug this: [ 97.433733][ T5824] [ 97.453074][ T5824] Chain exists of: [ 97.453074][ T5824] &oi->ip_alloc_sem --> jbd2_handle --> &oi->ip_xattr_sem [ 97.453074][ T5824] [ 97.471497][ T5824] Possible unsafe locking scenario: [ 97.471497][ T5824] [ 97.480899][ T5824] CPU0 CPU1 [ 97.491773][ T5824] ---- ---- [ 97.500842][ T5824] lock(&oi->ip_xattr_sem); [ 97.506707][ T5824] lock(jbd2_handle); [ 97.517451][ T5824] lock(&oi->ip_xattr_sem); [ 97.527202][ T5824] lock(&oi->ip_alloc_sem); [ 97.532626][ T5824] [ 97.532626][ T5824] *** DEADLOCK *** [ 97.532626][ T5824] [ 97.544892][ T5824] 3 locks held by syz-executor976/5824: [ 97.553068][ T5824] #0: ffff88807ef32420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 97.565788][ T5824] #1: ffff8880741109c0 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: do_truncate+0x20c/0x310 [ 97.578811][ T5824] #2: ffff8880741106f8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_try_remove_refcount_tree+0xa5/0x330 [ 97.591937][ T5824] [ 97.591937][ T5824] stack backtrace: [ 97.598857][ T5824] CPU: 0 UID: 0 PID: 5824 Comm: syz-executor976 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0 [ 97.611473][ T5824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 97.621686][ T5824] Call Trace: [ 97.625524][ T5824] [ 97.628695][ T5824] dump_stack_lvl+0x241/0x360 [ 97.633722][ T5824] ? __pfx_dump_stack_lvl+0x10/0x10 [ 97.640696][ T5824] ? __pfx__printk+0x10/0x10 [ 97.646270][ T5824] print_circular_bug+0x13a/0x1b0 [ 97.652080][ T5824] check_noncircular+0x36a/0x4a0 [ 97.657564][ T5824] ? __pfx_check_noncircular+0x10/0x10 [ 97.663563][ T5824] ? lockdep_lock+0x123/0x2b0 [ 97.668733][ T5824] validate_chain+0x18ef/0x5920 [ 97.674724][ T5824] ? __pfx_validate_chain+0x10/0x10 [ 97.682509][ T5824] ? do_sys_openat2+0x13e/0x1d0 [ 97.688054][ T5824] ? do_syscall_64+0xf3/0x230 [ 97.695238][ T5824] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.702515][ T5824] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 97.711004][ T5824] ? mark_lock+0x9a/0x360 [ 97.716433][ T5824] __lock_acquire+0x1397/0x2100 [ 97.722670][ T5824] lock_acquire+0x1ed/0x550 [ 97.728418][ T5824] ? ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 97.735623][ T5824] ? __pfx_lock_acquire+0x10/0x10 [ 97.742009][ T5824] ? __pfx___might_resched+0x10/0x10 [ 97.748545][ T5824] ? ocfs2_truncate_file+0xd45/0x1560 [ 97.754945][ T5824] ? __pfx_lock_release+0x10/0x10 [ 97.760912][ T5824] down_write+0x99/0x220 [ 97.767204][ T5824] ? ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 97.773493][ T5824] ? __pfx_down_write+0x10/0x10 [ 97.778590][ T5824] ocfs2_try_remove_refcount_tree+0xb6/0x330 [ 97.785811][ T5824] ? __pfx_ocfs2_try_remove_refcount_tree+0x10/0x10 [ 97.793534][ T5824] ? ocfs2_metadata_cache_get_super+0x43/0x80 [ 97.801922][ T5824] ? ocfs2_inode_cache_get_super+0xd/0x40 [ 97.809352][ T5824] ocfs2_truncate_file+0xe1b/0x1560 [ 97.816596][ T5824] ? ocfs2_inode_lock_tracker+0x45a/0x760 [ 97.823767][ T5824] ? __pfx_ocfs2_truncate_file+0x10/0x10 [ 97.831017][ T5824] ? do_raw_spin_unlock+0x13c/0x8b0 [ 97.837347][ T5824] ? _raw_spin_unlock+0x28/0x50 [ 97.843281][ T5824] ? ocfs2_inode_lock_tracker+0x45a/0x760 [ 97.849827][ T5824] ? __pfx_ocfs2_inode_lock_tracker+0x10/0x10 [ 97.856640][ T5824] ? ocfs2_rw_lock+0x13e/0x260 [ 97.863109][ T5824] ? __pfx_ocfs2_rw_lock+0x10/0x10 [ 97.870964][ T5824] ? jbd2_journal_begin_ordered_truncate+0xc0/0x160 [ 97.879521][ T5824] ocfs2_setattr+0x1890/0x1ef0 [ 97.885146][ T5824] ? __pfx_ocfs2_setattr+0x10/0x10 [ 97.891034][ T5824] ? __pfx_smack_inode_setattr+0x10/0x10 [ 97.897429][ T5824] ? current_time+0x282/0x3c0 [ 97.902385][ T5824] ? evm_inode_setattr+0x1b2/0x7d0 [ 97.909424][ T5824] ? security_inode_setattr+0xdb/0x350 [ 97.915570][ T5824] ? __pfx_ocfs2_setattr+0x10/0x10 [ 97.922854][ T5824] notify_change+0xbca/0xe90 [ 97.928630][ T5824] do_truncate+0x220/0x310 [ 97.934504][ T5824] ? __pfx_do_truncate+0x10/0x10 [ 97.939886][ T5824] path_openat+0x2e1e/0x3590 [ 97.944702][ T5824] ? __pfx_path_openat+0x10/0x10 [ 97.949775][ T5824] do_filp_open+0x27f/0x4e0 [ 97.954325][ T5824] ? __pfx_do_filp_open+0x10/0x10 [ 97.959851][ T5824] ? do_raw_spin_lock+0x14f/0x370 [ 97.965025][ T5824] do_sys_openat2+0x13e/0x1d0 [ 97.969720][ T5824] ? __pfx_do_sys_openat2+0x10/0x10 [ 97.975124][ T5824] ? _raw_spin_unlock_irq+0x2e/0x50 [ 97.980614][ T5824] ? ptrace_notify+0x279/0x380 [ 97.985523][ T5824] __x64_sys_creat+0x123/0x170 [ 97.990756][ T5824] ? __pfx___x64_sys_creat+0x10/0x10 [ 97.996429][ T5824] ? do_syscall_64+0x100/0x230 [ 98.001340][ T5824] do_syscall_64+0xf3/0x230 [ 98.005983][ T5824] ? clear_bhb_loop+0x35/0x90 [ 98.010809][ T5824] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 98.017486][ T5824] RIP: 0033:0x7fdeb529b779 [ 98.022717][ T5824] 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 [ 98.044214][ T5824] RSP: 002b:00007ffc71db1158 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 creat("./file0", 040) = 5 exit_group(0) = ? +++ exited with 0 +++ [ 98.054242][ T5824] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fdeb