./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3569419316 <...> Warning: Permanently added '10.128.0.45' (ECDSA) to the list of known hosts. execve("./syz-executor3569419316", ["./syz-executor3569419316"], 0x7ffea6806950 /* 10 vars */) = 0 brk(NULL) = 0x555556956000 brk(0x555556956c40) = 0x555556956c40 arch_prctl(ARCH_SET_FS, 0x555556956300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3569419316", 4096) = 28 brk(0x555556977c40) = 0x555556977c40 brk(0x555556978000) = 0x555556978000 mprotect(0x7f3739cc1000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5067 attached , child_tidptr=0x5555569565d0) = 5067 [pid 5067] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setsid() = 1 [pid 5067] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5067] unshare(CLONE_NEWNS) = 0 [pid 5067] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5067] unshare(CLONE_NEWIPC) = 0 [pid 5067] unshare(CLONE_NEWCGROUP) = 0 [pid 5067] unshare(CLONE_NEWUTS) = 0 [pid 5067] unshare(CLONE_SYSVSEM) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "16777216", 8) = 8 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "536870912", 9) = 9 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "8192", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5067] close(3) = 0 [pid 5067] getpid() = 1 [pid 5067] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 80 3c 20 00 74 08 4c 89 f7 e8 ef 41 b3 ff 4d 8b 36 48 b8 00 00 [ 53.502838][ T5067] RSP: 0018:ffffc90003bff100 EFLAGS: 00010206 [ 53.508886][ T5067] RAX: 0000000000000005 RBX: ffffc90003bff8c0 RCX: dffffc0000000000 [ 53.516850][ T5067] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008 [ 53.524803][ T5067] RBP: ffffc90003bff268 R08: ffffffff822e42d9 R09: ffffc90003bff730 [ 53.532756][ T5067] R10: 0000000000000002 R11: ffff888023991d40 R12: dffffc0000000000 [ 53.540705][ T5067] R13: 0000000000000000 R14: 0000000000000028 R15: 0000000000000000 [ 53.548741][ T5067] FS: 0000555556956300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 53.557649][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.564208][ T5067] CR2: 000055f656836c18 CR3: 000000007aa25000 CR4: 00000000003506f0 [ 53.572162][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.580114][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.588068][ T5067] Call Trace: [ 53.591330][ T5067] [ 53.594247][ T5067] ? search_by_key+0x49c0/0x49c0 [ 53.599261][ T5067] ? reiserfs_delete_item+0x10d0/0x10d0 [ 53.604789][ T5067] ? page_zero_new_buffers+0x852/0x940 [ 53.610268][ T5067] reiserfs_cut_from_item+0x38c/0x25b0 [ 53.615714][ T5067] ? reiserfs_do_truncate+0x15a0/0x15a0 [ 53.621244][ T5067] ? search_by_key+0x4793/0x49c0 [ 53.626181][ T5067] ? asm_common_interrupt+0x22/0x40 [ 53.631372][ T5067] ? lockdep_hardirqs_on+0x8d/0x130 [ 53.636551][ T5067] ? asm_common_interrupt+0x22/0x40 [ 53.641733][ T5067] ? reiserfs_do_truncate+0x29e/0x15a0 [ 53.647268][ T5067] reiserfs_do_truncate+0x9d6/0x15a0 [ 53.652542][ T5067] ? reiserfs_delete_object+0x1a0/0x1a0 [ 53.658070][ T5067] ? _compound_head+0x130/0x130 [ 53.662905][ T5067] ? page_zero_new_buffers+0x851/0x940 [ 53.668431][ T5067] ? journal_begin+0x1f1/0x350 [ 53.673213][ T5067] reiserfs_truncate_file+0x471/0x790 [ 53.678635][ T5067] ? reiserfs_new_symlink+0x6b0/0x6b0 [ 53.684095][ T5067] ? journal_end+0x21e/0x2d0 [ 53.688674][ T5067] reiserfs_file_release+0x887/0xa30 [ 53.693954][ T5067] ? reiserfs_file_open+0x100/0x100 [ 53.699136][ T5067] ? ima_file_free+0x2fb/0x3a0 [ 53.703880][ T5067] ? reiserfs_file_open+0x100/0x100 [ 53.709083][ T5067] __fput+0x3ba/0x880 [ 53.713052][ T5067] task_work_run+0x243/0x300 [ 53.717626][ T5067] ? task_work_cancel+0x290/0x290 [ 53.722633][ T5067] ? __virt_addr_valid+0x21b/0x2d0 [ 53.727729][ T5067] ptrace_notify+0x29a/0x340 [ 53.732297][ T5067] ? read_lock_is_recursive+0x10/0x10 [ 53.737659][ T5067] ? do_notify_parent+0xe00/0xe00 [ 53.742682][ T5067] ? rcu_lock_release+0x20/0x20 [ 53.747534][ T5067] syscall_exit_work+0x8c/0xe0 [ 53.752395][ T5067] syscall_exit_to_user_mode_prepare+0x63/0xc0 [ 53.758547][ T5067] syscall_exit_to_user_mode+0xa/0x60 [ 53.763903][ T5067] do_syscall_64+0x49/0xb0 [ 53.768402][ T5067] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 53.774373][ T5067] RIP: 0033:0x7f3739c112f3 [ 53.778767][ T5067] Code: c7 c2 c0 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 [ 53.798630][ T5067] RSP: 002b:00007ffcb18bf408 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 53.807027][ T5067] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f3739c112f3 [ 53.814980][ T5067] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 [ 53.822951][ T5067] RBP: 00007ffcb18bf418 R08: 0000000000000000 R09: 0000000000000000 [ 53.830905][ T5067] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcb18bf420 [ 53.838866][ T5067] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.847271][ T5067] [ 53.850455][ T5067] Modules linked in: [ 53.854630][ T5067] ---[ end trace 0000000000000000 ]--- [ 53.860111][ T5067] RIP: 0010:prepare_for_delete_or_cut+0x182/0x21a0 [ 53.866632][ T5067] Code: 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 8a 04 20 84 c0 0f 85 f2 17 00 00 4c 63 3b 49 83 c6 28 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 ef 41 b3 ff 4d 8b 36 48 b8 00 00 [ 53.886299][ T5067] RSP: 0018:ffffc90003bff100 EFLAGS: 00010206 [ 53.892423][ T5067] RAX: 0000000000000005 RBX: ffffc90003bff8c0 RCX: dffffc0000000000 [ 53.900450][ T5067] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008 [ 53.908421][ T5067] RBP: ffffc90003bff268 R08: ffffffff822e42d9 R09: ffffc90003bff730 [ 53.916424][ T5067] R10: 0000000000000002 R11: ffff888023991d40 R12: dffffc0000000000 [ 53.924426][ T5067] R13: 0000000000000000 R14: 0000000000000028 R15: 0000000000000000 [ 53.932413][ T5067] FS: 0000555556956300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 53.941396][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.947963][ T5067] CR2: 000055f656836c18 CR3: 000000007aa25000 CR4: 00000000003506f0 [ 53.955959][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.963958][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.971964][ T5067] Kernel panic - not syncing: Fatal exception [ 53.978092][ T5067] Kernel Offset: disabled [ 53.982407][ T5067] Rebooting in 86400 seconds..