./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3365055372 <...> Warning: Permanently added '10.128.0.200' (ED25519) to the list of known hosts. execve("./syz-executor3365055372", ["./syz-executor3365055372"], 0x7ffc355c2c10 /* 10 vars */) = 0 brk(NULL) = 0x555555d9c000 brk(0x555555d9cd00) = 0x555555d9cd00 arch_prctl(ARCH_SET_FS, 0x555555d9c380) = 0 set_tid_address(0x555555d9c650) = 5022 set_robust_list(0x555555d9c660, 24) = 0 rseq(0x555555d9cca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3365055372", 4096) = 28 getrandom("\x11\x35\x98\x7d\x83\xe6\xc3\xc4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555d9cd00 brk(0x555555dbdd00) = 0x555555dbdd00 brk(0x555555dbe000) = 0x555555dbe000 mprotect(0x7fa2351e7000, 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 5023 attached , child_tidptr=0x555555d9c650) = 5023 [pid 5023] set_robust_list(0x555555d9c660, 24) = 0 [pid 5023] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5023] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5023] setsid() = 1 [pid 5023] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5023] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5023] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5023] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5023] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5023] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5023] unshare(CLONE_NEWNS) = 0 [pid 5023] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5023] unshare(CLONE_NEWIPC) = 0 [pid 5023] unshare(CLONE_NEWCGROUP) = 0 [pid 5023] unshare(CLONE_NEWUTS) = 0 [pid 5023] unshare(CLONE_SYSVSEM) = 0 [pid 5023] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5023] write(3, "16777216", 8) = 8 [pid 5023] close(3) = 0 [pid 5023] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5023] write(3, "536870912", 9) = 9 [pid 5023] close(3) = 0 [pid 5023] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5023] write(3, "1024", 4) = 4 [pid 5023] close(3) = 0 [pid 5023] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5023] write(3, "8192", 4) = 4 [pid 5023] close(3) = 0 [pid 5023] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5023] write(3, "1024", 4) = 4 [pid 5023] close(3) = 0 [pid 5023] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5023] write(3, "1024", 4) = 4 [pid 5023] close(3) = 0 [pid 5023] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5023] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5023] close(3) = 0 [pid 5023] getpid() = 1 [pid 5023] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 80 3c 38 00 74 08 4c 89 e7 e8 f2 af b2 ff 4d 8b 3c 24 48 b8 00 [ 57.050413][ T5023] RSP: 0018:ffffc90003c57320 EFLAGS: 00010206 [ 57.056557][ T5023] RAX: 0000000000000005 RBX: ffffc90003c57ae0 RCX: dffffc0000000000 [ 57.064510][ T5023] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008 [ 57.072471][ T5023] RBP: ffffc90003c574a8 R08: ffffffff82361be2 R09: ffffc90003c57970 [ 57.080425][ T5023] R10: 0000000000000002 R11: ffff8880192a0000 R12: 0000000000000028 [ 57.088465][ T5023] R13: 0000000000000fcb R14: 0000000000000000 R15: dffffc0000000000 [ 57.096418][ T5023] FS: 0000555555d9c380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 57.105978][ T5023] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.112570][ T5023] CR2: 00007f269cfde2a9 CR3: 0000000074698000 CR4: 00000000003506f0 [ 57.120658][ T5023] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.128639][ T5023] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.136691][ T5023] Call Trace: [ 57.139972][ T5023] [ 57.142895][ T5023] ? __die_body+0x8b/0xe0 [ 57.147320][ T5023] ? die_addr+0xc9/0x100 [ 57.151556][ T5023] ? exc_general_protection+0x3c2/0x5b0 [ 57.157100][ T5023] ? asm_exc_general_protection+0x26/0x30 [ 57.162818][ T5023] ? prepare_for_delete_or_cut+0x112/0x2240 [ 57.168698][ T5023] ? prepare_for_delete_or_cut+0x18f/0x2240 [ 57.174588][ T5023] ? search_by_key+0x4b60/0x4b60 [ 57.179686][ T5023] ? reiserfs_delete_item+0x1040/0x1040 [ 57.185221][ T5023] reiserfs_cut_from_item+0x3af/0x2580 [ 57.190670][ T5023] ? reiserfs_do_truncate+0x14c0/0x14c0 [ 57.196268][ T5023] ? search_by_key+0x4790/0x4b60 [ 57.201291][ T5023] ? search_by_key+0x4b60/0x4b60 [ 57.206228][ T5023] ? make_cpu_key+0x2f/0x230 [ 57.210913][ T5023] ? sd_print_vi+0xc0/0xc0 [ 57.215315][ T5023] reiserfs_do_truncate+0x9b9/0x14c0 [ 57.220596][ T5023] ? reiserfs_delete_object+0x1a0/0x1a0 [ 57.226135][ T5023] ? _compound_head+0x120/0x120 [ 57.231008][ T5023] ? journal_begin+0x1f3/0x360 [ 57.235796][ T5023] reiserfs_truncate_file+0x4da/0x820 [ 57.241184][ T5023] ? reiserfs_new_symlink+0x770/0x770 [ 57.246545][ T5023] ? journal_end+0x209/0x2c0 [ 57.251128][ T5023] reiserfs_file_release+0x8ca/0xaa0 [ 57.256514][ T5023] ? reiserfs_file_open+0x120/0x120 [ 57.261719][ T5023] ? __lock_acquire+0x7f70/0x7f70 [ 57.266731][ T5023] ? reiserfs_file_open+0x120/0x120 [ 57.271930][ T5023] __fput+0x3f8/0x910 [ 57.275896][ T5023] __se_sys_close+0x15f/0x220 [ 57.280557][ T5023] do_syscall_64+0x41/0xc0 [ 57.284996][ T5023] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.290874][ T5023] RIP: 0033:0x7fa235171b10 [ 57.295271][ T5023] Code: ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 80 3d 91 a5 07 00 00 74 17 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c [ 57.314964][ T5023] RSP: 002b:00007fff4d804788 EFLAGS: 00000202 ORIG_RAX: 0000000000000003 [ 57.323429][ T5023] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fa235171b10 [ 57.331567][ T5023] RDX: 00007fa235172889 RSI: 0000000000000e0e RDI: 0000000000000005 [ 57.339539][ T5023] RBP: 00007fff4d8047a0 R08: 00007fff4d804800 R09: 00007fff4d804800 [ 57.347510][ T5023] R10: 00007fff4d804800 R11: 0000000000000202 R12: 00007fa2351e75f0 [ 57.355478][ T5023] R13: 00007fff4d804988 R14: 0000000000000001 R15: 0000000000000001 [ 57.363712][ T5023] [ 57.366715][ T5023] Modules linked in: [ 57.370829][ T5023] ---[ end trace 0000000000000000 ]--- [ 57.376408][ T5023] RIP: 0010:prepare_for_delete_or_cut+0x18f/0x2240 [ 57.382930][ T5023] Code: d8 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 0f b6 04 38 84 c0 0f 85 d0 17 00 00 4c 63 33 49 83 c4 28 4c 89 e0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 e7 e8 f2 af b2 ff 4d 8b 3c 24 48 b8 00 [ 57.402986][ T5023] RSP: 0018:ffffc90003c57320 EFLAGS: 00010206 [ 57.409229][ T5023] RAX: 0000000000000005 RBX: ffffc90003c57ae0 RCX: dffffc0000000000 [ 57.417407][ T5023] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000008 [ 57.425631][ T5023] RBP: ffffc90003c574a8 R08: ffffffff82361be2 R09: ffffc90003c57970 [ 57.433715][ T5023] R10: 0000000000000002 R11: ffff8880192a0000 R12: 0000000000000028 [ 57.441777][ T5023] R13: 0000000000000fcb R14: 0000000000000000 R15: dffffc0000000000 [ 57.450504][ T5023] FS: 0000555555d9c380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 57.459487][ T5023] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.466400][ T5023] CR2: 00007f269cfde2a9 CR3: 0000000074698000 CR4: 00000000003506f0 [ 57.474471][ T5023] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.482496][ T5023] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.490515][ T5023] Kernel panic - not syncing: Fatal exception [ 57.496795][ T5023] Kernel Offset: disabled [ 57.501125][ T5023] Rebooting in 86400 seconds..