./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2677683545 <...> Warning: Permanently added '10.128.0.160' (ED25519) to the list of known hosts. execve("./syz-executor2677683545", ["./syz-executor2677683545"], 0x7ffd07f06990 /* 10 vars */) = 0 brk(NULL) = 0x555556c1e000 brk(0x555556c1ed00) = 0x555556c1ed00 arch_prctl(ARCH_SET_FS, 0x555556c1e380) = 0 set_tid_address(0x555556c1e650) = 5037 set_robust_list(0x555556c1e660, 24) = 0 rseq(0x555556c1eca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2677683545", 4096) = 28 getrandom("\x4f\xec\x51\xe1\xdc\x9f\xb7\x47", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556c1ed00 brk(0x555556c3fd00) = 0x555556c3fd00 brk(0x555556c40000) = 0x555556c40000 mprotect(0x7fce402f7000, 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 [ 77.635484][ T27] audit: type=1400 audit(1695066940.349:83): avc: denied { write } for pid=5034 comm="strace-static-x" path="pipe:[2934]" dev="pipefs" ino=2934 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 77.665135][ T5037] syz-executor267[5037]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fce37e41000 [ 77.665395][ T27] audit: type=1400 audit(1695066940.379:84): avc: denied { execmem } for pid=5037 comm="syz-executor267" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 munmap(0x7fce37e41000, 16777216) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 mount("/dev/loop0", "./file0", "jfs", 0, "nodiscard,errors=continue,iocharset=cp1251,") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 77.856758][ T27] audit: type=1400 audit(1695066940.569:85): avc: denied { read write } for pid=5037 comm="syz-executor267" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 77.859812][ T5037] loop0: detected capacity change from 0 to 32768 chdir("./file0") = 0 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 [ 77.882049][ T27] audit: type=1400 audit(1695066940.569:86): avc: denied { open } for pid=5037 comm="syz-executor267" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 77.913349][ T27] audit: type=1400 audit(1695066940.569:87): avc: denied { ioctl } for pid=5037 comm="syz-executor267" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 openat(AT_FDCWD, ".", O_RDONLY) = 4 [ 77.940006][ T27] audit: type=1400 audit(1695066940.609:88): avc: denied { mounton } for pid=5037 comm="syz-executor267" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 77.962965][ T27] audit: type=1400 audit(1695066940.619:89): avc: denied { mount } for pid=5037 comm="syz-executor267" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 77.964827][ T5037] ================================================================================ [ 77.995633][ T5037] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:2887:37 [ 78.004107][ T5037] index -28 is out of range for type 'dtslot [128]' [ 78.010958][ T5037] CPU: 0 PID: 5037 Comm: syz-executor267 Not tainted 6.6.0-rc2-syzkaller #0 [ 78.019655][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 78.029730][ T5037] Call Trace: [ 78.033029][ T5037] [ 78.035976][ T5037] dump_stack_lvl+0x125/0x1b0 [ 78.040691][ T5037] __ubsan_handle_out_of_bounds+0x111/0x150 [ 78.046610][ T5037] jfs_readdir+0x37a2/0x4320 [ 78.051222][ T5037] ? dtDelete+0x33e0/0x33e0 [ 78.055721][ T5037] ? down_write+0x14f/0x200 [ 78.060214][ T5037] ? rwsem_down_write_slowpath+0x12a0/0x12a0 [ 78.066184][ T5037] ? down_read+0x470/0x470 [ 78.070597][ T5037] ? dtDelete+0x33e0/0x33e0 [ 78.075103][ T5037] wrap_directory_iterator+0xa5/0xe0 [ 78.080384][ T5037] iterate_dir+0x1e5/0x5f0 [ 78.084796][ T5037] __x64_sys_getdents64+0x14f/0x2e0 [ 78.089991][ T5037] ? __ia32_sys_getdents+0x2d0/0x2d0 [ 78.095270][ T5037] ? fillonedir+0x400/0x400 [ 78.099762][ T5037] ? lockdep_hardirqs_on+0x7d/0x100 [ 78.104952][ T5037] ? _raw_spin_unlock_irq+0x2e/0x50 [ 78.110141][ T5037] ? ptrace_notify+0xf4/0x130 [ 78.114803][ T5037] do_syscall_64+0x38/0xb0 [ 78.119217][ T5037] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 78.125099][ T5037] RIP: 0033:0x7fce4027e679 [ 78.129497][ T5037] 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 [ 78.149095][ T5037] RSP: 002b:00007ffddcc369e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 [ 78.157494][ T5037] RAX: ffffffffffffffda RBX: 00007ffddcc36bb8 RCX: 00007fce4027e679 [ 78.165451][ T5037] RDX: 00000000000000c5 RSI: 0000000020000200 RDI: 0000000000000004 [ 78.173409][ T5037] RBP: 00007fce402f7610 R08: 0000000000000000 R09: 00007ffddcc36bb8 [ 78.181364][ T5037] R10: 002c313532317063 R11: 0000000000000246 R12: 0000000000000001 [ 78.189334][ T5037] R13: 00007ffddcc36ba8 R14: 0000000000000001 R15: 0000000000000001 [ 78.197294][ T5037] [ 78.200701][ T5037] ================================================================================ [ 78.210095][ T5037] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 78.217284][ T5037] CPU: 1 PID: 5037 Comm: syz-executor267 Not tainted 6.6.0-rc2-syzkaller #0 [ 78.225943][ T5037] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 78.235982][ T5037] Call Trace: [ 78.239248][ T5037] [ 78.242167][ T5037] dump_stack_lvl+0xd9/0x1b0 [ 78.246747][ T5037] panic+0x6a6/0x750 [ 78.250633][ T5037] ? panic_smp_self_stop+0xa0/0xa0 [ 78.255729][ T5037] ? syslog_print_all+0x3f0/0x3f0 [ 78.260761][ T5037] check_panic_on_warn+0xab/0xb0 [ 78.265707][ T5037] __ubsan_handle_out_of_bounds+0x139/0x150 [ 78.271604][ T5037] jfs_readdir+0x37a2/0x4320 [ 78.276206][ T5037] ? dtDelete+0x33e0/0x33e0 [ 78.280724][ T5037] ? down_write+0x14f/0x200 [ 78.285220][ T5037] ? rwsem_down_write_slowpath+0x12a0/0x12a0 [ 78.291188][ T5037] ? down_read+0x470/0x470 [ 78.295591][ T5037] ? dtDelete+0x33e0/0x33e0 [ 78.300085][ T5037] wrap_directory_iterator+0xa5/0xe0 [ 78.305358][ T5037] iterate_dir+0x1e5/0x5f0 [ 78.309767][ T5037] __x64_sys_getdents64+0x14f/0x2e0 [ 78.314954][ T5037] ? __ia32_sys_getdents+0x2d0/0x2d0 [ 78.320233][ T5037] ? fillonedir+0x400/0x400 [ 78.324770][ T5037] ? lockdep_hardirqs_on+0x7d/0x100 [ 78.329987][ T5037] ? _raw_spin_unlock_irq+0x2e/0x50 [ 78.335196][ T5037] ? ptrace_notify+0xf4/0x130 [ 78.339876][ T5037] do_syscall_64+0x38/0xb0 [ 78.344294][ T5037] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 78.350192][ T5037] RIP: 0033:0x7fce4027e679 [ 78.354601][ T5037] 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 [ 78.374295][ T5037] RSP: 002b:00007ffddcc369e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 [ 78.382710][ T5037] RAX: ffffffffffffffda RBX: 00007ffddcc36bb8 RCX: 00007fce4027e679 [ 78.390679][ T5037] RDX: 00000000000000c5 RSI: 0000000020000200 RDI: 0000000000000004 [ 78.398645][ T5037] RBP: 00007fce402f7610 R08: 0000000000000000 R09: 00007ffddcc36bb8 [ 78.406621][ T5037] R10: 002c313532317063 R11: 0000000000000246 R12: 0000000000000001 [ 78.414588][ T5037] R13: 00007ffddcc36ba8 R14: 0000000000000001 R15: 0000000000000001 [ 78.422564][ T5037] [ 78.425759][ T5037] Kernel Offset: disabled [ 78.430149][ T5037] Rebooting in 86400 seconds..