./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2022473705 <...> Warning: Permanently added '10.128.0.197' (ED25519) to the list of known hosts. execve("./syz-executor2022473705", ["./syz-executor2022473705"], 0x7ffff0030dc0 /* 10 vars */) = 0 brk(NULL) = 0x55555646f000 brk(0x55555646fd00) = 0x55555646fd00 arch_prctl(ARCH_SET_FS, 0x55555646f380) = 0 set_tid_address(0x55555646f650) = 292 set_robust_list(0x55555646f660, 24) = 0 rseq(0x55555646fca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2022473705", 4096) = 28 getrandom("\xf9\x85\x47\xc3\x10\xf8\xf8\x81", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555646fd00 brk(0x555556490d00) = 0x555556490d00 brk(0x555556491000) = 0x555556491000 mprotect(0x7fd7f11ba000, 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 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) = 0x7fd7e8d05000 [ 20.461767][ T28] audit: type=1400 audit(1723885439.928:66): avc: denied { execmem } for pid=292 comm="syz-executor202" 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"..., 20699119) = 20699119 munmap(0x7fd7e8d05000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file2", 0777) = 0 [ 20.534462][ T28] audit: type=1400 audit(1723885439.998:67): avc: denied { read write } for pid=292 comm="syz-executor202" name="loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 20.535201][ T292] loop0: detected capacity change from 0 to 40427 [ 20.558585][ T28] audit: type=1400 audit(1723885439.998:68): avc: denied { open } for pid=292 comm="syz-executor202" path="/dev/loop0" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 20.568279][ T292] ================================================================================ [ 20.595954][ T28] audit: type=1400 audit(1723885439.998:69): avc: denied { ioctl } for pid=292 comm="syz-executor202" path="/dev/loop0" dev="devtmpfs" ino=114 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 20.598195][ T292] UBSAN: shift-out-of-bounds in fs/f2fs/super.c:911:5 [ 20.629729][ T28] audit: type=1400 audit(1723885440.038:70): avc: denied { mounton } for pid=292 comm="syz-executor202" path="/root/file2" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 20.630163][ T292] shift exponent 105 is too large for 64-bit type 'unsigned long' [ 20.660323][ T292] CPU: 1 PID: 292 Comm: syz-executor202 Not tainted 6.1.90-syzkaller-00020-gd6a513a78492 #0 [ 20.670119][ T292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 20.680019][ T292] Call Trace: [ 20.683146][ T292] [ 20.685916][ T292] dump_stack_lvl+0x151/0x1b7 [ 20.690428][ T292] ? nf_tcp_handle_invalid+0x3f1/0x3f1 [ 20.695721][ T292] dump_stack+0x15/0x1c [ 20.699714][ T292] __ubsan_handle_shift_out_of_bounds+0x3e1/0x440 [ 20.705966][ T292] parse_options+0x4b90/0x4ba0 [ 20.710564][ T292] ? mount_bdev+0x282/0x3b0 [ 20.714908][ T292] ? f2fs_mount+0x34/0x40 [ 20.719078][ T292] ? default_options+0xc80/0xc80 [ 20.723853][ T292] ? kstrdup+0x54/0x70 [ 20.727856][ T292] ? memcpy+0x56/0x70 [ 20.731784][ T292] f2fs_fill_super+0x23bc/0x6dc0 [ 20.736564][ T292] ? kill_f2fs_super+0x3c0/0x3c0 [ 20.741512][ T292] ? set_blocksize+0x1cb/0x360 [ 20.746102][ T292] ? sb_set_blocksize+0xa8/0xf0 [ 20.750878][ T292] mount_bdev+0x282/0x3b0 [ 20.755042][ T292] ? kill_f2fs_super+0x3c0/0x3c0 [ 20.759817][ T292] f2fs_mount+0x34/0x40 [ 20.763895][ T292] legacy_get_tree+0xf1/0x190 [ 20.768443][ T292] ? trace_raw_output_f2fs__rw_end+0x110/0x110 [ 20.774399][ T292] vfs_get_tree+0x88/0x290 [ 20.778655][ T292] do_new_mount+0x2ba/0xb30 [ 20.783088][ T292] ? do_move_mount_old+0x160/0x160 [ 20.788024][ T292] ? security_capable+0x87/0xb0 [ 20.792711][ T292] ? ns_capable+0x89/0xe0 [ 20.796877][ T292] path_mount+0x671/0x1070 [ 20.801135][ T292] ? user_path_at_empty+0x14e/0x1a0 [ 20.806267][ T292] __se_sys_mount+0x2c4/0x3b0 [ 20.810767][ T292] ? __x64_sys_mount+0xd0/0xd0 [ 20.815383][ T292] ? fpregs_restore_userregs+0x130/0x290 [ 20.820833][ T292] __x64_sys_mount+0xbf/0xd0 [ 20.825274][ T292] x64_sys_call+0x49d/0x9a0 [ 20.829607][ T292] do_syscall_64+0x3b/0xb0 [ 20.833849][ T292] ? clear_bhb_loop+0x55/0xb0 [ 20.838372][ T292] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 20.844346][ T292] RIP: 0033:0x7fd7f1143cfa [ 20.848519][ T292] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 20.867973][ T292] RSP: 002b:00007ffc8943f878 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 20.876214][ T292] RAX: ffffffffffffffda RBX: 00007ffc8943f890 RCX: 00007fd7f1143cfa mount("/dev/loop0", "./file2", "f2fs", 0, "nouser_xattr,active_logs=4,active_logs=4,noquota,noflush_merge,io_bits=00000000000000000151,prjjquot"...) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 20.884191][ T292] RDX: 0000000020000040 RSI: 00000000200000c0 RDI: 00007ffc8943f890 [ 20.892351][ T292] RBP: 0000000000000004 R08: 00007ffc8943f8d0 R09: 00000000000054fa [ 20.900166][ T292] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 [ 20.907979][ T292] R13: 00007ffc8943f8d0 R14: 0000000000000003 R15: 00000000013bd7ef [ 20.915788][ T292] [ 20.918774][ T292] ================================================================================ [ 20.927784][ T292] F2FS-fs (loop0): Not support 2199023255552, larger than 256 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 exit_group(0) = ? +++ exited with 0 +++