./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4039011114 <...> [ 15.885221][ T28] audit: type=1400 audit(1732533347.569:61): avc: denied { transition } for pid=228 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.893002][ T28] audit: type=1400 audit(1732533347.569:62): avc: denied { noatsecure } for pid=228 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.899729][ T28] audit: type=1400 audit(1732533347.569:63): avc: denied { write } for pid=228 comm="sh" path="pipe:[14821]" dev="pipefs" ino=14821 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 15.908710][ T28] audit: type=1400 audit(1732533347.569:64): avc: denied { rlimitinh } for pid=228 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.927310][ T28] audit: type=1400 audit(1732533347.569:65): avc: denied { siginh } for pid=228 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.20' (ED25519) to the list of known hosts. execve("./syz-executor4039011114", ["./syz-executor4039011114"], 0x7ffe2135a0c0 /* 10 vars */) = 0 brk(NULL) = 0x55557f2ef000 brk(0x55557f2efd00) = 0x55557f2efd00 arch_prctl(ARCH_SET_FS, 0x55557f2ef380) = 0 set_tid_address(0x55557f2ef650) = 298 set_robust_list(0x55557f2ef660, 24) = 0 rseq(0x55557f2efca0, 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-executor4039011114", 4096) = 28 getrandom("\x63\x29\x38\xa3\x35\x91\xc3\x1d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557f2efd00 brk(0x55557f310d00) = 0x55557f310d00 brk(0x55557f311000) = 0x55557f311000 mprotect(0x7f491ae33000, 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) = 0x7f491297e000 [ 25.829644][ T28] audit: type=1400 audit(1732533357.519:66): avc: denied { execmem } for pid=298 comm="syz-executor403" 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(0x7f491297e000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 25.947943][ T28] audit: type=1400 audit(1732533357.639:67): avc: denied { read write } for pid=298 comm="syz-executor403" 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 [ 25.948434][ T298] loop0: detected capacity change from 0 to 40427 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file0", 0777) = 0 [ 25.972216][ T28] audit: type=1400 audit(1732533357.639:68): avc: denied { open } for pid=298 comm="syz-executor403" 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 [ 25.986465][ T298] F2FS-fs (loop0): Small segment_count (20 < 1 * 24) [ 26.005474][ T28] audit: type=1400 audit(1732533357.639:69): avc: denied { ioctl } for pid=298 comm="syz-executor403" 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 [ 26.009183][ T298] F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock [ 26.034246][ T28] audit: type=1400 audit(1732533357.669:70): avc: denied { mounton } for pid=298 comm="syz-executor403" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 26.042691][ T298] F2FS-fs (loop0): heap/no_heap options were deprecated [ 26.071563][ T298] ================================================================================ [ 26.080704][ T298] UBSAN: shift-out-of-bounds in fs/f2fs/super.c:919:5 [ 26.087315][ T298] shift exponent 112 is too large for 64-bit type 'unsigned long' [ 26.094906][ T298] CPU: 0 PID: 298 Comm: syz-executor403 Not tainted 6.1.112-syzkaller-00034-g226e9f92a06c #0 [ 26.104876][ T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 26.114782][ T298] Call Trace: [ 26.117897][ T298] [ 26.120675][ T298] dump_stack_lvl+0x151/0x1b7 [ 26.125185][ T298] ? nf_tcp_handle_invalid+0x3f1/0x3f1 [ 26.130480][ T298] ? match_int+0x189/0x1f0 [ 26.134735][ T298] dump_stack+0x15/0x1e [ 26.138725][ T298] __ubsan_handle_shift_out_of_bounds+0x3e1/0x440 [ 26.144979][ T298] parse_options+0x4b19/0x4b30 [ 26.149574][ T298] ? mount_bdev+0x282/0x3b0 [ 26.153913][ T298] ? f2fs_mount+0x34/0x40 [ 26.158086][ T298] ? default_options+0xc60/0xc60 [ 26.162859][ T298] ? kstrdup+0x54/0x70 [ 26.166773][ T298] ? memcpy+0x56/0x70 [ 26.170580][ T298] f2fs_fill_super+0x23bc/0x6dc0 [ 26.175362][ T298] ? kill_f2fs_super+0x3c0/0x3c0 [ 26.180128][ T298] ? set_blocksize+0x1cb/0x360 [ 26.184728][ T298] ? sb_set_blocksize+0xa8/0xf0 [ 26.189423][ T298] mount_bdev+0x282/0x3b0 [ 26.193584][ T298] ? kill_f2fs_super+0x3c0/0x3c0 [ 26.198359][ T298] f2fs_mount+0x34/0x40 [ 26.202346][ T298] legacy_get_tree+0xf1/0x190 [ 26.206858][ T298] ? trace_raw_output_f2fs__rw_end+0x110/0x110 [ 26.212849][ T298] vfs_get_tree+0x88/0x290 [ 26.217102][ T298] do_new_mount+0x2ba/0xb30 [ 26.221443][ T298] ? do_move_mount_old+0x160/0x160 [ 26.226402][ T298] ? security_capable+0x87/0xb0 [ 26.231074][ T298] ? ns_capable+0x89/0xe0 [ 26.235242][ T298] path_mount+0x671/0x1070 [ 26.239493][ T298] ? user_path_at_empty+0x14e/0x1a0 [ 26.244529][ T298] __se_sys_mount+0x2c4/0x3b0 [ 26.249043][ T298] ? __x64_sys_mount+0xd0/0xd0 [ 26.253639][ T298] ? fpregs_restore_userregs+0x130/0x290 [ 26.259110][ T298] __x64_sys_mount+0xbf/0xd0 [ 26.263534][ T298] x64_sys_call+0x49d/0x9a0 [ 26.267875][ T298] do_syscall_64+0x3b/0xb0 [ 26.272128][ T298] ? clear_bhb_loop+0x55/0xb0 [ 26.276641][ T298] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 26.282368][ T298] RIP: 0033:0x7f491adbcd7a [ 26.286622][ T298] 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 [ 26.306064][ T298] RSP: 002b:00007ffc8278fb28 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 26.314309][ T298] RAX: ffffffffffffffda RBX: 00007ffc8278fb40 RCX: 00007f491adbcd7a [ 26.322122][ T298] RDX: 0000000020000280 RSI: 00000000200000c0 RDI: 00007ffc8278fb40 [ 26.329931][ T298] RBP: 0000000000000004 R08: 00007ffc8278fb80 R09: 002c747079726365 [ 26.337743][ T298] R10: 0000000000004000 R11: 0000000000000286 R12: 0000000000004000 mount("/dev/loop0", "./file0", "f2fs", MS_REC, "nobarrier,age_extent_cache,alloc_mode=default,noinline_data,noflush_merge,disable_roll_forward,acl,n"...) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [ 26.345554][ T298] R13: 00007ffc8278fb80 R14: 0000000000000003 R15: 00000000013bd7ef [ 26.353371][ T298] [ 26.356325][ T298] ================================================================================ [ 26.365354][ T298] F2FS-fs (loop0): Not support 281474976710656, larger than 256 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 exit_group(0) = ? +++ exited with 0 +++