erofs: read_super, device -> /dev/loop2 erofs: options -> noaclnouser_xattr,user-@tr, ================================================================================ UBSAN: Undefined behaviour in drivers/staging/erofs/super.c:122:3 shift exponent 232 is too large for 32-bit type 'int' CPU: 0 PID: 12604 Comm: syz-executor.2 Not tainted 4.19.150-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422 superblock_read drivers/staging/erofs/super.c:122 [inline] erofs_read_super drivers/staging/erofs/super.c:356 [inline] erofs_fill_super+0x397/0x12fc drivers/staging/erofs/super.c:499 mount_bdev+0x2fc/0x3b0 fs/super.c:1158 erofs_mount+0x8c/0xc0 drivers/staging/erofs/super.c:512 mount_fs+0xa3/0x318 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x51c/0x2f10 fs/namespace.c:2799 ksys_mount+0xcf/0x130 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3026 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x46087a Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 ad 89 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 8a 89 fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007fd678b2ca88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fd678b2cb20 RCX: 000000000046087a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fd678b2cae0 RBP: 00007fd678b2cae0 R08: 00007fd678b2cb20 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020000040 ================================================================================ erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: noacl. erofs: unmounted for /dev/loop1 erofs: blksize 256 isn't supported on this platform erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,noacl,user_xattr, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop2 erofs: options -> ,z(#}}user_xatpr,user_xattr, erofs: cannot find valid erofs superblock erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,yuser_xattr,user_xat~tsQ]in@T$yVeslXg!iGZ\.X]Y<70_j( erofs: Unrecognized mount option "yuser_xattr" or missing value erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop2 erofs: options -> noacl3nouser_xattr,user_xattr, erofs: Unrecognized mount option "noacl3nouser_xattr" or missing value erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattrr_xattrR erofs: Unrecognized mount option "nouser_xattrr_xattrR" or missing value JFS: discard option not supported on device erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,userue_x]YN 4-Fattr, erofs: Unrecognized mount option "userue_x]YN 4-Fattr" or missing value erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: noacl. erofs: unmounted for /dev/loop1 erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,fault_injection=0x0000000000000001, erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: noacl. erofs: unidentified requirements 4a7bc69, please upgrade kernel version erofs: unmounted for /dev/loop1 erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nozser_ser_xattr, erofs: Unrecognized mount option "nozser_ser_xattr" or missing value erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,Zser_Ntdr, erofs: Unrecognized mount option "Zser_Ntdr" or missing value erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nou(Wđ?"Pser_xattr,us erofs: Unrecognized mount option "nou(Wđ?"Pser_xattr" or missing value erofs: read_super, device -> /dev/loop2 erofs: options -> measure,subj_user=erofs erofs: cannot read erofs superblock erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop2 erofs: read_super, device -> /dev/loop1 erofs: options -> nƯYoacl,nouser_xatr,user_xattr, erofs: options -> nouser_xattr,nouser_xattr,user_xattr, erofs: Unrecognized mount option "nƯYoacl" or missing value erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop2 erofs: options -> user_xattr,nous #iDɠ @Tv7,us erofs: Unrecognized mount option "nous #iDɠ @Tv7" or missing value erofs: read_super, device -> /dev/loop2 erofs: options -> erofs: root inode @ nid 36 affs: Unrecognized mount option " " or missing value affs: Error parsing options erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,nouser_xattr, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xa|tr, erofs: cannot find valid erofs superblock erofs: read_super, device -> /dev/loop1 erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,acl,user_xattr, erofs: options -> nouser_xattr,nouser_xattr,user_xattr, erofs: cannot find valid erofs superblock erofs: cannot find valid erofs superblock erofs: read_super, device -> /dev/loop2 erofs: options -> nottr,uattp, erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: Unrecognized mount option "nottr" or missing value erofs: mounted on /dev/loop1 with opts: noacl. erofs: unmounted for /dev/loop1 erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: noacl. erofs: read_super, device -> /dev/loop2 erofs: unmounted for /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop2 erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,noser_xattr, erofs: options -> noacl,acl,user_xattr,fault_injection=0x0000000000000007,fault_injection=0xffffffffffff3544,user_xattr,acl,nouser_xattr,fault_injection=0x0000000000000dc2,noacl,noacl,nouser_xattr,appraise,fo erofs: Unrecognized mount option "noser_xattr" or missing value erofs: cannot read erofs superblock erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,noqser_xattr,user_xattr, erofs: read_super, device -> /dev/loop1 erofs: Unrecognized mount option "noqser_xattr" or missing value erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: noacl. erofs: unmounted for /dev/loop1 erofs: read_super, device -> /dev/loop2 erofs: read_super, device -> /dev/loop1 erofs: options -> usersoal,user_xattr, erofs: options -> noacl,fault_injection=0x0000000000000001,f0x0000000000000 erofs: cannot find valid erofs superblock erofs: blksize 1 isn't supported on this platform erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,acl, erofs: root inode @ nid 36 hpfs: bad mount options. erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: read_super, device -> /dev/loop2 erofs: root inode @ nid 36 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: mounted on /dev/loop1 with opts: noacl. erofs: root inode @ nid 36 erofs: unmounted for /dev/loop1 erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,user_xattr,noacl, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,noIm`Guser_xattr, erofs: cannot read erofs superblock erofs: read_super, device -> /dev/loop1 erofs: options -> 0xffffffffffffffff erofs: cannot find valid erofs superblock erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: read_super, device -> /dev/loop1 erofs: cannot read erofs superblock erofs: options -> noAcl,nouser_xatser_xattr, erofs: Unrecognized mount option "noAcl" or missing value erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: read_super, device -> /dev/loop1 erofs: root inode @ nid 36 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: noacl. erofs: unmounted for /dev/loop1 erofs: read_super, device -> /dev/loop2 erofs: options -> noajl4,nouser_xatrV孅8f,user_cttr, erofs: Unrecognized mount option "noajl4" or missing value erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: read_super, device -> /dev/loop1 erofs: options -> nouser_xattr,nouser_xattr,nouser_xattr, erofs: root inode @ nid 36 erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: nouser_xattr. erofs: unmounted for /dev/loop1 erofs: read_super, device -> /dev/loop2 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: read_super, device -> /dev/loop2 erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nouser_xattr,user_xattr, erofs: options -> noacl,nouser_xattr,user_xattr, erofs: root inode @ nid 36 erofs: root inode @ nid 36 erofs: mounted on /dev/loop1 with opts: noacl. erofs: unmounted for /dev/loop1 erofs: read_super, device -> /dev/loop1 erofs: options -> noacl,nousdtNuF: oXr_xa erofs: Unrecognized mount option "nousdtNuF: oXr_xa" or missing value erofs: read_super, device -> /dev/loop1 erofs: options -> fault_injectiot=0x00000000000001ab,nouser_xattr,user_xuttr,smackfsdef=, erofs: Unrecognized mount option "fault_injectiot=0x00000000000001ab" or missing value erofs: read_super, device -> /dev/loop1 erofs: read_super, device -> /dev/loop2 erofs: options -> noacluser_xattr, erofs: Unrecognized mount option "noacluser_xattr" or missing value