loop2: detected capacity change from 0 to 128 divide error: 0000 [#1] PREEMPT SMP PTI CPU: 0 PID: 3874 Comm: syz.2.77 Not tainted 5.16.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:qnx6_mmi_fill_super+0xa6/0x2b0 fs/qnx6/super_mmi.c:68 Code: a0 11 2a 00 39 c5 0f 85 d4 00 00 00 45 85 e4 8b 43 28 8b 4b 34 89 cd 0f cd 0f 44 e9 89 c6 0f ce 0f 44 f0 b8 00 10 00 00 31 d2 f6 41 89 c4 4c 89 ef e8 fd f9 23 00 85 c0 0f 84 aa 00 00 00 4c RSP: 0018:ffffc900086b7d00 EFLAGS: 00010246 RAX: 0000000000001000 RBX: ffff8881197d8000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000003f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88810e40a000 R14: ffff88811291b5e8 R15: 0000000000000001 FS: 00007ff36a2846c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b5aba3b088 CR3: 000000010e4b4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: qnx6_fill_super+0x172/0x810 fs/qnx6/inode.c:325 mount_bdev+0x15c/0x1b0 fs/super.c:1370 legacy_get_tree+0x2b/0x50 fs/fs_context.c:610 vfs_get_tree+0x22/0x90 fs/super.c:1500 do_new_mount+0x153/0x3a0 fs/namespace.c:2988 do_mount fs/namespace.c:3331 [inline] __do_sys_mount fs/namespace.c:3539 [inline] __se_sys_mount+0x14b/0x1b0 fs/namespace.c:3516 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff36a825eba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff36a283e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ff36a283ef0 RCX: 00007ff36a825eba RDX: 0000000020009e00 RSI: 0000000020000080 RDI: 00007ff36a283eb0 RBP: 0000000020009e00 R08: 00007ff36a283ef0 R09: 000000000020c800 R10: 000000000020c800 R11: 0000000000000246 R12: 0000000020000080 R13: 00007ff36a283eb0 R14: 0000000000009e0d R15: 0000000020000040 Modules linked in: ---[ end trace 1a7baf9ec84ac953 ]--- RIP: 0010:qnx6_mmi_fill_super+0xa6/0x2b0 fs/qnx6/super_mmi.c:68 Code: a0 11 2a 00 39 c5 0f 85 d4 00 00 00 45 85 e4 8b 43 28 8b 4b 34 89 cd 0f cd 0f 44 e9 89 c6 0f ce 0f 44 f0 b8 00 10 00 00 31 d2 f6 41 89 c4 4c 89 ef e8 fd f9 23 00 85 c0 0f 84 aa 00 00 00 4c RSP: 0018:ffffc900086b7d00 EFLAGS: 00010246 RAX: 0000000000001000 RBX: ffff8881197d8000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000003f R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88810e40a000 R14: ffff88811291b5e8 R15: 0000000000000001 FS: 00007ff36a2846c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff361ea3000 CR3: 000000010e4b4000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: a0 11 2a 00 39 c5 0f movabs 0xd4850fc539002a11,%al 7: 85 d4 9: 00 00 add %al,(%rax) b: 00 45 85 add %al,-0x7b(%rbp) e: e4 8b in $0x8b,%al 10: 43 28 8b 4b 34 89 cd rex.XB sub %cl,-0x3276cbb5(%r11) 17: 0f cd bswap %ebp 19: 0f 44 e9 cmove %ecx,%ebp 1c: 89 c6 mov %eax,%esi 1e: 0f ce bswap %esi 20: 0f 44 f0 cmove %eax,%esi 23: b8 00 10 00 00 mov $0x1000,%eax 28: 31 d2 xor %edx,%edx * 2a: f7 f6 div %esi <-- trapping instruction 2c: 41 89 c4 mov %eax,%r12d 2f: 4c 89 ef mov %r13,%rdi 32: e8 fd f9 23 00 call 0x23fa34 37: 85 c0 test %eax,%eax 39: 0f 84 aa 00 00 00 je 0xe9 3f: 4c rex.WR