------------[ cut here ]------------ kernel BUG at fs/ext4/inline.c:757! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 12225 Comm: syz-executor123 Not tainted 4.14.269-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809158c340 task.stack: ffff8880883c0000 RIP: 0010:ext4_write_inline_data_end+0x368/0x490 fs/ext4/inline.c:757 RSP: 0018:ffff8880883c7930 EFLAGS: 00010297 RAX: ffff88809158c340 RBX: 1ffff11011078f2a RCX: 0000000000005289 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808b5e9190 RBP: ffff88808b5e9330 R08: ffffffff8b9cbf08 R09: 000000000004040f R10: ffff88809158cc40 R11: ffff88809158c340 R12: ffffea00022e0640 R13: 00000000000000a0 R14: ffff8880883c7970 R15: ffff88808b5e9198 FS: 00007fa895784700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa895763718 CR3: 000000008f4cf000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_write_end+0x18d/0xca0 fs/ext4/inode.c:1422 ext4_da_write_end+0x6da/0x8e0 fs/ext4/inode.c:3177 generic_perform_write+0x268/0x420 mm/filemap.c:3066 __generic_file_write_iter+0x227/0x590 mm/filemap.c:3180 ext4_file_write_iter+0x276/0xd20 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1780 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x44c/0x630 fs/read_write.c:482 vfs_write+0x17f/0x4d0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0xf2/0x210 fs/read_write.c:582 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fa8957d7e19 RSP: 002b:00007fa8957842f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fa89585d4c0 RCX: 00007fa8957d7e19 RDX: 00000000000000a0 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007fa89582a0bc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa8958290b8 R13: 0030656c69662f2e R14: e5d26e84aa4cf3c6 R15: 00007fa89585d4c8 Code: 3c 02 00 0f 85 29 01 00 00 48 8b 7d 28 44 89 f9 ba ef 02 00 00 45 31 e4 48 c7 c6 20 1d 98 87 e8 cf 9b 0c 00 eb 8d e8 68 f0 9b ff <0f> 0b e8 61 f0 9b ff 49 8d 7c 24 20 48 89 f8 48 c1 e8 03 42 80 RIP: ext4_write_inline_data_end+0x368/0x490 fs/ext4/inline.c:757 RSP: ffff8880883c7930 ---[ end trace 30a65d98f64300c6 ]---