------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2609! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 31671 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mpage_prepare_extent_to_map+0xb42/0xe20 fs/ext4/inode.c:2609 Code: 89 ef e8 81 1d 9d ff 0f 0b e8 aa 1a 6c ff 48 8d 6b ff e9 ff fb ff ff e8 9c 1a 6c ff 48 8d 5d ff e9 4b fc ff ff e8 8e 1a 6c ff <0f> 0b e8 87 1a 6c ff 48 c7 c6 80 1d 7f 89 4c 89 ef e8 48 1d 9d ff RSP: 0000:ffffc90009e6ee90 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000008000 RCX: ffffc9000f399000 RDX: 0000000000040000 RSI: ffffffff820602f2 RDI: 0000000000000003 RBP: ffffea0000c5a708 R08: 0000000000000000 R09: ffffea00010766c7 R10: ffffffff8205ff6f R11: 0000000000000000 R12: dffffc0000000000 R13: ffffea00010766c0 R14: ffffc90009e6f220 R15: 0000000000000000 FS: 00007fd5d81fb700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff9486b7000 CR3: 0000000018650000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_writepages+0x959/0x3da0 fs/ext4/inode.c:2746 do_writepages+0xec/0x290 mm/page-writeback.c:2352 __filemap_fdatawrite_range+0x2a5/0x390 mm/filemap.c:422 file_write_and_wait_range+0x169/0x200 mm/filemap.c:761 ext4_sync_file+0x21f/0xf50 fs/ext4/fsync.c:151 vfs_fsync_range+0x13a/0x220 fs/sync.c:200 generic_write_sync include/linux/fs.h:2737 [inline] ext4_buffered_write_iter+0x36a/0x4d0 fs/ext4/file.c:278 ext4_file_write_iter+0x493/0x1700 fs/ext4/file.c:664 call_write_iter include/linux/fs.h:1901 [inline] do_iter_readv_writev+0x46f/0x740 fs/read_write.c:740 do_iter_write+0x188/0x670 fs/read_write.c:866 vfs_iter_write+0x70/0xa0 fs/read_write.c:907 iter_file_splice_write+0x77f/0xc40 fs/splice.c:686 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0x110/0x180 fs/splice.c:933 splice_direct_to_actor+0x38c/0x980 fs/splice.c:888 do_splice_direct+0x1b3/0x280 fs/splice.c:976 do_sendfile+0x561/0x10b0 fs/read_write.c:1257 __do_sys_sendfile64 fs/read_write.c:1318 [inline] __se_sys_sendfile64 fs/read_write.c:1304 [inline] __x64_sys_sendfile64+0x1cc/0x210 fs/read_write.c:1304 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e149 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd5d81fac68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045e149 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004 RBP: 000000000119bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0008000000000005 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007ffe5f24edcf R14: 00007fd5d81fb9c0 R15: 000000000119bf8c Modules linked in: ---[ end trace 5849ade9439e122e ]--- RIP: 0010:mpage_prepare_extent_to_map+0xb42/0xe20 fs/ext4/inode.c:2609 Code: 89 ef e8 81 1d 9d ff 0f 0b e8 aa 1a 6c ff 48 8d 6b ff e9 ff fb ff ff e8 9c 1a 6c ff 48 8d 5d ff e9 4b fc ff ff e8 8e 1a 6c ff <0f> 0b e8 87 1a 6c ff 48 c7 c6 80 1d 7f 89 4c 89 ef e8 48 1d 9d ff RSP: 0000:ffffc90009e6ee90 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000008000 RCX: ffffc9000f399000 RDX: 0000000000040000 RSI: ffffffff820602f2 RDI: 0000000000000003 RBP: ffffea0000c5a708 R08: 0000000000000000 R09: ffffea00010766c7 R10: ffffffff8205ff6f R11: 0000000000000000 R12: dffffc0000000000 R13: ffffea00010766c0 R14: ffffc90009e6f220 R15: 0000000000000000 FS: 00007fd5d81fb700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000018650000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400