device veth0_vlan entered promiscuous mode audit: type=1800 audit(1611462877.166:2): pid=9694 uid=0 auid=0 ses=8 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="file0" dev="loop0" ino=17 res=0 IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready ------------[ cut here ]------------ IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready kernel BUG at fs/ext4/inode.c:2824! IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready invalid opcode: 0000 [#1] PREEMPT SMP KASAN IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready Modules linked in: CPU: 1 PID: 9694 Comm: syz-executor.0 Not tainted 4.14.217-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888098708240 task.stack: ffff88809b920000 RIP: 0010:ext4_writepages+0x224e/0x2d40 fs/ext4/inode.c:2823 RSP: 0018:ffff88809b927630 EFLAGS: 00010247 RAX: 0000028410000000 RBX: 0000000000000001 RCX: 1ffff110130e1249 RDX: 1ffff110115e0ce2 RSI: 0000000000000000 RDI: ffff888098709248 RBP: ffff88809b927860 R08: 1ffff110130e1158 R09: 00000000000026f8 R10: ffff88809b9273d0 R11: ffff888098708240 R12: ffff8880992fa940 R13: 0000000000000000 R14: ffffed10115e0d78 R15: ffff88808af068b0 FS: 00007f131bee4700(0000) GS:ffff8880ba700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe6c8f47710 CR3: 000000009911d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0xba/0x220 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x213/0x2d0 mm/filemap.c:346 file_write_and_wait_range+0x77/0xd0 mm/filemap.c:678 __generic_file_fsync+0x67/0x1a0 fs/libfs.c:985 ext4_sync_file+0x938/0x1050 fs/ext4/fsync.c:118 vfs_fsync_range+0xe8/0x290 fs/sync.c:196 generic_write_sync include/linux/fs.h:2682 [inline] ext4_file_write_iter+0x316/0xe30 fs/ext4/file.c:281 call_write_iter include/linux/fs.h:1778 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x413/0x840 fs/read_write.c:482 vfs_write+0x150/0x4f0 fs/read_write.c:544 SYSC_write fs/read_write.c:590 [inline] SyS_write+0x100/0x250 fs/read_write.c:582 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x45e149 RSP: 002b:00007f131bee3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e149 RDX: 0000000000000082 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007fff2dabe0af R14: 00007f131bee49c0 R15: 000000000119bf8c Code: f9 97 87 4c 89 ef e8 02 1b 0b 00 58 44 8b 95 58 fe ff ff 41 be 01 00 00 00 c6 85 18 fe ff ff 01 45 31 ff 45 89 d5 e9 a2 ef ff ff <0f> 0b 48 8b 85 28 fe ff ff 44 8b 8d 64 ff ff ff 44 8b 85 60 ff RIP: ext4_writepages+0x224e/0x2d40 fs/ext4/inode.c:2823 RSP: ffff88809b927630 ---[ end trace 6ea5aedf2b00c391 ]--- IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready