Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.8' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 36.789124] Page cache invalidation failure on direct I/O. Possible data corruption due to collision with buffered I/O! [ 36.803444] File: /root/memory.events PID: 8111 Comm: syz-executor359 [ 36.817919] WARNING: CPU: 0 PID: 8116 at fs/ext4/inode.c:3942 ext4_set_page_dirty+0x2a4/0x370 [ 36.826710] Kernel panic - not syncing: panic_on_warn set ... [ 36.826710] [ 36.834102] CPU: 0 PID: 8116 Comm: syz-executor359 Not tainted 4.19.211-syzkaller #0 [ 36.842049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.851384] Call Trace: [ 36.853957] dump_stack+0x1fc/0x2ef [ 36.857570] panic+0x26a/0x50e [ 36.860758] ? __warn_printk+0xf3/0xf3 [ 36.864642] ? ext4_set_page_dirty+0x2a4/0x370 [ 36.869228] ? __probe_kernel_read+0x130/0x1b0 [ 36.873793] ? __warn.cold+0x5/0x5a [ 36.877404] ? __warn+0xe4/0x200 [ 36.880755] ? ext4_set_page_dirty+0x2a4/0x370 [ 36.885321] __warn.cold+0x20/0x5a [ 36.888952] ? ext4_set_page_dirty+0x2a4/0x370 [ 36.893530] report_bug+0x262/0x2b0 [ 36.897169] do_error_trap+0x1d7/0x310 [ 36.901045] ? math_error+0x310/0x310 [ 36.904860] ? reacquire_held_locks+0xb5/0x430 [ 36.909425] ? error_entry+0x72/0xd0 [ 36.913125] ? trace_hardirqs_off_caller+0x6e/0x210 [ 36.918126] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 36.923696] invalid_op+0x14/0x20 [ 36.927136] RIP: 0010:ext4_set_page_dirty+0x2a4/0x370 [ 36.932307] Code: ff e8 40 0f 84 ff 49 8d 5d ff e9 27 fe ff ff e8 32 0f 84 ff 48 c7 c6 e0 54 7a 88 48 89 ef e8 e3 a0 ab ff 0f 0b e8 1c 0f 84 ff <0f> 0b e9 77 ff ff ff e8 10 0f 84 ff 4c 8b 65 08 31 ff 4c 89 e3 83 [ 36.951193] RSP: 0018:ffff88809cb8fc10 EFLAGS: 00010293 [ 36.956997] RAX: ffff88809da281c0 RBX: 0000000000000000 RCX: ffffffff81de75ce [ 36.964247] RDX: 0000000000000000 RSI: ffffffff81de7654 RDI: 0000000000000001 [ 36.971528] RBP: ffffea00023abf40 R08: 0000000000000001 R09: 0000000000000000 [ 36.978788] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 36.986050] R13: ffffea000281ee48 R14: ffffea000281ee48 R15: 0000000000000004 [ 36.993313] ? ext4_set_page_dirty+0x21e/0x370 [ 36.998223] ? ext4_set_page_dirty+0x2a4/0x370 [ 37.002787] ? ext4_readpages+0x110/0x110 [ 37.006913] set_page_dirty+0x25f/0x640 [ 37.010879] set_page_dirty_lock+0x81/0xc0 [ 37.015095] xdp_umem_unpin_pages+0x10a/0x3a0 [ 37.019575] xdp_umem_create+0xb60/0xea0 [ 37.023626] xsk_setsockopt+0x491/0x5a0 [ 37.027582] ? xsk_sendmsg+0xfa0/0xfa0 [ 37.031450] ? aa_af_perm+0x230/0x230 [ 37.035240] __sys_setsockopt+0x14d/0x240 [ 37.039367] ? kernel_accept+0x310/0x310 [ 37.043411] ? up_read+0x17/0x110 [ 37.046851] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.052211] __x64_sys_setsockopt+0xba/0x150 [ 37.056608] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 37.061170] do_syscall_64+0xf9/0x620 [ 37.064979] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.070150] RIP: 0033:0x7f4db0a71db9 [ 37.073862] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 37.093024] RSP: 002b:00007f4db09e12f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 37.100715] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4db0a71db9 [ 37.107964] RDX: 0000000000000004 RSI: 000000000000011b RDI: 0000000000000006 [ 37.115224] RBP: 00007f4db0afa508 R08: 0000000000000020 R09: 0000000000000000 [ 37.122473] R10: 0000000020000040 R11: 0000000000000246 R12: 00007f4db0afa500 [ 37.129725] R13: 00007f4db0afa50c R14: 00007f4db0ac707c R15: 652e79726f6d656d [ 37.137439] Kernel Offset: disabled [ 37.141099] Rebooting in 86400 seconds..