Warning: Permanently added '10.128.0.218' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 36.278218] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 36.290211] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue [ 36.308591] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue [ 36.323932] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue [ 36.336111] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue [ 36.353411] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue executing program executing program executing program executing program executing program executing program [ 36.667619] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue [ 36.693862] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 36.696836] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue [ 36.715295] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue [ 36.733205] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue [ 36.745539] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue executing program [ 36.817223] ------------[ cut here ]------------ [ 36.822187] kernel BUG at fs/buffer.c:2040! [ 36.829263] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 36.834725] CPU: 0 PID: 8166 Comm: syz-executor544 Not tainted 4.19.189-syzkaller #0 [ 36.842593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.851972] RIP: 0010:__block_commit_write.constprop.0.isra.0+0x287/0x310 [ 36.858887] Code: 41 5c 41 5d 41 5e 41 5f e9 c6 fe b1 ff e8 c1 fe b1 ff 48 8b 7c 24 10 48 c7 c6 00 15 75 88 e8 10 80 d9 ff 0f 0b e8 a9 fe b1 ff <0f> 0b e8 a2 fe b1 ff 48 8b 7c 24 10 48 c7 c6 60 19 75 88 e8 f1 7f [ 36.877775] RSP: 0018:ffff8880afd973c0 EFLAGS: 00010293 [ 36.883124] RAX: ffff8880af568540 RBX: 0000000000000000 RCX: ffffffff81b05dd8 [ 36.890386] RDX: 0000000000000000 RSI: ffffffff81b05fc7 RDI: 0000000000000001 [ 36.897647] RBP: 000000000000011d R08: 0000000000000001 R09: 0000000000000000 [ 36.904897] R10: 0000000000000001 R11: 0000000000000000 R12: 000000000000011d [ 36.912154] R13: 0000000000000001 R14: ffffea0002298dc0 R15: 000000000000011e [ 36.919408] FS: 00007f0be58fa700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.927630] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.933505] CR2: 00007fb57519b028 CR3: 0000000098a44000 CR4: 00000000001406f0 [ 36.940776] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.948036] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.955305] Call Trace: [ 36.957886] block_write_end+0x53/0x140 [ 36.961849] ext4_write_end+0x22b/0xec0 [ 36.965823] ext4_da_write_end+0x860/0xa70 [ 36.970157] generic_perform_write+0x2ae/0x4d0 [ 36.974724] ? filemap_page_mkwrite+0x2f0/0x2f0 [ 36.979397] ? generic_file_direct_write+0x362/0x4a0 [ 36.984505] __generic_file_write_iter+0x494/0x610 [ 36.989431] ext4_file_write_iter+0x2fe/0xf20 [ 36.993911] ? ext4_file_open+0x600/0x600 [ 36.998043] ? iter_file_splice_write+0x168/0xbb0 [ 37.002868] ? direct_splice_actor+0x115/0x160 [ 37.007433] ? splice_direct_to_actor+0x33f/0x8d0 [ 37.012260] ? do_sendfile+0x550/0xc30 [ 37.016145] ? __se_sys_sendfile64+0x147/0x160 [ 37.020714] ? do_syscall_64+0xf9/0x620 [ 37.024687] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.030299] ? common_file_perm+0x4e5/0x850 [ 37.034638] do_iter_readv_writev+0x668/0x790 [ 37.039127] ? clone_verify_area+0x240/0x240 [ 37.043553] ? security_file_permission+0x1c0/0x220 [ 37.048574] do_iter_write+0x182/0x5d0 [ 37.052446] vfs_iter_write+0x70/0xa0 [ 37.056231] iter_file_splice_write+0x60d/0xbb0 [ 37.060901] ? splice_from_pipe_next.part.0+0x360/0x360 [ 37.066251] ? security_file_permission+0x1c0/0x220 [ 37.071254] ? splice_from_pipe_next.part.0+0x360/0x360 [ 37.076601] direct_splice_actor+0x115/0x160 [ 37.081010] splice_direct_to_actor+0x33f/0x8d0 [ 37.085677] ? generic_pipe_buf_nosteal+0x10/0x10 [ 37.090511] ? do_splice_to+0x160/0x160 [ 37.094472] do_splice_direct+0x1a7/0x270 [ 37.098604] ? splice_direct_to_actor+0x8d0/0x8d0 [ 37.103523] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.108524] do_sendfile+0x550/0xc30 [ 37.112244] ? do_compat_pwritev64+0x1b0/0x1b0 [ 37.116811] ? __se_sys_futex+0x28f/0x3b0 [ 37.120956] ? __se_sys_futex+0x298/0x3b0 [ 37.125088] __se_sys_sendfile64+0x147/0x160 [ 37.129485] ? __se_sys_sendfile+0x180/0x180 [ 37.133877] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 37.139230] ? trace_hardirqs_off_caller+0x6e/0x210 [ 37.144260] ? do_syscall_64+0x21/0x620 [ 37.148240] do_syscall_64+0xf9/0x620 [ 37.152030] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.157200] RIP: 0033:0x44ac69 [ 37.160373] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 [ 37.179257] RSP: 002b:00007f0be58fa2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 37.186977] RAX: ffffffffffffffda RBX: 00000000004cd4e0 RCX: 000000000044ac69 [ 37.194241] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 [ 37.201527] RBP: 000000000049d0b4 R08: 0000000000000000 R09: 0000000000000000 [ 37.208790] R10: 0000000000010000 R11: 0000000000000246 R12: 0030656c69662f2e [ 37.216060] R13: 000000000049c0b0 R14: 0000000300000002 R15: 00000000004cd4e8 [ 37.223334] Modules linked in: [ 37.238078] ---[ end trace 9332becac91baad2 ]--- [ 37.242951] RIP: 0010:__block_commit_write.constprop.0.isra.0+0x287/0x310 [ 37.250610] Code: 41 5c 41 5d 41 5e 41 5f e9 c6 fe b1 ff e8 c1 fe b1 ff 48 8b 7c 24 10 48 c7 c6 00 15 75 88 e8 10 80 d9 ff 0f 0b e8 a9 fe b1 ff <0f> 0b e8 a2 fe b1 ff 48 8b 7c 24 10 48 c7 c6 60 19 75 88 e8 f1 7f [ 37.269851] RSP: 0018:ffff8880afd973c0 EFLAGS: 00010293 [ 37.275236] RAX: ffff8880af568540 RBX: 0000000000000000 RCX: ffffffff81b05dd8 [ 37.282555] RDX: 0000000000000000 RSI: ffffffff81b05fc7 RDI: 0000000000000001 [ 37.289911] RBP: 000000000000011d R08: 0000000000000001 R09: 0000000000000000 [ 37.297188] R10: 0000000000000001 R11: 0000000000000000 R12: 000000000000011d [ 37.304493] R13: 0000000000000001 R14: ffffea0002298dc0 R15: 000000000000011e [ 37.311902] FS: 00007f0be58fa700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 37.320178] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.326076] CR2: 00007f36e003a048 CR3: 0000000098a44000 CR4: 00000000001406e0 [ 37.333417] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.340754] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.348085] Kernel panic - not syncing: Fatal exception [ 37.353955] Kernel Offset: disabled [ 37.357593] Rebooting in 86400 seconds..