[ 27.071634] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.090077] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 27.099511] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 27.107487] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.246727] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 27.278319] syz-executor.0 (7979) used greatest stack depth: 24160 bytes left [ 27.677583] can: request_module (can-proto-0) failed. [ 27.687482] can: request_module (can-proto-0) failed. [ 27.695297] can: request_module (can-proto-0) failed. [ 37.547659] unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Warning: Permanently added '10.128.10.20' (ECDSA) to the list of known hosts. [ 45.496485] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) [ 45.519402] audit: type=1804 audit(1649046886.964:2): pid=8314 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 45.552382] audit: type=1800 audit(1649046886.964:3): pid=8314 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor208" name="bus" dev="loop0" ino=1312 res=0 [ 45.571735] audit: type=1804 audit(1649046886.964:4): pid=8314 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 45.662795] audit: type=1804 audit(1649046887.104:5): pid=8321 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 45.672335] attempt to access beyond end of device [ 45.690645] loop0: rw=2049, want=3205, limit=2816 [ 45.695865] audit: type=1804 audit(1649046887.104:6): pid=8321 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 45.699796] Buffer I/O error on dev loop0, logical block 3204, lost async page write [ 45.723296] attempt to access beyond end of device [ 45.728672] loop0: rw=2049, want=3307, limit=2816 [ 45.733603] Buffer I/O error on dev loop0, logical block 3306, lost async page write [ 45.741644] attempt to access beyond end of device [ 45.746620] loop0: rw=2049, want=3329, limit=2816 [ 45.751539] Buffer I/O error on dev loop0, logical block 3328, lost async page write [ 45.759917] attempt to access beyond end of device [ 45.764907] loop0: rw=2049, want=3330, limit=2816 [ 45.769833] Buffer I/O error on dev loop0, logical block 3329, lost async page write [ 45.777789] attempt to access beyond end of device [ 45.782894] loop0: rw=2049, want=3331, limit=2816 [ 45.787849] Buffer I/O error on dev loop0, logical block 3330, lost async page write [ 45.796021] attempt to access beyond end of device [ 45.800945] loop0: rw=2049, want=3332, limit=2816 [ 45.805822] Buffer I/O error on dev loop0, logical block 3331, lost async page write [ 45.813706] attempt to access beyond end of device [ 45.818673] loop0: rw=2049, want=3333, limit=2816 [ 45.823557] Buffer I/O error on dev loop0, logical block 3332, lost async page write [ 45.831525] attempt to access beyond end of device [ 45.836567] loop0: rw=2049, want=3434, limit=2816 [ 45.841486] Buffer I/O error on dev loop0, logical block 3433, lost async page write [ 45.849533] attempt to access beyond end of device [ 45.854524] loop0: rw=2049, want=3458, limit=2816 [ 45.859351] Buffer I/O error on dev loop0, logical block 3457, lost async page write [ 45.867292] attempt to access beyond end of device [ 45.872317] loop0: rw=2049, want=3462, limit=2816 [ 45.877202] Buffer I/O error on dev loop0, logical block 3461, lost async page write [ 45.885248] attempt to access beyond end of device [ 45.890164] loop0: rw=2049, want=3562, limit=2816 [ 45.895070] attempt to access beyond end of device [ 45.899983] loop0: rw=2049, want=3587, limit=2816 [ 45.904900] attempt to access beyond end of device [ 45.909908] loop0: rw=2049, want=3590, limit=2816 [ 45.914826] attempt to access beyond end of device [ 45.919735] loop0: rw=2049, want=3690, limit=2816 [ 45.924634] attempt to access beyond end of device [ 45.929553] loop0: rw=2049, want=3713, limit=2816 [ 45.934584] attempt to access beyond end of device [ 45.939506] loop0: rw=2049, want=3716, limit=2816 [ 45.944415] attempt to access beyond end of device [ 45.949329] loop0: rw=2049, want=3718, limit=2816 [ 45.954453] attempt to access beyond end of device [ 45.959366] loop0: rw=2049, want=3818, limit=2816 [ 45.964265] attempt to access beyond end of device [ 45.969176] loop0: rw=2049, want=3841, limit=2816 [ 45.974087] attempt to access beyond end of device [ 45.979002] loop0: rw=2049, want=3842, limit=2816 [ 45.983912] attempt to access beyond end of device [ 45.988825] loop0: rw=2049, want=3844, limit=2816 [ 46.079542] audit: type=1804 audit(1649046887.524:7): pid=8325 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 46.107276] audit: type=1804 audit(1649046887.544:8): pid=8325 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 46.110799] attempt to access beyond end of device [ 46.130603] loop0: rw=2049, want=4353, limit=2816 [ 46.135654] attempt to access beyond end of device [ 46.140573] loop0: rw=2049, want=4356, limit=2816 [ 46.145643] attempt to access beyond end of device [ 46.150558] loop0: rw=2049, want=4357, limit=2816 [ 46.155570] attempt to access beyond end of device [ 46.160481] loop0: rw=2049, want=4358, limit=2816 [ 46.165922] attempt to access beyond end of device [ 46.170836] loop0: rw=2049, want=4458, limit=2816 [ 46.175770] attempt to access beyond end of device [ 46.180682] loop0: rw=2049, want=4481, limit=2816 [ 46.185589] attempt to access beyond end of device [ 46.190588] loop0: rw=2049, want=4483, limit=2816 [ 46.195487] attempt to access beyond end of device [ 46.200403] loop0: rw=2049, want=4484, limit=2816 [ 46.205296] attempt to access beyond end of device [ 46.210209] loop0: rw=2049, want=4485, limit=2816 [ 46.215119] attempt to access beyond end of device [ 46.220055] loop0: rw=2049, want=4486, limit=2816 [ 46.224973] attempt to access beyond end of device [ 46.229895] loop0: rw=2049, want=4586, limit=2816 [ 46.234816] attempt to access beyond end of device [ 46.239818] loop0: rw=2049, want=4615, limit=2816 [ 46.244726] attempt to access beyond end of device [ 46.249640] loop0: rw=2049, want=4714, limit=2816 [ 46.254577] attempt to access beyond end of device [ 46.259576] loop0: rw=2049, want=4738, limit=2816 [ 46.264500] attempt to access beyond end of device [ 46.269515] loop0: rw=2049, want=4743, limit=2816 [ 46.274432] attempt to access beyond end of device [ 46.279343] loop0: rw=2049, want=4842, limit=2816 [ 46.284415] attempt to access beyond end of device [ 46.289594] loop0: rw=2049, want=4865, limit=2816 [ 46.294991] attempt to access beyond end of device [ 46.299920] loop0: rw=2049, want=4866, limit=2816 [ 46.304812] attempt to access beyond end of device [ 46.309735] loop0: rw=2049, want=4867, limit=2816 [ 46.314635] attempt to access beyond end of device [ 46.319558] loop0: rw=2049, want=4871, limit=2816 [ 46.324468] attempt to access beyond end of device [ 46.329473] loop0: rw=2049, want=4971, limit=2816 [ 46.334397] attempt to access beyond end of device [ 46.339486] loop0: rw=2049, want=4993, limit=2816 [ 46.344394] attempt to access beyond end of device [ 46.349306] loop0: rw=2049, want=4996, limit=2816 [ 46.354227] attempt to access beyond end of device [ 46.359140] loop0: rw=2049, want=4999, limit=2816 [ 46.364090] attempt to access beyond end of device [ 46.369012] loop0: rw=2049, want=5098, limit=2816 [ 46.373940] attempt to access beyond end of device [ 46.378853] loop0: rw=2049, want=5119, limit=2816 [ 46.383775] attempt to access beyond end of device [ 46.388721] loop0: rw=2049, want=5120, limit=2816 [ 46.393827] attempt to access beyond end of device [ 46.398744] loop0: rw=2049, want=5122, limit=2816 [ 46.403601] attempt to access beyond end of device [ 46.408554] loop0: rw=2049, want=5123, limit=2816 [ 46.500471] audit: type=1804 audit(1649046887.944:9): pid=8329 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 46.519693] audit: type=1804 audit(1649046887.944:10): pid=8329 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 46.582068] audit: type=1804 audit(1649046888.024:11): pid=8333 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor208" name="/root/file0/bus" dev="loop0" ino=1312 res=1 [ 46.594333] attempt to access beyond end of device [ 46.606933] loop0: rw=2049, want=2819, limit=2816 [ 46.611945] attempt to access beyond end of device [ 46.618049] loop0: rw=2049, want=2820, limit=2816 [ 46.623011] attempt to access beyond end of device [ 46.628067] loop0: rw=2049, want=2922, limit=2816 [ 46.632949] attempt to access beyond end of device [ 46.638254] loop0: rw=2049, want=2946, limit=2816 [ 46.643120] attempt to access beyond end of device [ 46.648266] loop0: rw=2049, want=2949, limit=2816 [ 46.653121] attempt to access beyond end of device [ 46.658118] loop0: rw=2049, want=3052, limit=2816 [ 46.776727] ------------[ cut here ]------------ [ 46.781667] WARNING: CPU: 1 PID: 8337 at fs/udf/truncate.c:226 udf_truncate_extents+0x563/0x810 [ 46.790489] Kernel panic - not syncing: panic_on_warn set ... [ 46.790489] [ 46.797858] CPU: 1 PID: 8337 Comm: syz-executor208 Not tainted 4.14.275-syzkaller #0 [ 46.805808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.815141] Call Trace: [ 46.817701] dump_stack+0x14b/0x1e7 [ 46.821303] ? udf_truncate_extents+0x563/0x810 [ 46.825954] panic+0x1b0/0x358 [ 46.829275] ? add_taint.cold.4+0x11/0x11 [ 46.833506] ? udf_truncate_extents+0x563/0x810 [ 46.838156] __warn.cold.7+0x25/0x25 [ 46.841855] ? udf_truncate_extents+0x563/0x810 [ 46.846501] report_bug+0x1a1/0x200 [ 46.850215] ? debug_smp_processor_id+0x17/0x20 [ 46.854972] do_error_trap+0x1bd/0x310 [ 46.858837] ? math_error+0x300/0x300 [ 46.862876] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.867703] do_invalid_op+0x1b/0x20 [ 46.871483] invalid_op+0x1b/0x40 [ 46.874923] RIP: 0010:udf_truncate_extents+0x563/0x810 [ 46.880174] RSP: 0018:ffff88808f3bf838 EFLAGS: 00010206 [ 46.885511] RAX: 00000000ffffffff RBX: ffff88808f3bf9f8 RCX: 0000000000019000 [ 46.892766] RDX: 0000000000000200 RSI: dffffc0000000000 RDI: 0000000000000200 [ 46.900011] RBP: ffff88808f3bfa20 R08: 00000000ffffffff R09: 0000000000000001 [ 46.907431] R10: 0000000000000200 R11: 0000000000000000 R12: ffff8880890fb160 [ 46.915025] R13: ffff88808f3bf9b8 R14: ffff8880ab1ea3c0 R15: ffff8880890fb07c [ 46.922393] ? udf_truncate_extents+0x1c3/0x810 [ 46.927227] ? trace_hardirqs_on+0x10/0x10 [ 46.931450] ? udf_discard_prealloc+0x600/0x600 [ 46.936201] ? unmap_mapping_range+0xa5/0x250 [ 46.940700] ? udf_clear_extent_cache+0x9a/0xd0 [ 46.945375] ? lock_downgrade+0x7f0/0x7f0 [ 46.949504] ? lock_acquire+0x17e/0x3e0 [ 46.953552] ? _raw_spin_unlock+0x2c/0x50 [ 46.957704] udf_write_failed.isra.1+0xa3/0xd0 [ 46.962392] udf_write_begin+0x66/0x90 [ 46.966272] generic_perform_write+0x227/0x450 [ 46.970837] ? filemap_page_mkwrite+0x290/0x290 [ 46.975569] ? file_update_time+0xde/0x360 [ 46.979774] ? current_time+0xa0/0xa0 [ 46.983556] ? udf_file_write_iter+0x23c/0x470 [ 46.988569] ? lock_downgrade+0x7f0/0x7f0 [ 46.992696] ? udf_file_write_iter+0x99/0x470 [ 46.997165] __generic_file_write_iter+0x205/0x590 [ 47.002077] udf_file_write_iter+0x247/0x470 [ 47.006459] ? trace_hardirqs_on+0x10/0x10 [ 47.010679] ? lock_downgrade+0x7f0/0x7f0 [ 47.014831] __vfs_write+0x413/0x840 [ 47.018515] ? kernel_read+0x130/0x130 [ 47.022375] ? debug_check_no_obj_freed+0x2d5/0x890 [ 47.027370] ? rcu_read_lock_sched_held+0x108/0x120 [ 47.032355] ? rcu_sync_lockdep_assert+0x6d/0xb0 [ 47.037085] vfs_write+0x150/0x4f0 [ 47.040596] SyS_write+0x100/0x250 [ 47.044109] ? SyS_read+0x250/0x250 [ 47.047712] ? do_syscall_64+0x4c/0x5b0 [ 47.051660] ? SyS_read+0x250/0x250 [ 47.055275] do_syscall_64+0x1c7/0x5b0 [ 47.059154] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.063989] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 47.069266] RIP: 0033:0x7f243b577dc9 [ 47.072959] RSP: 002b:00007ffe2486bcf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 47.080645] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f243b577dc9 [ 47.088079] RDX: 00000000fffffc41 RSI: 0000000020001440 RDI: 0000000000000007 [ 47.095503] RBP: 0000000000000000 R08: 00007f243b5e6ec0 R09: 00007f243b5e6ec0 [ 47.102948] R10: 00007f243b5e6ec0 R11: 0000000000000246 R12: 00007ffe2486bd20 [ 47.110194] R13: 00007ffe2486bd0c R14: 431bde82d7b634db R15: 0000000000000000 [ 47.117697] Kernel Offset: disabled [ 47.121360] Rebooting in 86400 seconds..