Warning: Permanently added '10.128.0.82' (ECDSA) to the list of known hosts. executing program executing program executing program [ 61.222007][ T6857] loop_set_block_size: loop0 () has still dirty pages (nrpages=1) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.409934][ T6856] general protection fault, probably for non-canonical address 0xdffffc000000001e: 0000 [#1] PREEMPT SMP KASAN [ 61.421686][ T6856] KASAN: null-ptr-deref in range [0x00000000000000f0-0x00000000000000f7] [ 61.430108][ T6856] CPU: 0 PID: 6856 Comm: systemd-udevd Not tainted 5.9.0-rc1-next-20200821-syzkaller #0 [ 61.440060][ T6856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.450132][ T6856] RIP: 0010:bdev_read_page+0x37/0x290 executing program executing program executing program executing program [ 61.455522][ T6856] Code: 4c 8d b3 f0 00 00 00 48 83 ec 10 48 89 54 24 08 48 89 34 24 e8 2a e9 a3 ff 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e8 01 00 00 48 8b ab f0 00 00 00 48 ba 00 00 00 [ 61.475214][ T6856] RSP: 0018:ffffc900052a7560 EFLAGS: 00010206 [ 61.481295][ T6856] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81d158aa [ 61.489371][ T6856] RDX: 000000000000001e RSI: ffffffff81d08996 RDI: 0000000000000000 [ 61.497458][ T6856] RBP: fff8974745d00000 R08: 0000000000000001 R09: ffffea00029903c7 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.505433][ T6856] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 61.513535][ T6856] R13: 0000000000000000 R14: 00000000000000f0 R15: ffffc900052a7780 [ 61.522152][ T6856] FS: 00007f44b8b498c0(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 61.531084][ T6856] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.537674][ T6856] CR2: 00007ffc965141c4 CR3: 00000000a65fc000 CR4: 00000000001506f0 [ 61.545653][ T6856] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.553665][ T6856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.561661][ T6856] Call Trace: [ 61.564944][ T6856] do_mpage_readpage+0x10ca/0x1ef0 [ 61.570156][ T6856] ? lock_downgrade+0x830/0x830 [ 61.575022][ T6856] ? mpage_writepage+0x1b0/0x1b0 [ 61.580066][ T6856] ? __xa_clear_mark+0x110/0x110 [ 61.585059][ T6856] ? lock_is_held_type+0xbb/0xf0 [ 61.590028][ T6856] ? __lock_acquire+0x16cb/0x5640 [ 61.595183][ T6856] mpage_readahead+0x3a3/0x880 [ 61.599964][ T6856] ? do_mpage_readpage+0x1ef0/0x1ef0 [ 61.605269][ T6856] ? bdev_evict_inode+0x410/0x410 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.610426][ T6856] ? lock_downgrade+0x830/0x830 [ 61.615295][ T6856] ? blkdev_write_begin+0x40/0x40 [ 61.620340][ T6856] read_pages+0x1df/0x8d0 [ 61.624670][ T6856] ? read_cache_pages+0x750/0x750 [ 61.629701][ T6856] ? add_to_page_cache_lru+0x2ab/0x5b0 [ 61.635426][ T6856] ? alloc_pages_current+0x18f/0x280 [ 61.640705][ T6856] ? __page_cache_alloc+0x10b/0x450 [ 61.645924][ T6856] page_cache_readahead_unbounded+0x572/0x850 [ 61.651992][ T6856] ? lock_acquire+0x1f1/0xad0 [ 61.656670][ T6856] ? read_pages+0x8d0/0x8d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.661166][ T6856] ? blk_cgroup_congested+0x1f9/0x3e0 [ 61.666549][ T6856] force_page_cache_readahead+0x2e9/0x460 [ 61.672390][ T6856] page_cache_sync_readahead+0x113/0x130 [ 61.678018][ T6856] generic_file_buffered_read+0x159d/0x3150 [ 61.683925][ T6856] generic_file_read_iter+0x396/0x4e0 [ 61.689307][ T6856] ? aa_path_link+0x2f0/0x2f0 [ 61.694530][ T6856] blkdev_read_iter+0x11b/0x180 [ 61.699379][ T6856] new_sync_read+0x41a/0x6e0 [ 61.704002][ T6856] ? vfs_dedupe_file_range+0x780/0x780 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.709477][ T6856] vfs_read+0x383/0x5a0 [ 61.713639][ T6856] ksys_read+0x12d/0x250 [ 61.717886][ T6856] ? vfs_write+0x730/0x730 [ 61.722305][ T6856] ? __secure_computing+0x104/0x360 [ 61.727505][ T6856] do_syscall_64+0x2d/0x70 [ 61.731918][ T6856] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 61.737800][ T6856] RIP: 0033:0x7f44b7c90210 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.742237][ T6856] Code: 73 01 c3 48 8b 0d 98 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d b9 c1 20 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 4e fc ff ff 48 89 04 24 [ 61.762906][ T6856] RSP: 002b:00007ffd0636d0f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 61.771324][ T6856] RAX: ffffffffffffffda RBX: 000056283ad04a80 RCX: 00007f44b7c90210 [ 61.779300][ T6856] RDX: 0000000000000400 RSI: 000056283ad04aa8 RDI: 000000000000000f [ 61.787396][ T6856] RBP: 000056283ad014f0 R08: 00007f44b7c7af68 R09: 0000000000000430 [ 61.795365][ T6856] R10: 000056283ad04a98 R11: 0000000000000246 R12: 0000000000000000 [ 61.803416][ T6856] R13: 0000000000000400 R14: 000056283ad01540 R15: 0000000000000400 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.811392][ T6856] Modules linked in: [ 61.831893][ T6856] ---[ end trace 1e93c332757bb044 ]--- [ 61.837408][ T6856] RIP: 0010:bdev_read_page+0x37/0x290 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.843503][ T6856] Code: 4c 8d b3 f0 00 00 00 48 83 ec 10 48 89 54 24 08 48 89 34 24 e8 2a e9 a3 ff 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 e8 01 00 00 48 8b ab f0 00 00 00 48 ba 00 00 00 [ 61.864377][ T6856] RSP: 0018:ffffc900052a7560 EFLAGS: 00010206 [ 61.870465][ T6856] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81d158aa [ 61.878504][ T6856] RDX: 000000000000001e RSI: ffffffff81d08996 RDI: 0000000000000000 [ 61.886621][ T6856] RBP: fff8974745d00000 R08: 0000000000000001 R09: ffffea00029903c7 [ 61.894733][ T6856] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 61.902744][ T6856] R13: 0000000000000000 R14: 00000000000000f0 R15: ffffc900052a7780 executing program executing program executing program executing program executing program executing program executing program [ 61.910723][ T6856] FS: 00007f44b8b498c0(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 61.919723][ T6856] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.926416][ T6856] CR2: 00007fe193156000 CR3: 00000000a65fc000 CR4: 00000000001506f0 [ 61.934908][ T6856] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.944067][ T6856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.952536][ T6856] Kernel panic - not syncing: Fatal exception [ 61.960374][ T6856] Kernel Offset: disabled [ 61.964713][ T6856] Rebooting in 86400 seconds..