netlink: 13 bytes leftover after parsing attributes in process `syz-executor7'. kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 11133 Comm: blkid Not tainted 4.13.0-rc5+ #42 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d2acc5c0 task.stack: ffff8801ca2b0000 RIP: 0010:create_empty_buffers+0xeb/0x7b0 fs/buffer.c:1581 RSP: 0018:ffff8801ca2b7060 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000000f RDX: 0000000000000000 RSI: 0000000000008000 RDI: ffffea0007643500 RBP: ffff8801ca2b7268 R08: 0000000000000001 R09: 1ffff10039456dc6 R10: ffff8801ca2b6df8 R11: 0000000000000000 R12: ffffea0007643500 R13: 0000000000000000 R14: ffff8801ca2b7240 R15: dffffc0000000000 FS: 00007fbb12080740(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000025f5d98 CR3: 00000001c936c000 CR4: 00000000001406e0 Call Trace: create_page_buffers+0x1ed/0x290 fs/buffer.c:1696 block_read_full_page+0xe9/0x950 fs/buffer.c:2285 blkdev_readpage+0x1c/0x20 fs/block_dev.c:583 do_generic_file_read mm/filemap.c:2071 [inline] generic_file_read_iter+0x1277/0x26b0 mm/filemap.c:2202 blkdev_read_iter+0x105/0x170 fs/block_dev.c:1917 call_read_iter include/linux/fs.h:1737 [inline] new_sync_read fs/read_write.c:400 [inline] __vfs_read+0x6a7/0xa00 fs/read_write.c:412 vfs_read+0x11e/0x350 fs/read_write.c:433 SYSC_read fs/read_write.c:549 [inline] SyS_read+0xef/0x220 fs/read_write.c:542 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x7fbb11987310 RSP: 002b:00007fffee032538 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbb11987310 RDX: 0000000000000400 RSI: 0000000001f50c58 RDI: 0000000000000003 RBP: 0000000000000086 R08: 0000000000000028 R09: 0000000000168000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000001f50c30 R13: 000000000001ffb1 R14: 0000000000000000 R15: 0000000000000004 Code: 4c 89 ee ba 01 00 00 00 4c 89 e7 e8 a0 e3 ff ff 48 89 85 18 fe ff ff 49 89 c5 eb 03 49 89 c5 e8 ec 5d b7 ff 4c 89 e8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 44 06 00 00 49 8d 7d 08 49 09 5d 00 48 89 RIP: create_empty_buffers+0xeb/0x7b0 fs/buffer.c:1581 RSP: ffff8801ca2b7060 ---[ end trace 69d485f9cb1d9101 ]--- Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..