IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 ================================================================== BUG: KMSAN: kernel-infoleak in copyout lib/iov_iter.c:140 [inline] BUG: KMSAN: kernel-infoleak in copy_page_to_iter_iovec lib/iov_iter.c:212 [inline] BUG: KMSAN: kernel-infoleak in copy_page_to_iter+0x752/0x1b70 lib/iov_iter.c:777 CPU: 0 PID: 5243 Comm: blkid Not tainted 4.18.0-rc4+ #27 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x185/0x1e0 lib/dump_stack.c:113 kmsan_report+0x195/0x2c0 mm/kmsan/kmsan.c:982 kmsan_internal_check_memory+0x18e/0x210 mm/kmsan/kmsan.c:1046 kmsan_copy_to_user+0x83/0xe0 mm/kmsan/kmsan_hooks.c:479 copyout lib/iov_iter.c:140 [inline] copy_page_to_iter_iovec lib/iov_iter.c:212 [inline] copy_page_to_iter+0x752/0x1b70 lib/iov_iter.c:777 generic_file_buffered_read mm/filemap.c:2185 [inline] generic_file_read_iter+0x2f9b/0x45e0 mm/filemap.c:2362 blkdev_read_iter+0x20d/0x280 fs/block_dev.c:1933 call_read_iter include/linux/fs.h:1787 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x827/0xb40 fs/read_write.c:418 vfs_read+0x36c/0x6b0 fs/read_write.c:452 ksys_read fs/read_write.c:578 [inline] __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x1cf/0x400 fs/read_write.c:586 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x7fbd3bfd3310 Code: 73 01 c3 48 8b 0d 28 4b 2b 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 83 3d e5 a2 2b 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 6e 8a 01 00 48 89 04 24 RSP: 002b:00007fff4929a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000000000006d000 RCX: 00007fbd3bfd3310 RDX: 0000000000000029 RSI: 0000000000727a08 RDI: 0000000000000003 RBP: 00000000007279e0 R08: 0000000000000058 R09: 0101010101010101 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000721030 R13: 0000000000000029 R14: 0000000000721080 R15: 00000000007279f8 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:256 [inline] kmsan_internal_alloc_meta_for_pages+0x157/0x730 mm/kmsan/kmsan.c:694 kmsan_alloc_page+0x80/0xe0 mm/kmsan/kmsan_hooks.c:250 __alloc_pages_nodemask+0x105b/0x6320 mm/page_alloc.c:4409 alloc_pages_current+0x6b1/0x970 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:494 [inline] __page_cache_alloc+0x95/0x320 mm/filemap.c:946 page_cache_alloc include/linux/pagemap.h:234 [inline] generic_file_buffered_read mm/filemap.c:2273 [inline] generic_file_read_iter+0x230f/0x45e0 mm/filemap.c:2362 blkdev_read_iter+0x20d/0x280 fs/block_dev.c:1933 call_read_iter include/linux/fs.h:1787 [inline] new_sync_read fs/read_write.c:406 [inline] __vfs_read+0x827/0xb40 fs/read_write.c:418 vfs_read+0x36c/0x6b0 fs/read_write.c:452 ksys_read fs/read_write.c:578 [inline] __do_sys_read fs/read_write.c:588 [inline] __se_sys_read fs/read_write.c:586 [inline] __x64_sys_read+0x1cf/0x400 fs/read_write.c:586 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 Bytes 0-40 of 41 are uninitialized Memory access starts at ffff8801ad6a8000 ==================================================================