BUG: unable to handle kernel paging request at ffff88010d5fc000 PGD c316067 P4D c316067 PUD 129108063 PMD 1b061f063 PTE 0 Oops: 0002 [#1] SMP PTI CPU: 0 PID: 11579 Comm: udevd Not tainted 4.18.0-rc4+ #27 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_internal_alloc_meta_for_pages+0x230/0x730 mm/kmsan/kmsan.c:697 Code: aa aa aa aa 48 0f af f2 48 ba 00 00 00 00 00 88 ff ff 48 01 f2 be 01 00 00 00 31 ff 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 <89> 04 ba 48 63 fe 83 c6 01 48 39 f9 77 f2 31 c0 45 85 e4 0f 8e b4 RSP: 0018:ffff880191a6ed00 EFLAGS: 00010046 RAX: 000000008900007d RBX: ffffea0006503e80 RCX: 0000000000000400 RDX: ffff88010d5fc000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff880191a6ef68 R08: 0000000000480020 R09: 0000000000000003 R10: ffffffff8a401668 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000480020 R14: ffffea0009edbc40 R15: ffffea0006175da0 FS: 00007f2d5a11d7a0(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88010d5fc000 CR3: 00000001ad5e8000 CR4: 00000000001406f0 DR0: 00000000200001c0 DR1: 00000000200001c0 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: kmsan_alloc_page+0x80/0xe0 mm/kmsan/kmsan_hooks.c:250 __alloc_pages_nodemask+0x105b/0x6320 mm/page_alloc.c:4409 alloc_pages_vma+0xce5/0x1830 mm/mempolicy.c:2057 shmem_alloc_page mm/shmem.c:1489 [inline] shmem_alloc_and_acct_page+0x76b/0x1160 mm/shmem.c:1514 shmem_getpage_gfp+0x3d9b/0x6090 mm/shmem.c:1789 shmem_getpage mm/shmem.c:131 [inline] shmem_write_begin+0x1ae/0x330 mm/shmem.c:2408 generic_perform_write+0x447/0xa00 mm/filemap.c:3139 __generic_file_write_iter+0x429/0xa00 mm/filemap.c:3264 generic_file_write_iter+0x814/0xbf0 mm/filemap.c:3292 call_write_iter include/linux/fs.h:1793 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x87e/0xb90 fs/read_write.c:487 vfs_write+0x467/0x8c0 fs/read_write.c:549 ksys_write fs/read_write.c:598 [inline] __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x1cf/0x400 fs/read_write.c:607 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x7f2d59825370 Code: 73 01 c3 48 8b 0d c8 4a 2b 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 83 3d 85 a2 2b 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 0e 8a 01 00 48 89 04 24 RSP: 002b:00007fffb3e39ab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000000001a RCX: 00007f2d59825370 RDX: 000000000000001a RSI: 00007f2d5a124000 RDI: 0000000000000005 RBP: 00007f2d5a124000 R08: 00007f2d5a11d7a0 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000d5c870 R13: 000000000000001a R14: 00007fffb3e39ba0 R15: 0000000000000001 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) CR2: ffff88010d5fc000 ---[ end trace 2247a003321a6307 ]--- BUG: unable to handle kernel paging request at ffff88010d5ff018 RIP: 0010:kmsan_internal_alloc_meta_for_pages+0x230/0x730 mm/kmsan/kmsan.c:697 Code: PGD c316067 aa aa P4D c316067 aa aa PUD 129108063 48 0f PMD 1b061f063 af f2 PTE 0 48 ba 00 00 00 Oops: 0000 [#2] SMP PTI CPU: 1 PID: 15135 Comm: syz-executor4 Tainted: G D 4.18.0-rc4+ #27 00 00 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 88 ff RIP: 0010:zap_pmd_range mm/memory.c:1420 [inline] RIP: 0010:zap_pud_range mm/memory.c:1467 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1488 [inline] RIP: 0010:unmap_page_range+0x7b7/0x3c00 mm/memory.c:1509 ff 48 Code: 01 f2 4c be 01 0f 00 00 45 00 31 f7 ff 0f 4c 1f 40 89 00 66 b4 2e 0f 24 1f 84 c0 00 00 00 00 00 00 00 <89> 00 04 ba 0f 48 63 45 fe 83 c2 c6 01 89 48 39 44 f9 77 24 f2 31 6c c0 45 48 85 e4 83 0f 8e bc b4 24 18 RSP: 0018:ffff880191a6ed00 EFLAGS: 00010046 01 RAX: 000000008900007d RBX: ffffea0006503e80 RCX: 0000000000000400 00 RDX: ffff88010d5fc000 RSI: 0000000000000001 RDI: 0000000000000000 00 RBP: ffff880191a6ef68 R08: 0000000000480020 R09: 0000000000000003 R10: ffffffff8a401668 R11: 0000000000000000 R12: 0000000000000001 00 R13: 0000000000480020 R14: ffffea0009edbc40 R15: ffffea0006175da0 FS: 00007f2d5a11d7a0(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 0f CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88010d5fc000 CR3: 00000001ad5e8000 CR4: 00000000001406f0 85 DR0: 00000000200001c0 DR1: 00000000200001c0 DR2: 0000000000000000 f4 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600