Free swap = 0kB Total swap = 0kB 1965969 pages RAM 0 pages HighMem/MovableOnly 102442 pages reserved BUG: unable to handle kernel NULL pointer dereference at 00000000000008f4 PGD 0 P4D 0 Oops: 0002 [#1] SMP PTI CPU: 1 PID: 11446 Comm: cryptomgr_probe Not tainted 4.19.0-rc1+ #40 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:65 Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 RSP: 0018:ffff880011fcf728 EFLAGS: 00010046 RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: 0000000000000fb0 RDX: 0000000000000fb0 RSI: 0000000000000000 RDI: 00000000000008f4 RBP: ffff880011fcf738 R08: 0000000000000000 R09: 00000000000008f4 R10: 0000000000000000 R11: ffffffff81355350 R12: 00000000bd60012c R13: 0000000000000000 R14: 0000000000000286 R15: fffffffffffffff4 FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000008f4 CR3: 00000001bab16000 CR4: 00000000001406e0 Call Trace: kmsan_thread_create+0x4b/0x90 mm/kmsan/kmsan_hooks.c:30 __kthread_create_on_node+0x71b/0x810 kernel/kthread.c:345 kthread_create_on_node+0x23f/0x270 kernel/kthread.c:381 cryptomgr_schedule_test crypto/algboss.c:255 [inline] cryptomgr_notify+0x2b7/0x12a0 crypto/algboss.c:276 notifier_call_chain kernel/notifier.c:93 [inline] __blocking_notifier_call_chain kernel/notifier.c:317 [inline] blocking_notifier_call_chain+0x1a6/0x2f0 kernel/notifier.c:328 crypto_probing_notify+0x86/0x180 crypto/api.c:254 crypto_wait_for_test+0x74/0x170 crypto/algapi.c:361 crypto_register_instance+0x807/0x900 crypto/algapi.c:572 skcipher_register_instance+0x35f/0x400 crypto/skcipher.c:1036 create+0x1145/0x1340 crypto/lrw.c:565 cryptomgr_probe+0x142/0x4b0 crypto/algboss.c:75 kthread+0x465/0x4a0 kernel/kthread.c:247 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:416 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) CR2: 00000000000008f4 ---[ end trace b05ae5dbf5f95203 ]--- RIP: 0010:memset_erms+0x9/0x10 arch/x86/lib/memset_64.S:65 Code: c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 01 RSP: 0018:ffff880011fcf728 EFLAGS: 00010046 RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: 0000000000000fb0 RDX: 0000000000000fb0 RSI: 0000000000000000 RDI: 00000000000008f4 RBP: ffff880011fcf738 R08: 0000000000000000 R09: 00000000000008f4 R10: 0000000000000000 R11: ffffffff81355350 R12: 00000000bd60012c R13: 0000000000000000 R14: 0000000000000286 R15: fffffffffffffff4 FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000008f4 CR3: 00000001bab16000 CR4: 00000000001406e0