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: 6980 Comm: cryptomgr_test Not tainted 4.15.0-rc2+ #153 netlink: 'syz-executor7': attribute type 4 has an invalid length. netlink: 1 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 netlink: 'syz-executor7': attribute type 4 has an invalid length. RIP: 0010:crypto_remove_spawns+0x58c/0x1260 crypto/algapi.c:159 RSP: 0018:ffff8801bd9c79e8 EFLAGS: 00010206 RAX: 0000000000000003 RBX: dffffc0000000000 RCX: ffffffff822581eb RDX: 0000000000000000 RSI: 1ffff10037b38fa6 RDI: 0000000000000018 RBP: ffff8801bd9c7dd8 R08: ffff8801bd9c7d70 R09: ffff8801d07fc180 R10: 000000000000000b R11: ffffed0037b38f09 R12: 0000000000000000 R13: ffff8801d7d84060 R14: ffffed0037b38f4e R15: ffff8801bd9c7db0 FS: 0000000000000000(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000716f94 CR3: 00000001c2249000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netlink: 'syz-executor7': attribute type 4 has an invalid length. crypto_alg_tested+0x514/0x6f0 crypto/algapi.c:311 cryptomgr_test+0x17/0x30 crypto/algboss.c:226 kthread+0x37a/0x440 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:441 Code: 84 e3 01 00 00 e8 25 b6 4a ff 4c 89 e8 48 c1 e8 03 80 3c 18 00 0f 85 d8 09 00 00 4d 8b 65 00 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 b4 09 00 00 4d 8b 6c 24 18 4c 3b ad 50 fc ff RIP: crypto_remove_spawns+0x58c/0x1260 crypto/algapi.c:159 RSP: ffff8801bd9c79e8 ---[ end trace e97ba550127d6c56 ]--- netlink: 'syz-executor7': attribute type 4 has an invalid length. Kernel panic - not syncing: Fatal exception Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..