random: sshd: uninitialized urandom read (32 bytes read, 119 bits of entropy available) kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 3323 Comm: syzkaller462936 Not tainted 4.4.104-ged884eb #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8800b9330000 task.stack: ffff8800b7c88000 RIP: 0010:[] [] __list_del_entry+0x86/0x1d0 /syzkaller/managers/android-44-kasan-gce/kernel/lib/list_debug.c:57 RSP: 0018:ffff8800b7c8f5d0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffff8800b699f350 RDX: 0000000000000000 RSI: ffffffff85193810 RDI: ffff8800b699f358 RBP: ffff8800b7c8f5e8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 1ffff10016f91e8a R12: 0000000000000000 R13: ffff8800b699f378 R14: 00000000ffffffde R15: ffff8800b699f2f9 FS: 00000000007d4880(0063) GS:ffff8801db500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000ef86 CR3: 00000000b687a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: 00000000ffffffde ffff8800b699f350 ffffffff846e9d40 ffff8800b7c8f600 ffffffff81d2912d ffff8800b699f350 ffff8800b7c8f620 ffffffff83270964 ffff8800b96a4980 ffff8800b699f350 ffff8800b7c8f640 ffffffff83291cce Call Trace: [] list_del+0xd/0x70 /syzkaller/managers/android-44-kasan-gce/kernel/lib/list_debug.c:77 [] xfrm_state_walk_done+0x64/0x90 /syzkaller/managers/android-44-kasan-gce/kernel/net/xfrm/xfrm_state.c:1675 [] xfrm_dump_sa_done+0x6e/0x90 /syzkaller/managers/android-44-kasan-gce/kernel/net/xfrm/xfrm_user.c:913 [] netlink_dump+0x7e4/0xb60 /syzkaller/managers/android-44-kasan-gce/kernel/net/netlink/af_netlink.c:2158 [] __netlink_dump_start+0x4e6/0x770 /syzkaller/managers/android-44-kasan-gce/kernel/net/netlink/af_netlink.c:2223 [] netlink_dump_start /syzkaller/managers/android-44-kasan-gce/kernel/include/linux/netlink.h:175 [inline] [] xfrm_user_rcv_msg+0x4f2/0x730 /syzkaller/managers/android-44-kasan-gce/kernel/net/xfrm/xfrm_user.c:2512 [] netlink_rcv_skb+0x11f/0x330 /syzkaller/managers/android-44-kasan-gce/kernel/net/netlink/af_netlink.c:2305 [] xfrm_netlink_rcv+0x69/0x90 /syzkaller/managers/android-44-kasan-gce/kernel/net/xfrm/xfrm_user.c:2533 [] netlink_unicast_kernel /syzkaller/managers/android-44-kasan-gce/kernel/net/netlink/af_netlink.c:1223 [inline] [] netlink_unicast+0x4c5/0x760 /syzkaller/managers/android-44-kasan-gce/kernel/net/netlink/af_netlink.c:1249 [] netlink_sendmsg+0x832/0xbc0 /syzkaller/managers/android-44-kasan-gce/kernel/net/netlink/af_netlink.c:1803 [] sock_sendmsg_nosec /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:625 [inline] [] sock_sendmsg+0xb5/0xf0 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:635 [] ___sys_sendmsg+0x66d/0x7d0 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:1961 [] __sys_sendmsg+0xc3/0x160 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:1995 [] SYSC_sendmsg /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:2006 [inline] [] SyS_sendmsg+0xd/0x20 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:2002 [] entry_SYSCALL_64_fastpath+0x16/0x76 Code: c4 0f 84 94 00 00 00 48 b8 00 02 00 00 00 00 ad de 48 39 c3 0f 84 a5 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 e8 00 00 00 4c 8b 03 49 39 c8 0f 85 9b 00 00 RIP [] __list_del_entry+0x86/0x1d0 /syzkaller/managers/android-44-kasan-gce/kernel/lib/list_debug.c:57 RSP ---[ end trace 14e87c899b6d7645 ]---