random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) ================================================================== BUG: KASAN: stack-out-of-bounds in __xfrm_dst_hash net/xfrm/xfrm_hash.h:95 [inline] BUG: KASAN: stack-out-of-bounds in xfrm_dst_hash net/xfrm/xfrm_state.c:60 [inline] BUG: KASAN: stack-out-of-bounds in xfrm_state_find+0x26ce/0x27c0 net/xfrm/xfrm_state.c:806 Read of size 4 at addr ffff8801da3ef650 by task syz-executor407/3814 CPU: 1 PID: 3814 Comm: syz-executor407 Not tainted 4.9.99-g74fa0af4 #27 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801da3eecc8 ffffffff81eb0f09 ffffea000768fbc0 ffff8801da3ef650 0000000000000000 ffff8801da3ef650 0000000000000003 ffff8801da3eed00 ffffffff815652eb ffff8801da3ef650 0000000000000004 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] print_address_description+0x6c/0x234 mm/kasan/report.c:256 [] kasan_report_error mm/kasan/report.c:355 [inline] [] kasan_report.cold.6+0x242/0x2fe mm/kasan/report.c:412 [] __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432 [] __xfrm_dst_hash net/xfrm/xfrm_hash.h:95 [inline] [] xfrm_dst_hash net/xfrm/xfrm_state.c:60 [inline] [] xfrm_state_find+0x26ce/0x27c0 net/xfrm/xfrm_state.c:806 [] xfrm_tmpl_resolve_one+0x1dc/0x850 net/xfrm/xfrm_policy.c:1483 [] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1527 [inline] [] xfrm_resolve_and_create_bundle+0x219/0x1ff0 net/xfrm/xfrm_policy.c:1875 [] xfrm_lookup+0x23f/0xb70 net/xfrm/xfrm_policy.c:2229 [] xfrm_lookup_route+0x39/0x1b0 net/xfrm/xfrm_policy.c:2351 [] ip_route_output_flow+0x90/0xa0 net/ipv4/route.c:2438 [] udp_sendmsg+0x140f/0x1bd0 net/ipv4/udp.c:1023 [] udpv6_sendmsg+0x127d/0x2430 net/ipv6/udp.c:1086 [] inet_sendmsg+0x203/0x4d0 net/ipv4/af_inet.c:770 [] sock_sendmsg_nosec net/socket.c:635 [inline] [] sock_sendmsg+0xcc/0x110 net/socket.c:645 [] ___sys_sendmsg+0x47a/0x840 net/socket.c:1969 [] __sys_sendmmsg+0x161/0x3d0 net/socket.c:2059 [] SYSC_sendmmsg net/socket.c:2090 [inline] [] SyS_sendmmsg+0x35/0x60 net/socket.c:2085 [] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb The buggy address belongs to the page: page:ffffea000768fbc0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x8000000000000000() page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801da3ef500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 ffff8801da3ef580: f1 f1 f1 00 f2 f2 f2 f2 f2 f2 f2 00 00 00 00 f2 >ffff8801da3ef600: f2 f2 f2 00 00 00 00 00 00 00 f2 f2 f2 f2 f2 00 ^ ffff8801da3ef680: 00 00 00 00 00 00 00 00 f2 f2 f2 00 00 00 00 00 ffff8801da3ef700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================