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: KMSAN: uninit-value in __arch_swab32 arch/x86/include/uapi/asm/swab.h:10 [inline] BUG: KMSAN: uninit-value in __fswab32 include/uapi/linux/swab.h:59 [inline] BUG: KMSAN: uninit-value in __xfrm6_daddr_saddr_hash net/xfrm/xfrm_hash.h:29 [inline] BUG: KMSAN: uninit-value in __xfrm_dst_hash net/xfrm/xfrm_hash.h:96 [inline] BUG: KMSAN: uninit-value in xfrm_dst_hash net/xfrm/xfrm_state.c:61 [inline] BUG: KMSAN: uninit-value in xfrm_state_find+0x2723/0x4ae0 net/xfrm/xfrm_state.c:952 CPU: 0 PID: 4855 Comm: syz-executor277 Not tainted 4.19.0-rc4+ #61 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x2f6/0x430 lib/dump_stack.c:113 kmsan_report+0x183/0x2b0 mm/kmsan/kmsan.c:917 __msan_warning+0x70/0xc0 mm/kmsan/kmsan_instr.c:500 __arch_swab32 arch/x86/include/uapi/asm/swab.h:10 [inline] __fswab32 include/uapi/linux/swab.h:59 [inline] __xfrm6_daddr_saddr_hash net/xfrm/xfrm_hash.h:29 [inline] __xfrm_dst_hash net/xfrm/xfrm_hash.h:96 [inline] xfrm_dst_hash net/xfrm/xfrm_state.c:61 [inline] xfrm_state_find+0x2723/0x4ae0 net/xfrm/xfrm_state.c:952 xfrm_tmpl_resolve_one net/xfrm/xfrm_policy.c:1413 [inline] xfrm_tmpl_resolve net/xfrm/xfrm_policy.c:1458 [inline] xfrm_resolve_and_create_bundle+0xa06/0x49a0 net/xfrm/xfrm_policy.c:1753 xfrm_lookup_with_ifid+0x9c7/0x3e60 net/xfrm/xfrm_policy.c:2076 xfrm_lookup net/xfrm/xfrm_policy.c:2200 [inline] xfrm_lookup_route+0x104/0x370 net/xfrm/xfrm_policy.c:2211 ip_route_output_flow+0x33f/0x3a0 net/ipv4/route.c:2592 udp_sendmsg+0x2c6a/0x3cd0 net/ipv4/udp.c:1082 udpv6_sendmsg+0x12e2/0x4cf0 net/ipv6/udp.c:1196 inet_sendmsg+0x4c5/0x7d0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg net/socket.c:631 [inline] ___sys_sendmsg+0xe70/0x1290 net/socket.c:2114 __sys_sendmmsg+0x4ac/0x930 net/socket.c:2209 __do_sys_sendmmsg net/socket.c:2238 [inline] __se_sys_sendmmsg+0xbd/0xe0 net/socket.c:2235 __x64_sys_sendmmsg+0x56/0x70 net/socket.c:2235 do_syscall_64+0xb8/0x100 arch/x86/entry/common.c:291 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x4403f9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffca93ab3b8 EFLAGS: 00000217 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403f9 RDX: 0000000000000001 RSI: 0000000020000a80 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000401c80 R13: 0000000000401d10 R14: 0000000000000000 R15: 0000000000000000 Local variable description: ----fl4_stack@udp_sendmsg Variable was created at: udp_sendmsg+0x105/0x3cd0 net/ipv4/udp.c:904 udpv6_sendmsg+0x12e2/0x4cf0 net/ipv6/udp.c:1196 ==================================================================