syzbot

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)
random: sshd: uninitialized urandom read (32 bytes read)
WARNING: CPU: 0 PID: 4607 at mm/vmalloc.c:302 vmalloc_to_page+0x576/0x630 mm/vmalloc.c:302
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 4607 Comm: syz-executor252 Not tainted 4.17.0+ #20
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+0x185/0x1d0 lib/dump_stack.c:113
 panic+0x3d0/0x9b0 kernel/panic.c:184
 __warn+0x40f/0x580 kernel/panic.c:536
 report_bug+0x72a/0x880 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0x1c1/0x620 arch/x86/kernel/traps.c:298
 do_invalid_op+0x46/0x50 arch/x86/kernel/traps.c:317
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:999
RIP: 0010:vmalloc_to_page+0x576/0x630 mm/vmalloc.c:302
RSP: 0018:ffff88019448f968 EFLAGS: 00010293
RAX: ffffffff81aec6a6 RBX: 0000000000000000 RCX: ffff88018e398000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0000409380
RBP: ffff88019448f9d0 R08: ffffffff7fffffff R09: ffff8801939efa78
R10: 0000000000000000 R11: ffffffff88829a70 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88000ac346d0 R15: 0000000000000000
 vmalloc_to_page_or_null mm/kmsan/kmsan.c:1060 [inline]
 kmsan_get_shadow_address+0xce/0x3d0 mm/kmsan/kmsan.c:1679
 kmsan_copy_to_user+0x91/0x160 mm/kmsan/kmsan.c:1585
 copy_to_user include/linux/uaccess.h:184 [inline]
 inet_gifconf+0x345/0x500 net/ipv4/devinet.c:1211
 dev_ifconf+0x2b8/0x4f0 net/core/dev_ioctl.c:78
 sock_do_ioctl+0x3a0/0x6c0 net/socket.c:971
 sock_ioctl+0x748/0xd10 net/socket.c:1081
 vfs_ioctl fs/ioctl.c:46 [inline]
 do_vfs_ioctl+0xcbd/0x24b0 fs/ioctl.c:686
 ksys_ioctl fs/ioctl.c:701 [inline]
 __do_sys_ioctl fs/ioctl.c:708 [inline]
 __se_sys_ioctl fs/ioctl.c:706 [inline]
 __x64_sys_ioctl+0x280/0x320 fs/ioctl.c:706
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x4400b9
RSP: 002b:00007ffca7cc6828 EFLAGS: 00000213 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400b9
RDX: 00000000200002c0 RSI: 0000004000008912 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401940
R13: 00000000004019d0 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..