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: use-after-free in do_general_protection+0x2ac/0x2f0 arch/x86/kernel/traps.c:538 Read of size 8 at addr ffff8801d7187398 by task syz-executor171/4544 CPU: 0 PID: 4544 Comm: syz-executor171 Not tainted 4.17.0-rc6+ #67 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: The buggy address belongs to the page: page:ffffea00075c61c0 count:0 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0x2fffc0000000000() raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff raw: 0000000000000000 ffffea00075c0101 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801d7187280: 00 00 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8801d7187300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff8801d7187380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff8801d7187400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8801d7187480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 4544 Comm: syz-executor171 Tainted: G B 4.17.0-rc6+ #67 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..