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: unable to handle kernel paging request at ffff87fe6ebd6c44 PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 4479 Comm: syz-executor447 Not tainted 4.17.0+ #8 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:predicate_parse kernel/trace/trace_events_filter.c:563 [inline] RIP: 0010:process_preds+0x42ed/0x5060 kernel/trace/trace_events_filter.c:1508 RSP: 0018:ffff8801976ff8f0 EFLAGS: 00010246 RAX: ffff8801a4932e40 RBX: ffff87fe6ebd6c44 RCX: ffff880000000000 RDX: ffff8801a4934e24 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 RBP: ffff8801976ffad0 R08: 0000000000000094 R09: 0000000000000002 R10: 0000000000000002 R11: 0000000000000000 R12: fffffffcca2a3e00 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00000000006fb880(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff87fe6ebd6c44 CR3: 000000019a286000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: create_filter kernel/trace/trace_events_filter.c:1716 [inline] ftrace_profile_set_filter+0x2aa/0x6a0 kernel/trace/trace_events_filter.c:2041 perf_event_set_filter kernel/events/core.c:9079 [inline] _perf_ioctl kernel/events/core.c:5059 [inline] perf_ioctl+0x1ca8/0x5870 kernel/events/core.c:5110 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+0x44/0xa9 RIP: 0033:0x43fdb9 RSP: 002b:00007ffcf45df3e8 EFLAGS: 00000213 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdb9 RDX: 0000000020000040 RSI: 0000000040082406 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000213 R12: 00000000004016e0 R13: 0000000000401770 R14: 0000000000000000 R15: 0000000000000000 Code: 2c 44 89 b4 24 b0 00 00 00 8b 02 89 44 24 08 49 c1 e4 04 4c 0b 6c 24 68 48 8b 84 24 88 00 00 00 4a 8d 5c 20 04 0f 85 a5 00 00 00 <44> 8b 33 48 89 df e8 e8 2c 4d 00 8b 00 41 09 c7 8b 5c 24 30 74 RIP: predicate_parse kernel/trace/trace_events_filter.c:563 [inline] RSP: ffff8801976ff8f0 RIP: process_preds+0x42ed/0x5060 kernel/trace/trace_events_filter.c:1508 RSP: ffff8801976ff8f0 CR2: ffff87fe6ebd6c44 ---[ end trace 51b1602f202978e7 ]---