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)
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BUG: KASAN: use-after-free in ____bpf_csum_update net/core/filter.c:1907 [inline]
BUG: KASAN: use-after-free in bpf_csum_update+0xb4/0xc0 net/core/filter.c:1901
Read of size 1 at addr ffff8801ad062f10 by task syz-executor354/4488

CPU: 1 PID: 4488 Comm: syz-executor354 Not tainted 4.17.0-rc6+ #29
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+0x1b9/0x294 lib/dump_stack.c:113
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:430
 ____bpf_csum_update net/core/filter.c:1907 [inline]
 bpf_csum_update+0xb4/0xc0 net/core/filter.c:1901

The buggy address belongs to the page:
page:ffffea0006b41880 count:0 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0x2fffc0000000000()
raw: 02fffc0000000000 0000000000000000 0000000000000000 00000000ffffffff
raw: ffffea0006b41820 ffffea0006b671a0 0000000000000000 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801ad062e00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8801ad062e80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff8801ad062f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                         ^
 ffff8801ad062f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff8801ad063000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================