BUG: unable to handle kernel paging request in bpf_prog_kallsyms_find
Status: fixed on 2019/09/06 20:45
Fix commit: c751798a bpf: fix use after free in prog symbol exposure
First crash: 306d, last: 231d
Bisection: introduced by (bisect log):

commit f4d7e40a5b7157e1329c3c5b10f60d8289fc2941
Author: Alexei Starovoitov <>
Date: Fri Dec 15 01:55:06 2017 +0000

  bpf: introduce function calls (verification)

Tree: bpf-next
Crash: WARNING in bpf_jit_free (log)
Repro: syz .config
Bisection: the bug occurs on the latest tested release
Tree: bpf-next
Crash: KASAN: use-after-free Read in rb_insert_color (log)
Repro: syz .config

Sample crash report:

All crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-bpf-next-kasan-gce 2018/11/18 16:52 bpf-next 592ee43f adf636a8 .config log report syz,,,
ci-upstream-bpf-next-kasan-gce 2019/02/01 12:26 bpf-next 1832f4ef 0c07abcf .config log report syz,,,,,,,,
ci-upstream-linux-next-kasan-gce-root 2018/11/18 17:33 linux-next 442b8cea adf636a8 .config log report syz,,,