syzbot


BUG: sleeping function called from invalid context in do_user_addr_fault (2)
Status: upstream: reported syz repro on 2020/12/25 13:45
Reported-by: syzbot+6ce719ff413f52e0a0f2@syzkaller.appspotmail.com
First crash: 34d, last: 1d12h

Cause bisection: introduced by (bisect log) :
commit 64b59025c15b244c0954cf52b24fbabfcf5ed8f6
Author: David Ahern <dsahern@kernel.org>
Date: Fri May 29 22:07:14 2020 +0000

  xdp: Add xdp_txq_info to xdp_buff

Crash: BUG: unable to handle kernel NULL pointer dereference in bpf_prog_ADDR (log)
Repro: syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: sleeping function called from invalid context in do_user_addr_fault syz inconclusive done 10 138d 217d 0/17 closed as dup on 2020/09/02 22:06

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info
ci-upstream-net-this-kasan-gce 2021/01/22 18:41 net 35c715c3 04201c06 .config log report syz
Crashes (11):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-bpf-kasan-gce 2021/01/23 17:26 bpf b9557caa 52e37319 .config log report syz andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-net-this-kasan-gce 2021/01/23 17:22 net 0607a2cd 52e37319 .config log report syz andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-net-kasan-gce 2021/01/23 18:34 net-next 59a49d96 52e37319 .config log report syz andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-bpf-next-kasan-gce 2021/01/23 16:40 bpf-next 6e66fbb1 52e37319 .config log report syz andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-net-this-kasan-gce 2020/12/21 14:37 net fec6079b 04201c06 .config log report syz andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-bpf-kasan-gce 2020/12/21 14:11 bpf d467d80d 04201c06 .config log report syz andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-bpf-next-kasan-gce 2020/12/21 16:41 bpf-next 3db1a3fa 04201c06 .config log report syz andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-net-kasan-gce 2020/12/21 14:39 net-next 3db1a3fa 04201c06 .config log report syz andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-kasan-gce-selinux-root 2020/12/23 01:42 upstream 614cb589 04201c06 .config log report info adobriyan@gmail.com, akpm@linux-foundation.org, gustavoars@kernel.org, ioanna-maria.alifieraki@canonical.com, linux-kernel@vger.kernel.org, manfred@colorfullife.com
ci-upstream-kasan-gce-selinux-root 2020/12/23 01:42 upstream 614cb589 04201c06 .config log report info adobriyan@gmail.com, akpm@linux-foundation.org, gustavoars@kernel.org, herton@redhat.com, ioanna-maria.alifieraki@canonical.com, linux-kernel@vger.kernel.org, manfred@colorfullife.com
ci-upstream-bpf-kasan-gce 2020/12/21 13:43 bpf d467d80d 04201c06 .config log report info andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com