syzbot


general protection fault in bpf_clone_redirect

Status: auto-closed as invalid on 2020/03/12 14:54
Reported-by: syzbot+bbcb3d7ab847ea79ba53@syzkaller.appspotmail.com
First crash: 972d, last: 954d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-414 general protection fault in bpf_clone_redirect 1 1359d 1359d 0/1 auto-closed as invalid on 2019/04/02 02:03
android-414 general protection fault in bpf_clone_redirect (2) C 2 1029d 1028d 0/1 public: reported C repro on 2019/08/30 23:43

Sample crash report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 18727 Comm: syz-executor.4 Not tainted 4.14.153 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880815fa200 task.stack: ffff88805c088000
RIP: 0010:dev_net include/linux/netdevice.h:2015 [inline]
RIP: 0010:____bpf_clone_redirect net/core/filter.c:1768 [inline]
RIP: 0010:bpf_clone_redirect+0x6c/0x2f0 net/core/filter.c:1759
RSP: 0018:ffff88805c08f9a8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888050e1bfc0 RCX: ffffc90012ca4000
RDX: 00000000000000b0 RSI: ffffffff84dafbf1 RDI: 0000000000000580
RBP: ffff88805c08f9e8 R08: 0000000000000000 R09: ffff8880815faaa0
R10: ffff8880815faa80 R11: ffff8880815fa200 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000014 R15: ffffc90000002030
FS:  00007f093afe9700(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020200000 CR3: 000000009b670000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 bpf_prog_3c8dfff8b3098609+0xe30/0x1000
Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 89 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 10 49 8d bd 80 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 49 02 00 00 49 8b bd 80 05 00 00 44 89 f6 e8 
RIP: dev_net include/linux/netdevice.h:2015 [inline] RSP: ffff88805c08f9a8
RIP: ____bpf_clone_redirect net/core/filter.c:1768 [inline] RSP: ffff88805c08f9a8
RIP: bpf_clone_redirect+0x6c/0x2f0 net/core/filter.c:1759 RSP: ffff88805c08f9a8
---[ end trace b7244ee644eb0d80 ]---

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2019/11/13 14:53 linux-4.14.y 4762bcd451a9 048f2d49 .config log report
ci2-linux-4-14 2019/10/26 11:10 linux-4.14.y b98aebd29824 413926c5 .config log report