Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run7

2021-01-23 Thread Yonghong Song
I can reproduce the issue with C reproducer. This is an old known issue though and the failure is due to memory allocation failure in tracepoint_probe_unregister(). [ 40.807849][ T8287] Call Trace: [ 40.808201][ T8287] dump_stack+0x77/0x97 [ 40.808695][ T8287] should_fail.cold.6+0x32

Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run7

2021-01-20 Thread syzbot
syzbot has bisected this issue to: commit 8b401f9ed2441ad9e219953927a842d24ed051fc Author: Yonghong Song Date: Thu May 23 21:47:45 2019 + bpf: implement bpf_send_signal() helper bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=123408e750 start commit: 7d68e382 bpf: P

Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run7

2021-01-20 Thread syzbot
syzbot has found a reproducer for the following issue on: HEAD commit:7d68e382 bpf: Permit size-0 datasec git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=1418c3c750 kernel config: https://syzkaller.appspot.com/x/.config?x=e0c7843b8af99dff dashboard link:

KASAN: vmalloc-out-of-bounds Read in bpf_trace_run7

2021-01-05 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:00a279e4 selftests/bpf: Add tests for user- and non-CO-RE .. git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=11b1fc1f50 kernel config: https://syzkaller.appspot.com/x/.config?x=2eb8bc0ec06304ce das