Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3

2021-02-10 Thread Steven Rostedt
On Wed, 10 Feb 2021 19:23:38 +0100 Eric Dumazet wrote: > >> The problem here is a kmalloc failure injection into > >> tracepoint_probe_unregister, but the error is ignored -- so the bpf > >> program is freed even though the tracepoint is never unregistered. > >> > >> I have a first pass at a

Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3

2021-02-10 Thread Eric Dumazet
On 11/13/20 5:08 PM, Yonghong Song wrote: > > > On 11/12/20 9:37 PM, Matt Mullins wrote: >> On Wed, Nov 11, 2020 at 03:57:50PM +0100, Dmitry Vyukov wrote: >>> On Mon, Nov 2, 2020 at 12:54 PM syzbot >>> wrote: Hello, syzbot found the following issue on: HEAD

Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3

2020-11-13 Thread Yonghong Song
On 11/12/20 9:37 PM, Matt Mullins wrote: On Wed, Nov 11, 2020 at 03:57:50PM +0100, Dmitry Vyukov wrote: On Mon, Nov 2, 2020 at 12:54 PM syzbot wrote: Hello, syzbot found the following issue on: HEAD commit:080b6f40 bpf: Don't rely on GCC __attribute__((optimize)) .. git tree:

Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3

2020-11-12 Thread Matt Mullins
On Wed, Nov 11, 2020 at 03:57:50PM +0100, Dmitry Vyukov wrote: > On Mon, Nov 2, 2020 at 12:54 PM syzbot > wrote: > > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit:080b6f40 bpf: Don't rely on GCC __attribute__((optimize)) .. > > git tree: bpf > > console

Re: KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3

2020-11-11 Thread Dmitry Vyukov
On Mon, Nov 2, 2020 at 12:54 PM syzbot wrote: > > Hello, > > syzbot found the following issue on: > > HEAD commit:080b6f40 bpf: Don't rely on GCC __attribute__((optimize)) .. > git tree: bpf > console output: https://syzkaller.appspot.com/x/log.txt?x=1089d37c50 > kernel config:

KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3

2020-11-02 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:080b6f40 bpf: Don't rely on GCC __attribute__((optimize)) .. git tree: bpf console output: https://syzkaller.appspot.com/x/log.txt?x=1089d37c50 kernel config: https://syzkaller.appspot.com/x/.config?x=58a4ca757d776bfe