On Mon, Jul 13, 2020 at 6:29 PM Peilin Ye <yepeilin.cs@xxxxxxxxx> wrote: > > Prevent __btf_resolve_helper_id() from dereferencing `btf_vmlinux` > as NULL. This patch fixes the following syzbot bug: > > https://syzkaller.appspot.com/bug?id=5edd146856fd513747c1992442732e5a0e9ba355 > > Reported-by: syzbot+ee09bda7017345f1fbe6@xxxxxxxxxxxxxxxxxxxxxxxxx > Signed-off-by: Peilin Ye <yepeilin.cs@xxxxxxxxx> > --- > Thank you for reviewing my patch! I am new to Linux kernel development; would > the log message and errno be appropriate for this case? I think it's good enough, thanks for the fix. Acked-by: Andrii Nakryiko <andriin@xxxxxx> > > Change in v2: > - Split NULL and IS_ERR cases. > > kernel/bpf/btf.c | 5 +++++ > 1 file changed, 5 insertions(+) > [...]
