Messages in this thread | | | From | "Daniel Xu" <> | Subject | Re: [selftest/bpf] b83590ee1a: BUG:KASAN:slab-out-of-bounds_in_l | Date | Wed, 11 Nov 2020 14:43:31 -0800 |
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Hi Daniel,
On Mon Nov 9, 2020 at 8:54 AM PST, Daniel Borkmann wrote: > Hi Daniel, > > On 11/9/20 3:54 PM, kernel test robot wrote: > > Greeting, > > > > FYI, we noticed the following commit (built with gcc-9): > > > > commit: b83590ee1add052518603bae607b0524632b7793 ("[PATCH bpf v3 2/2] selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NUL") > > url: https://github.com/0day-ci/linux/commits/Daniel-Xu/Fix-bpf_probe_read_user_str-overcopying/20201106-033210 > > base: https://git.kernel.org/cgit/linux/kernel/git/bpf/bpf.git master > > I've tossed them from the tree for now as it looks like these are adding > regressions > for regular strncpy_from_user() calls, please take a look. > > Thanks!
Sorry about the KASAN issue.
I spent a day reproing. The kasan warnings seem a bit misleading but I think I have a fix. I'll put a v5 shortly. I'll see if any of the bots find errors on it.
Thanks, Daniel
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