Re: [PATCH bpf v7 0/2] Fix bpf_probe_read_user_str() overcopying

Hello: This series was applied to bpf/bpf.git (refs/heads/master): On Tue, 17 Nov 2020 12:05:44 -0800 you wrote: > 6ae08ae3dea2 ("bpf: Add probe_read_{user, kernel} and probe_read_{user, > kernel}_str helpers") introduced a subtle bug where > bpf_probe_read_user_str() would potentially copy a

[PATCH bpf v7 0/2] Fix bpf_probe_read_user_str() overcopying

6ae08ae3dea2 ("bpf: Add probe_read_{user, kernel} and probe_read_{user, kernel}_str helpers") introduced a subtle bug where bpf_probe_read_user_str() would potentially copy a few extra bytes after the NUL terminator. This issue is particularly nefarious when strings are used as map keys, as