All fixes are from previous patches sent by Weiming Shi, Zhang Cen, Kuniyuki and Sechang Lim, which have already been reviewed by me and John and Jakub.
https://lore.kernel.org/bpf/[email protected]/ https://lore.kernel.org/bpf/[email protected]/ https://lore.kernel.org/bpf/[email protected]/ https://lore.kernel.org/bpf/[email protected]/ https://lore.kernel.org/bpf/[email protected]/ https://lore.kernel.org/bpf/[email protected]/ The automated reviewer (sashiko) may still flag a few other potential issues on top of this series. After looking into them, they are either already covered by the patches here, or only reachable under very narrow conditions that require a specially crafted BPF program and an unusual sk_msg ring state, so they are not practical to trigger and are left out of this series. I'm collecting these fixes together because the same problems have been re-sent many times in slightly different forms, and I hope this series can be prioritized for merging so the duplicates can finally settle. With so many AI-generated patches floating around for these spots, leaving them unmerged just keeps wasting maintainer review cycles on the same issues. v2->v3: Target to bpf-next and carry Emil's reviewed-by tag. Reverse xmas tree style is used suggested by Cong. (not all code match reverse xmas tree due to variable dependency) v1->v2: fix problem when fix the conflict. Kuniyuki Iwashima (1): sockmap: Fix use-after-free in udp_bpf_recvmsg() Sechang Lim (2): bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check selftests/bpf: add test for bpf_msg_pop_data() overflow Weiming Shi (3): bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data() bpf, sockmap: Fix wrong rsge offset in bpf_msg_push_data() bpf, sockmap: zero-initialize pages allocated in bpf_msg_push_data Zhang Cen (1): bpf, sockmap: keep sk_msg copy state in sync net/core/filter.c | 99 +++++++++++++++++-- net/ipv4/udp_bpf.c | 9 ++ .../selftests/bpf/prog_tests/sockmap_basic.c | 48 +++++++++ .../bpf/progs/test_sockmap_msg_pop_data.c | 27 +++++ 4 files changed, 174 insertions(+), 9 deletions(-) create mode 100644 tools/testing/selftests/bpf/progs/test_sockmap_msg_pop_data.c -- 2.43.0
