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Daniel Borkmann says:
====================
bpf 2022-08-10
We've added 23 non-merge commits during the last 7 day(s) which contain
a total of 19 files changed, 424 insertions(+), 35 deletions(-).
The main changes are:
1) Several fixes for BPF map iterator such as UAFs along with selftests, from Hou Tao.
2) Fix BPF syscall program's {copy,strncpy}_from_bpfptr() to not fault, from Jinghao Jia.
3) Reject BPF syscall programs calling BPF_PROG_RUN, from Alexei Starovoitov and YiFei Zhu.
4) Fix attach_btf_obj_id info to pick proper target BTF, from Stanislav Fomichev.
5) BPF design Q/A doc update to clarify what is not stable ABI, from Paul E. McKenney.
6) Fix BPF map's prealloc_lru_pop to not reinitialize, from Kumar Kartikeya Dwivedi.
7) Fix bpf_trampoline_put to avoid leaking ftrace hash, from Jiri Olsa.
8) Fix arm64 JIT to address sparse errors around BPF trampoline, from Xu Kuohai.
9) Fix arm64 JIT to use kvcalloc instead of kcalloc for internal program address
offset buffer, from Aijun Sun.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: (23 commits)
selftests/bpf: Ensure sleepable program is rejected by hash map iter
selftests/bpf: Add write tests for sk local storage map iterator
selftests/bpf: Add tests for reading a dangling map iter fd
bpf: Only allow sleepable program for resched-able iterator
bpf: Check the validity of max_rdwr_access for sock local storage map iterator
bpf: Acquire map uref in .init_seq_private for sock{map,hash} iterator
bpf: Acquire map uref in .init_seq_private for sock local storage map iterator
bpf: Acquire map uref in .init_seq_private for hash map iterator
bpf: Acquire map uref in .init_seq_private for array map iterator
bpf: Disallow bpf programs call prog_run command.
bpf, arm64: Fix bpf trampoline instruction endianness
selftests/bpf: Add test for prealloc_lru_pop bug
bpf: Don't reinit map value in prealloc_lru_pop
bpf: Allow calling bpf_prog_test kfuncs in tracing programs
bpf, arm64: Allocate program buffer using kvcalloc instead of kcalloc
selftests/bpf: Excercise bpf_obj_get_info_by_fd for bpf2bpf
bpf: Use proper target btf when exporting attach_btf_obj_id
mptcp, btf: Add struct mptcp_sock definition when CONFIG_MPTCP is disabled
bpf: Cleanup ftrace hash in bpf_trampoline_put
BPF: Fix potential bad pointer dereference in bpf_sys_bpf()
...
====================
Link: https://lore.kernel.org/r/20220810190624.10748-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
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https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.