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Martin KaFai Lau says: ==================== bpf: Fix backward progress bug in bpf_iter_udp From: Martin KaFai Lau <martin.lau@kernel.org> This patch set fixes an issue in bpf_iter_udp that makes backward progress and prevents the user space process from finishing. There is a test at the end to reproduce the bug. Please see individual patches for details. v3: - Fixed the iter_fd check and local_port check in the patch 3 selftest. (Yonghong) - Moved jhash2 to test_jhash.h in the patch 3. (Yonghong) - Added explanation in the bucket selection in the patch 3. (Yonghong) v2: - Added patch 1 to fix another bug that goes back to the previous bucket - Simplify the fix in patch 2 to always reset iter->offset to 0 - Add a test case to close all udp_sk in a bucket while in the middle of the iteration. ==================== Link: https://lore.kernel.org/r/20240112190530.3751661-1-martin.lau@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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
``make pdfdocs``. The formatted documentation can also be read online at:
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.