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Ian Rogers 25eac390c4 perf bpf-event: Fix use-after-free in synthesis [ Upstream commit `d7b67dd6f9` ] Calls to perf_env__insert_bpf_prog_info may fail as a sideband thread may already have inserted the bpf_prog_info. Such failures may yield info_linear being freed which then causes use-after-free issues with the internal bpf_prog_info info struct. Make it so that perf_env__insert_bpf_prog_info trigger early non-error paths and fix the use-after-free in perf_event__synthesize_one_bpf_prog. Add proper return error handling to perf_env__add_bpf_info (that calls perf_env__insert_bpf_prog_info) and propagate the return value in its callers. Closes: https://lore.kernel.org/lkml/CAP-5=fWJQcmUOP7MuCA2ihKnDAHUCOBLkQFEkQES-1ZZTrgf8Q@mail.gmail.com/ Fixes: `03edb7020b` ("perf bpf: Fix two memory leakages when calling perf_env__insert_bpf_prog_info()") Reviewed-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250902181713.309797-2-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2025-09-09 18:58:25 +02:00
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block	block: add a queue_limits_commit_update_frozen helper	2025-09-09 18:58:24 +02:00
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drivers	drm/bridge: ti-sn65dsi86: fix REFCLK setting	2025-09-09 18:58:25 +02:00
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include	block: add a queue_limits_commit_update_frozen helper	2025-09-09 18:58:24 +02:00
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sound	ALSA: hda/realtek: Fix headset mic for TongFang X6[AF]R5xxY	2025-09-09 18:58:23 +02:00
tools	perf bpf-event: Fix use-after-free in synthesis	2025-09-09 18:58:25 +02:00
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README

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 reStructuredText 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.