f5ebcab25b
JIRA: https://issues.redhat.com/browse/RHEL-101938 commit cc72b72073ac982a954d3b43519ca1c28f03c27c Author: Masami Hiramatsu (Google) <mhiramat@kernel.org> Date: Sat May 28 00:55:39 2022 +0900 tracing/kprobes: Check whether get_kretprobe() returns NULL in kretprobe_dispatcher() There is a small chance that get_kretprobe(ri) returns NULL in kretprobe_dispatcher() when another CPU unregisters the kretprobe right after __kretprobe_trampoline_handler(). To avoid this issue, kretprobe_dispatcher() checks the get_kretprobe() return value again. And if it is NULL, it returns soon because that kretprobe is under unregistering process. This issue has been introduced when the kretprobe is decoupled from the struct kretprobe_instance by commit |
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| fs | ||
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| init | ||
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| kernel | ||
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| redhat | ||
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| tools | ||
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| COPYING | ||
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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 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.