5127322f3e
JIRA: https://issues.redhat.com/browse/RHEL-92623 commit 8d7861ac507d23024c7d74b6cb59a9cca248bcb7 Author: Nam Cao <namcao@linutronix.de> Date: Fri Apr 11 09:37:17 2025 +0200 rv: Fix out-of-bound memory access in rv_is_container_monitor() When rv_is_container_monitor() is called on the last monitor in rv_monitors_list, KASAN yells: BUG: KASAN: global-out-of-bounds in rv_is_container_monitor+0x101/0x110 Read of size 8 at addr ffffffff97c7c798 by task setup/221 The buggy address belongs to the variable: rv_monitors_list+0x18/0x40 This is due to list_next_entry() is called on the last entry in the list. It wraps around to the first list_head, and the first list_head is not embedded in struct rv_monitor_def. Fix it by checking if the monitor is last in the list. Cc: stable@vger.kernel.org Cc: Gabriele Monaco <gmonaco@redhat.com> Fixes: cb85c660fcd4 ("rv: Add option for nested monitors and include sched") Link: https://lore.kernel.org/e85b5eeb7228bfc23b8d7d4ab5411472c54ae91b.1744355018.git.namcao@linutronix.de Signed-off-by: Nam Cao <namcao@linutronix.de> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Gabriele Monaco <gmonaco@redhat.com> |
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| fs | ||
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| kernel | ||
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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.