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.
Vitaliy Shevtsov
authored
It is possible to set both MONITOR_FLAG_COOK_FRAMES and MONITOR_FLAG_ACTIVE flags simultaneously on the same monitor interface from the userspace. This causes a sub-interface to be created with no IEEE80211_SDATA_IN_DRIVER bit set because the monitor interface is in the cooked state and it takes precedence over all other states. When the interface is then being deleted the kernel calls WARN_ONCE() from check_sdata_in_driver() because of missing that bit. Fix this by rejecting MONITOR_FLAG_COOK_FRAMES if it is set along with other flags. Found by Linux Verification Center (linuxtesting.org) with Syzkaller. Fixes: 66f7ac50 ("nl80211: Add monitor interface configuration flags") Cc: stable@vger.kernel.org Reported-by:<syzbot+2e5c1e55b9e5c28a3da7@syzkaller.appspotmail.com> Closes: https://syzkaller.appspot.com/bug?extid=2e5c1e55b9e5c28a3da7 Signed-off-by:
Vitaliy Shevtsov <v.shevtsov@mt-integration.ru> Link: https://patch.msgid.link/20250131152657.5606-1-v.shevtsov@mt-integration.ru Signed-off-by:
Johannes Berg <johannes.berg@intel.com>