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Jon Maloy
b714295abc
When an item of struct tipc_subscription is created, we fail to initialize the two lists aggregated into the struct. This has so far never been a problem, since the items are just added to a root object by list_add(), which does not require the addee list to be pre-initialized. However, syzbot is provoking situations where this addition fails, whereupon the attempted removal if the item from the list causes a crash. This problem seems to always have been around, despite that the code for creating this object was rewritten in commit242e82cc95("tipc: collapse subscription creation functions"), which is still in net-next. We fix this for that commit by initializing the two lists properly. Fixes:242e82cc95("tipc: collapse subscription creation functions") Reported-by: syzbot+0bb443b74ce09197e970@syzkaller.appspotmail.com Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.