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[ Upstream commit7f57f8165c] The function pfkey_send_acquire may race with pfkey_register (which could even be in a different name space). This may result in a buffer overrun. Allocating the maximum amount of memory that could be used prevents this. Reported-by: syzbot+1e9af9185d8850e2c2fa@syzkaller.appspotmail.com Fixes:1da177e4c3("Linux-2.6.12-rc2") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.