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0799678349
Taehee Yoo says: ==================== gtp: fix several bugs This patch series fixes several bugs in the gtp module. First patch fixes suspicious RCU usage. The problem is to use rcu_dereference_sk_user_data() outside of RCU read critical section. Second patch fixes use-after-free. gtp_encap_destroy() is called twice. gtp_encap_destroy() use both gtp->sk0 and gtp->sk1u. these pointers can be freed in gtp_encap_destroy(). So, gtp_encap_destroy() should avoid using freed sk pointer. Third patch removes duplicate code in gtp_dellink(). gtp_dellink() calls gtp_encap_disable() twice. So, remove one of them. Fourth patch fixes usage of GFP_KERNEL. GFP_KERNEL can not be used in RCU read critical section. This patch make ipv4_pdp_add() to use GFP_ATOMIC instead of GFP_KERNEL. Fifth patch fixes use-after-free in gtp_newlink(). gtp_newlink() uses gtp_net which would be destroyed by the __exit_net routine. So, gtp_newlink should not be called after the __exit_net routine. Sixth patch adds missing error handling routine in gtp_encap_enable(). gtp_encap_enable() will fail, if invalid role value is sent from user-space. if so, gtp_encap_enable() should execute error handling routine. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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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.