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Change History

In the Linux kernel, the following vulnerability has been resolved:

tipc: check for null after calling kmemdup

kmemdup can return a null pointer so need to check for it, otherwise
the null key will be dereferenced later in tipc_crypto_key_xmit as
can be seen in the trace [1].


[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58

kernel.org https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916 [No types assigned]

kernel.org https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10 [No types assigned]

kernel.org https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9 [No types assigned]