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(parent: ad9852a) | patch
netfilter: nf_log: fix uninit read in nf_log_proc_dostring
authorJann Horn <jannh@google.com>
Wed, 20 Jun 2018 16:33:45 +0000 (18:33 +0200)
committerPablo Neira Ayuso <pablo@netfilter.org>
Tue, 26 Jun 2018 14:48:23 +0000 (16:48 +0200)
commitdffd22aed2aa1e804bccf19b30a421e89ee2ae61
tree527ee8d7048c5e0df7398273a7bac5cac5bda6c5tree
parentad9852af97587b8abe8102f9ddcb05c9769656f6commit | diff
netfilter: nf_log: fix uninit read in nf_log_proc_dostring

When proc_dostring() is called with a non-zero offset in strict mode, it
doesn't just write to the ->data buffer, it also reads. Make sure it
doesn't read uninitialized data.

Fixes: c6ac37d8d884 ("netfilter: nf_log: fix error on write NONE to [...]")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
net/netfilter/nf_log.c diff | blob | history
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