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authorChristoph Hellwig <hch@lst.de>2020-04-24 08:43:38 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2020-04-27 02:07:40 -0400
commit32927393dc1ccd60fb2bdc05b9e8e88753761469 (patch)
treec488a5564cdde7594c953219a98e22fb4865c812 /kernel/seccomp.c
parentf461d2dcd511c020a26d4d791fae595c65ed09b6 (diff)
sysctl: pass kernel pointers to ->proc_handler
Instead of having all the sysctl handlers deal with user pointers, which is rather hairy in terms of the BPF interaction, copy the input to and from userspace in common code. This also means that the strings are always NUL-terminated by the common code, making the API a little bit safer. As most handler just pass through the data to one of the common handlers a lot of the changes are mechnical. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/seccomp.c')
-rw-r--r--kernel/seccomp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 55a6184f5990..d653d8426de9 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -1776,7 +1776,7 @@ static void audit_actions_logged(u32 actions_logged, u32 old_actions_logged,
}
static int seccomp_actions_logged_handler(struct ctl_table *ro_table, int write,
- void __user *buffer, size_t *lenp,
+ void *buffer, size_t *lenp,
loff_t *ppos)
{
int ret;