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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 /security/apparmor
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 'security/apparmor')
-rw-r--r--security/apparmor/lsm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index b621ad74f54a..27e371b44dad 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -1696,7 +1696,7 @@ static int __init alloc_buffers(void)
#ifdef CONFIG_SYSCTL
static int apparmor_dointvec(struct ctl_table *table, int write,
- void __user *buffer, size_t *lenp, loff_t *ppos)
+ void *buffer, size_t *lenp, loff_t *ppos)
{
if (!policy_admin_capable(NULL))
return -EPERM;