diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-04-24 08:43:38 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-04-27 02:07:40 -0400 |
| commit | 32927393dc1ccd60fb2bdc05b9e8e88753761469 (patch) | |
| tree | c488a5564cdde7594c953219a98e22fb4865c812 /security/min_addr.c | |
| parent | f461d2dcd511c020a26d4d791fae595c65ed09b6 (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/min_addr.c')
| -rw-r--r-- | security/min_addr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/security/min_addr.c b/security/min_addr.c index 94d2b0cf0e7b..88c9a6a21f47 100644 --- a/security/min_addr.c +++ b/security/min_addr.c @@ -30,7 +30,7 @@ static void update_mmap_min_addr(void) * calls update_mmap_min_addr() so non MAP_FIXED hints get rounded properly */ int mmap_min_addr_handler(struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret; |