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Diffstat (limited to 'net/compat.c')
-rw-r--r--net/compat.c45
1 files changed, 24 insertions, 21 deletions
diff --git a/net/compat.c b/net/compat.c
index f7084780a8f8..959d1c51826d 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -358,7 +358,7 @@ static int do_set_sock_timeout(struct socket *sock, int level,
if (optlen < sizeof(*up))
return -EINVAL;
- if (!access_ok(VERIFY_READ, up, sizeof(*up)) ||
+ if (!access_ok(up, sizeof(*up)) ||
__get_user(ktime.tv_sec, &up->tv_sec) ||
__get_user(ktime.tv_usec, &up->tv_usec))
return -EFAULT;
@@ -438,7 +438,7 @@ static int do_get_sock_timeout(struct socket *sock, int level, int optname,
if (!err) {
if (put_user(sizeof(*up), optlen) ||
- !access_ok(VERIFY_WRITE, up, sizeof(*up)) ||
+ !access_ok(up, sizeof(*up)) ||
__put_user(ktime.tv_sec, &up->tv_sec) ||
__put_user(ktime.tv_usec, &up->tv_usec))
err = -EFAULT;
@@ -467,12 +467,14 @@ int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp)
ctv = (struct compat_timeval __user *) userstamp;
err = -ENOENT;
sock_enable_timestamp(sk, SOCK_TIMESTAMP);
- tv = ktime_to_timeval(sk->sk_stamp);
+ tv = ktime_to_timeval(sock_read_timestamp(sk));
+
if (tv.tv_sec == -1)
return err;
if (tv.tv_sec == 0) {
- sk->sk_stamp = ktime_get_real();
- tv = ktime_to_timeval(sk->sk_stamp);
+ ktime_t kt = ktime_get_real();
+ sock_write_timestamp(sk, kt);
+ tv = ktime_to_timeval(kt);
}
err = 0;
if (put_user(tv.tv_sec, &ctv->tv_sec) ||
@@ -494,12 +496,13 @@ int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *usersta
ctv = (struct compat_timespec __user *) userstamp;
err = -ENOENT;
sock_enable_timestamp(sk, SOCK_TIMESTAMP);
- ts = ktime_to_timespec(sk->sk_stamp);
+ ts = ktime_to_timespec(sock_read_timestamp(sk));
if (ts.tv_sec == -1)
return err;
if (ts.tv_sec == 0) {
- sk->sk_stamp = ktime_get_real();
- ts = ktime_to_timespec(sk->sk_stamp);
+ ktime_t kt = ktime_get_real();
+ sock_write_timestamp(sk, kt);
+ ts = ktime_to_timespec(kt);
}
err = 0;
if (put_user(ts.tv_sec, &ctv->tv_sec) ||
@@ -587,8 +590,8 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
compat_alloc_user_space(sizeof(struct group_req));
u32 interface;
- if (!access_ok(VERIFY_READ, gr32, sizeof(*gr32)) ||
- !access_ok(VERIFY_WRITE, kgr, sizeof(struct group_req)) ||
+ if (!access_ok(gr32, sizeof(*gr32)) ||
+ !access_ok(kgr, sizeof(struct group_req)) ||
__get_user(interface, &gr32->gr_interface) ||
__put_user(interface, &kgr->gr_interface) ||
copy_in_user(&kgr->gr_group, &gr32->gr_group,
@@ -608,8 +611,8 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
sizeof(struct group_source_req));
u32 interface;
- if (!access_ok(VERIFY_READ, gsr32, sizeof(*gsr32)) ||
- !access_ok(VERIFY_WRITE, kgsr,
+ if (!access_ok(gsr32, sizeof(*gsr32)) ||
+ !access_ok(kgsr,
sizeof(struct group_source_req)) ||
__get_user(interface, &gsr32->gsr_interface) ||
__put_user(interface, &kgsr->gsr_interface) ||
@@ -628,7 +631,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
struct group_filter __user *kgf;
u32 interface, fmode, numsrc;
- if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
+ if (!access_ok(gf32, __COMPAT_GF0_SIZE) ||
__get_user(interface, &gf32->gf_interface) ||
__get_user(fmode, &gf32->gf_fmode) ||
__get_user(numsrc, &gf32->gf_numsrc))
@@ -638,7 +641,7 @@ int compat_mc_setsockopt(struct sock *sock, int level, int optname,
if (koptlen < GROUP_FILTER_SIZE(numsrc))
return -EINVAL;
kgf = compat_alloc_user_space(koptlen);
- if (!access_ok(VERIFY_WRITE, kgf, koptlen) ||
+ if (!access_ok(kgf, koptlen) ||
__put_user(interface, &kgf->gf_interface) ||
__put_user(fmode, &kgf->gf_fmode) ||
__put_user(numsrc, &kgf->gf_numsrc) ||
@@ -672,7 +675,7 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
return getsockopt(sock, level, optname, optval, optlen);
koptlen = compat_alloc_user_space(sizeof(*koptlen));
- if (!access_ok(VERIFY_READ, optlen, sizeof(*optlen)) ||
+ if (!access_ok(optlen, sizeof(*optlen)) ||
__get_user(ulen, optlen))
return -EFAULT;
@@ -682,14 +685,14 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
if (klen < GROUP_FILTER_SIZE(0))
return -EINVAL;
- if (!access_ok(VERIFY_WRITE, koptlen, sizeof(*koptlen)) ||
+ if (!access_ok(koptlen, sizeof(*koptlen)) ||
__put_user(klen, koptlen))
return -EFAULT;
/* have to allow space for previous compat_alloc_user_space, too */
kgf = compat_alloc_user_space(klen+sizeof(*optlen));
- if (!access_ok(VERIFY_READ, gf32, __COMPAT_GF0_SIZE) ||
+ if (!access_ok(gf32, __COMPAT_GF0_SIZE) ||
__get_user(interface, &gf32->gf_interface) ||
__get_user(fmode, &gf32->gf_fmode) ||
__get_user(numsrc, &gf32->gf_numsrc) ||
@@ -703,18 +706,18 @@ int compat_mc_getsockopt(struct sock *sock, int level, int optname,
if (err)
return err;
- if (!access_ok(VERIFY_READ, koptlen, sizeof(*koptlen)) ||
+ if (!access_ok(koptlen, sizeof(*koptlen)) ||
__get_user(klen, koptlen))
return -EFAULT;
ulen = klen - (sizeof(*kgf)-sizeof(*gf32));
- if (!access_ok(VERIFY_WRITE, optlen, sizeof(*optlen)) ||
+ if (!access_ok(optlen, sizeof(*optlen)) ||
__put_user(ulen, optlen))
return -EFAULT;
- if (!access_ok(VERIFY_READ, kgf, klen) ||
- !access_ok(VERIFY_WRITE, gf32, ulen) ||
+ if (!access_ok(kgf, klen) ||
+ !access_ok(gf32, ulen) ||
__get_user(interface, &kgf->gf_interface) ||
__get_user(fmode, &kgf->gf_fmode) ||
__get_user(numsrc, &kgf->gf_numsrc) ||
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-07 16:34:09 +0000