diff options
| author | Joel Stanley <joel@jms.id.au> | 2020-08-10 07:07:46 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2020-08-10 07:07:49 +0300 |
| commit | 4789fd48a313d36fe6b8fc1da5e0788f5ea074cb (patch) | |
| tree | 2c8c27b52f0e38abb7416ce81b04c3b85511b694 /net/ax25/af_ax25.c | |
| parent | 8a9b346382056b52cd7ff141ae9f15a0fcfeb13d (diff) | |
| parent | d9939285fc818425ae92bd99f8c97b6b9ef3bb88 (diff) | |
| download | linux-dev-5.4.tar.xz | |
Merge tag 'v5.4.57' into dev-5.4dev-5.4
This is the 5.4.57 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'net/ax25/af_ax25.c')
| -rw-r--r-- | net/ax25/af_ax25.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index e5a3dc28116d..2fdb1b573e8c 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -1187,7 +1187,10 @@ static int __must_check ax25_connect(struct socket *sock, if (addr_len > sizeof(struct sockaddr_ax25) && fsa->fsa_ax25.sax25_ndigis != 0) { /* Valid number of digipeaters ? */ - if (fsa->fsa_ax25.sax25_ndigis < 1 || fsa->fsa_ax25.sax25_ndigis > AX25_MAX_DIGIS) { + if (fsa->fsa_ax25.sax25_ndigis < 1 || + fsa->fsa_ax25.sax25_ndigis > AX25_MAX_DIGIS || + addr_len < sizeof(struct sockaddr_ax25) + + sizeof(ax25_address) * fsa->fsa_ax25.sax25_ndigis) { err = -EINVAL; goto out_release; } @@ -1507,7 +1510,10 @@ static int ax25_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) struct full_sockaddr_ax25 *fsa = (struct full_sockaddr_ax25 *)usax; /* Valid number of digipeaters ? */ - if (usax->sax25_ndigis < 1 || usax->sax25_ndigis > AX25_MAX_DIGIS) { + if (usax->sax25_ndigis < 1 || + usax->sax25_ndigis > AX25_MAX_DIGIS || + addr_len < sizeof(struct sockaddr_ax25) + + sizeof(ax25_address) * usax->sax25_ndigis) { err = -EINVAL; goto out; } |