diff options
| author | Joel Stanley <joel@jms.id.au> | 2020-08-04 10:58:32 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2020-08-04 10:58:36 +0300 |
| commit | 9524588381df213554a10d3661a9200a4b7f6db2 (patch) | |
| tree | a4d281b99dcd28b9a1d3077299c26a5671abff88 /net/ax25/af_ax25.c | |
| parent | 666e403461fd046b37bc95bba49e82ca6a758bea (diff) | |
| parent | 67da9e2c2b730b9b788ace749d22d769cf11ee2b (diff) | |
| download | linux-dev-5.7.tar.xz | |
Merge tag 'v5.7.12' into dev-5.7dev-5.7
This is the 5.7.12 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 fd91cd34f25e..dec3f35467c9 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; } |