| Message ID | 20250205131153.476278-16-ps.report@gmx.net (mailing list archive) |
|---|---|
| State | New |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | Some pktgen fixes/improvments | expand |
diff --git a/net/core/pktgen.c b/net/core/pktgen.c index cb3b732fd0a3..a46eb20edf6c 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -821,6 +821,9 @@ static long num_arg(const char __user *user_buffer, unsigned long maxlen, if ((c >= '0') && (c <= '9')) { *num *= 10; *num += c - '0'; + } else if (i == 0) { + /* no valid character parsed, error out */ + return -EINVAL; } else break; }
In num_arg() error out in case no valid character is parsed. Signed-off-by: Peter Seiderer <ps.report@gmx.net> --- Changes v3 -> v4 - new patch (factored out of patch 'net: pktgen: fix access outside of user given buffer in pktgen_if_write()') --- net/core/pktgen.c | 3 +++ 1 file changed, 3 insertions(+)