[PATCH iproute2] ss: fix vsock port filter

[Luigi Leonardi <leonardi@redhat.com>]

parse_hostcond() uses get_u32() to parse the vsock port into the
aafilter.port field, which is a long. On 64-bit systems, get_u32()
only writes the lower 32 bits, leaving the upper 32 bits set from
the -1 initialization. This causes the port comparison
"a->port != s->rport" in run_ssfilter() to always fail, since the
corrupted long value never matches the int rport.

Fix by using get_long() instead, consistent with how AF_PACKET and
AF_NETLINK handle the same field.

Fixes: c759116a0b2b ("ss: add AF_VSOCK support")
Signed-off-by: Luigi Leonardi <leonardi@redhat.com>
---
 misc/ss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/misc/ss.c b/misc/ss.c
index 14e9f27a..6e3321ac 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -2323,7 +2323,7 @@ void *parse_hostcond(char *addr, bool is_port)
 		port = find_port(addr, is_port);
 
 		if (port && strcmp(port, "*") &&
-		    get_u32((__u32 *)&a.port, port, 0))
+		    get_long(&a.port, port, 0))
 			return NULL;
 
 		if (!is_port && addr[0] && strcmp(addr, "*")) {

---
base-commit: e0517e612199cacaf2dc4d54cbed52deec640c94
change-id: 20260421-fix_vsock-40c2ef4928aa

Best regards,
-- 
Luigi Leonardi <leonardi@redhat.com>