diff mbox series

[59/66] bsd-user: unlock the start of the cmsg

Message ID 20260515-misc-2026q2-v1-59-5438ca41b27a@bsdimp.com
State New
Headers show
Series bsd-user: Upstream most of the remaining system calls | expand

Commit Message

Warner Losh May 15, 2026, 9:19 p.m. UTC 
We move target_cmsg, but save target_cmsg_start as the beginning
point. We need to unlock that, not the moved pointer.

Signed-off-by: Warner Losh <imp@bsdimp.com>
---
 bsd-user/freebsd/os-socket.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/bsd-user/freebsd/os-socket.c b/bsd-user/freebsd/os-socket.c
index 968929c2fd..8eb728240d 100644
--- a/bsd-user/freebsd/os-socket.c
+++ b/bsd-user/freebsd/os-socket.c
@@ -91,7 +91,7 @@  abi_long t2h_freebsd_cmsg(struct msghdr *msgh,
         target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
                                          target_cmsg_start);
     }
-    unlock_user(target_cmsg, target_cmsg_addr, 0);
+    unlock_user(target_cmsg_start, target_cmsg_addr, 0);
 the_end:
     msgh->msg_controllen = space;
     return 0;
@@ -227,9 +227,8 @@  abi_long h2t_freebsd_cmsg(struct target_msghdr *target_msgh,
         target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg,
                                          target_cmsg_start);
     }
-    unlock_user(target_cmsg, target_cmsg_addr, space);
+    unlock_user(target_cmsg_start, target_cmsg_addr, space);
 the_end:
     target_msgh->msg_controllen = tswap32(space);
     return 0;
 }
-