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[PATCH 2/5] fix copyin/outmsg header for ! USER32
From: |
Luca Dariz |
Subject: |
[PATCH 2/5] fix copyin/outmsg header for ! USER32 |
Date: |
Mon, 27 Feb 2023 21:44:58 +0100 |
* x86_64/copy_user.c: fix copyin/out, we already have a pointer to
user/kernel buffers
---
x86_64/copy_user.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/x86_64/copy_user.c b/x86_64/copy_user.c
index dd9fe2d7..86d23525 100644
--- a/x86_64/copy_user.c
+++ b/x86_64/copy_user.c
@@ -192,7 +192,7 @@ int copyinmsg (const void *userbuf, void *kernelbuf, const
size_t usize)
/* The 64 bit interface ensures the header is the same size, so it does not
need any resizing. */
_Static_assert(sizeof(mach_msg_header_t) == sizeof(mach_msg_user_header_t),
"mach_msg_header_t and mach_msg_user_header_t expected to be
of the same size");
- if (copyin(&umsg, &kmsg, sizeof(mach_msg_header_t)))
+ if (copyin(umsg, kmsg, sizeof(mach_msg_header_t)))
return 1;
#endif
@@ -290,7 +290,7 @@ int copyoutmsg (const void *kernelbuf, void *userbuf, const
size_t ksize)
sizeof(kmsg->msgh_seqno) + sizeof(kmsg->msgh_id)))
return 1;
#else
- if (copyout(&kmsg, &umsg, sizeof(mach_msg_header_t)))
+ if (copyout(kmsg, umsg, sizeof(mach_msg_header_t)))
return 1;
#endif /* USER32 */
--
2.30.2
- [PATCH 0/5] basic syscall support on x86_64, Luca Dariz, 2023/02/27
- [PATCH 4/5] x86_64: fix user trap during syscall with an invalid user stack, Luca Dariz, 2023/02/27
- [PATCH 3/5] fix port name copyin, Luca Dariz, 2023/02/27
- [PATCH 1/5] x86_64: allow compilation if ! USER32, Luca Dariz, 2023/02/27
- [PATCH 2/5] fix copyin/outmsg header for ! USER32,
Luca Dariz <=
- [PATCH 5/5] x86_64: add 64-bit syscall entry point, Luca Dariz, 2023/02/27
- Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Samuel Thibault, 2023/02/27
- Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Luca Dariz, 2023/02/28
- Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Samuel Thibault, 2023/02/28
- Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Sergey Bugaev, 2023/02/28
- Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Samuel Thibault, 2023/02/28
- Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Sergey Bugaev, 2023/02/28
- Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Samuel Thibault, 2023/02/28
- Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Sergey Bugaev, 2023/02/28