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Re: [PATCH 2/5] fix copyin/outmsg header for ! USER32
From: |
Samuel Thibault |
Subject: |
Re: [PATCH 2/5] fix copyin/outmsg header for ! USER32 |
Date: |
Mon, 27 Feb 2023 22:36:04 +0100 |
User-agent: |
NeoMutt/20170609 (1.8.3) |
Applied, thanks!
Luca Dariz, le lun. 27 févr. 2023 21:44:58 +0100, a ecrit:
> * 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
>
>
--
Samuel
---
Pour une évaluation indépendante, transparente et rigoureuse !
Je soutiens la Commission d'Évaluation de l'Inria.
- [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, 2023/02/27
- Re: [PATCH 2/5] fix copyin/outmsg header for ! USER32,
Samuel Thibault <=
- [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
Re: [PATCH 5/5] x86_64: add 64-bit syscall entry point, Sergey Bugaev, 2023/02/28