On Sun, 29 Dec 2024 19:52:32 +0100,
Al Viro wrote:
>
> 3d3f43fab4cf "ALSA: compress_offload: improve file descriptors installation for dma-buf"
> fixed some of descriptor races in snd_compr_task_new(), but there's a couple more left.
>
> We need to grab the references to dmabuf before moving them into descriptor table -
> trying to do that by descriptor afterwards might end up getting a different object,
> with a dangling reference left in task->{input,output}
>
> Fixes: 3d3f43fab4cf "ALSA: compress_offload: improve file descriptors installation for dma-buf"
> Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Applied now. Thanks!
Takashi
- References:
- [CFT][PATCH] fix descriptor uses in sound/core/compress_offload.c
- From: Al Viro
- Re: [CFT][PATCH] fix descriptor uses in sound/core/compress_offload.c
- From: Jaroslav Kysela
- Re: [CFT][PATCH] fix descriptor uses in sound/core/compress_offload.c
- From: Al Viro
- Re: [CFT][PATCH] fix descriptor uses in sound/core/compress_offload.c
- From: Al Viro
- Re: [CFT][PATCH] fix descriptor uses in sound/core/compress_offload.c
- From: Takashi Iwai
- [PATCH] fix remaining descriptor races in sound/core/compress_offload.c
- From: Al Viro
- [CFT][PATCH] fix descriptor uses in sound/core/compress_offload.c
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