Re: [PATCH v2] dma-buf: acquire name lock before read/write dma_buf.name

2021-10-29 Thread Christian König
Am 29.10.21 um 04:15 schrieb guangming@mediatek.com: From: Guangming Cao On Fri, 2021-10-08 at 12:24 +0200, Christian König wrote: Am 08.10.21 um 09:54 schrieb guangming@mediatek.com: From: Guangming Cao Because dma-buf.name can be freed in func: "dma_buf_set_name", so, we need t

Re: [PATCH v2] dma-buf: acquire name lock before read/write dma_buf.name

2021-10-28 Thread guangming.cao
From: Guangming Cao On Fri, 2021-10-08 at 12:24 +0200, Christian König wrote: > Am 08.10.21 um 09:54 schrieb guangming@mediatek.com: > > From: Guangming Cao > > > > Because dma-buf.name can be freed in func: "dma_buf_set_name", > > so, we need to acquire lock first before we read/write dma_

Re: [PATCH v2] dma-buf: acquire name lock before read/write dma_buf.name

2021-10-12 Thread guangming.cao
From: Guangming Cao > Am 08.10.21 um 09:54 schrieb guangming@mediatek.com: > > From: Guangming Cao > > > > Because dma-buf.name can be freed in func: "dma_buf_set_name", > > so, we need to acquire lock first before we read/write dma_buf.name > > to prevent Use After Free(UAF) issue. > > > >

Re: [PATCH v2] dma-buf: acquire name lock before read/write dma_buf.name

2021-10-08 Thread Christian König
Am 08.10.21 um 09:54 schrieb guangming@mediatek.com: From: Guangming Cao Because dma-buf.name can be freed in func: "dma_buf_set_name", so, we need to acquire lock first before we read/write dma_buf.name to prevent Use After Free(UAF) issue. Signed-off-by: Guangming Cao Reviewed-by: Chr

[PATCH v2] dma-buf: acquire name lock before read/write dma_buf.name

2021-10-08 Thread guangming.cao
From: Guangming Cao Because dma-buf.name can be freed in func: "dma_buf_set_name", so, we need to acquire lock first before we read/write dma_buf.name to prevent Use After Free(UAF) issue. Signed-off-by: Guangming Cao --- drivers/dma-buf/dma-buf.c | 3 +++ 1 file changed, 3 insertions(+) diff

[PATCH v2] dma-buf: acquire name lock before read/write dma_buf.name

2021-10-07 Thread guangming.cao
From: Guangming Cao Because dma-buf.name can be freed in func: "dma_buf_set_name", so, we need to acquire lock first before we read/write dma_buf.name to prevent Use After Free(UAF) issue. Signed-off-by: Guangming Cao --- drivers/dma-buf/dma-buf.c | 5 + 1 file changed, 5 insertions(+) di