Re: [BUG] NULL pointer dereference in udf_sb_free_partitions

From: James Hogan
Date: Mon Jan 14 2013 - 16:14:44 EST


Hi,

On Mon, Jan 14, 2013 at 02:19:39PM +0900, Namjae Jeon wrote:
> There is missing exception handling in memory leak patch. (udf: Fix
> memory leak when mounting)
> So, Would you try to reproduce this problem with the below patch ?
>
> Thanks.
>
> ---------------------------------------------------------------------------
> Subject: [PATCH] UDF: Fix a null pointer dereference in udf_sb_free_partitions
>
> This patch fixes a regression caused by commit bff943af6fe
> "udf: Fix memory leak when mounting" due to which it was triggering
> a kernel null point dereference in case of mount failed OR when allocating
> memory to sbi->s_partmaps failed in function udf_sb_alloc_partition_maps.
>
> Reported-by: James Hogan <james@xxxxxxxxxxxxx>
> Signed-off-by: Namjae Jeon <namjae.jeon@xxxxxxxxxxx>
> Signed-off-by: Ashish Sangwan <a.sangwan@xxxxxxxxxxx>

v3.8-rc3 + your patch no longer crashes.

Tested-by: James Hogan <james@xxxxxxxxxxxxx>

Thanks
James
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