Re: [request for stable inclusion]: ext2: Fix fs corruption in ext2_get_xip_mem()

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On 2014/9/12 9:57, Wang Nan wrote:
> Hi Greg and Zefan:
> 
> upstream commit 7ba3ec5749ddb61f79f7be17b5fd7720eebc52de:
>   ext2: Fix fs corruption in ext2_get_xip_mem()
> 
> looks applicable for 3.10 and 3.4.
> 
> On 3.10, without this patch we can easily trigger a bug using:
> 
> # mkfs.ext2 -b 4096 /dev/ram1
> # mount -t ext2 -o xip /dev/ram1 /mnt
> # cp /bin/ls /mnt
> cp: error writing '/mnt/ls': No space left on device
> cp: failed to extend '/mnt/ls': No space left on device
> 
> On 3.4, no such error report, but in this case an extra block is allocated.
> 

Queued for 3.4.104. Thanks!

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