Re: [PATCH 01/12] block: initialize integrity buffer to zero before writing it to media

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Christoph,

> Metadata added by bio_integrity_prep is using plain kmalloc, which
> leads to random kernel memory being written media. For PI metadata
> this is limited to the app tag that isn't used by kernel generated
> metadata, but for non-PI metadata the entire buffer leaks kernel
> memory.
>
> Fix this by adding the __GFP_ZERO flag to allocations for writes.

Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

-- 
Martin K. Petersen	Oracle Linux Engineering




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]

  Powered by Linux