Re: [PATCH] acpi: debugfs: fix buffer overflows, double free

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

 



On Thu, 20 Jan 2011 23:08:06 +0300, Vasiliy Kulikov wrote:

> File position is not controlled, it may lead to overwrites of arbitrary
> kernel memory.  Also the code may kfree() the same pointer multiple
> times.
> 
> One more flaw is still present: if multiple processes open the file then
> all 3 static variables are shared, leading to various race conditions.
> They should be moved to file->private_data.
> 
> Signed-off-by: Vasiliy Kulikov <segoon@xxxxxxxxxxxx>

Reviewed-by: WANG Cong <xiyou.wangcong@xxxxxxxxx>

Thanks.

--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux