Messages in this thread | | | Date | Wed, 24 Feb 2021 00:33:58 +0100 | From | Petr Vorel <> | Subject | Re: [PATCH v2 1/2] ima: Free IMA measurement buffer on error |
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Hi all,
<snip> > > > > <formletter>
> > > > This is not the correct way to submit patches for inclusion in the > > > > stable kernel tree. Please read: > > > > https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html > > > > for how to do this properly.
> > > > </formletter>
> > > Thanks for the info Greg.
> > > I will re-submit the two patches in the proper format.
> > No need. I'm testing these patches now. I'm not exactly sure what the > > problem is. Stable wasn't Cc'ed. Is it that you sent the patch > > directly to Greg or added "Fixes"?
> I had not Cced stable, but had "Fixes" tag in the patch.
> Fixes: 7b8589cc29e7 ("ima: on soft reboot, save the measurement list")
> The problem is that the buffer allocated for forwarding the IMA measurement > list is not freed - at the end of the kexec call and also in an error path. > Please see the patch description for
> [PATCH v2 2/2] ima: Free IMA measurement buffer after kexec syscall
> IMA allocates kernel virtual memory to carry forward the measurement > list, from the current kernel to the next kernel on kexec system call, > in ima_add_kexec_buffer() function. This buffer is not freed before > completing the kexec system call resulting in memory leak.
> thanks, > -lakshmi
Mimi, Lakshmi, it looks like these two fixes haven't been submitted to stable kernels. Could you please submit them?
Thanks a lot!
Kind regards, Petr
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