tree 21111c813da69ef7da59d0897279f31d6e92713a
parent e99fbca3382bc5f1665be04b46e6afeacbd37228
author Lakshmi Ramasubramanian <nramas@linux.microsoft.com> 1612460990 -0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1614792163 +0100

ima: Free IMA measurement buffer on error

[ Upstream commit 6d14c6517885fa68524238787420511b87d671df ]

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.  In error code paths this memory
is not freed resulting in memory leak.

Free the memory allocated for the IMA measurement list in
the error code paths in ima_add_kexec_buffer() function.

Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
Suggested-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Fixes: 7b8589cc29e7 ("ima: on soft reboot, save the measurement list")
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>