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ima: Free IMA measurement buffer on error
[ Upstream commit6d14c65178
] 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:7b8589cc29
("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>
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@ -119,6 +119,7 @@ void ima_add_kexec_buffer(struct kimage *image)
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ret = kexec_add_buffer(&kbuf);
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if (ret) {
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pr_err("Error passing over kexec measurement buffer.\n");
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vfree(kexec_buffer);
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return;
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}
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