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mirror_ubuntu-kernels/arch/x86/kernel/cpu/sgx
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Jarkko Sakkinen a4b9c48b96 x86/sgx: Return -EINVAL on a zero length buffer in sgx_ioc_enclave_add_pages() 
The sgx_enclave_add_pages.length field is documented as

 * @length:     length of the data (multiple of the page size)

Fail with -EINVAL, when the caller gives a zero length buffer of data
to be added as pages to an enclave. Right now 'ret' is returned as
uninitialized in that case.

 [ bp: Flesh out commit message. ]

Fixes: c6d26d3707 ("x86/sgx: Add SGX_IOC_ENCLAVE_ADD_PAGES")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/linux-sgx/X8ehQssnslm194ld@mwanda/
Link: https://lkml.kernel.org/r/20201203183527.139317-1-jarkko@kernel.org
2020-12-03 19:54:40 +01:00
..
arch.h
driver.c x86/sgx: Add a page reclaimer 2020-11-18 18:04:11 +01:00
driver.h x86/sgx: Add SGX_IOC_ENCLAVE_PROVISION 2020-11-18 18:02:50 +01:00
encl.c x86/sgx: Add ptrace() support for the SGX driver 2020-11-18 18:04:11 +01:00
encl.h x86/sgx: Add a page reclaimer 2020-11-18 18:04:11 +01:00
encls.h x86/sgx: Add wrappers for ENCLS functions 2020-11-17 14:36:12 +01:00
ioctl.c x86/sgx: Return -EINVAL on a zero length buffer in sgx_ioc_enclave_add_pages() 2020-12-03 19:54:40 +01:00
main.c x86/sgx: Clarify 'laundry_list' locking 2020-11-18 18:16:28 +01:00
Makefile x86/sgx: Add SGX_IOC_ENCLAVE_CREATE 2020-11-18 18:02:49 +01:00
sgx.h x86/sgx: Clarify 'laundry_list' locking 2020-11-18 18:16:28 +01:00