Dan Carpenter 4542e583e2 acpi/nfit: improve bounds checking for 'func' ... commit 01091c496f upstream. The 'func' variable can come from the user in the __nd_ioctl(). If it's too high then the (1 << func) shift in acpi_nfit_clear_to_send() is undefined. In acpi_nfit_ctl() we pass 'func' to test_bit(func, &dsm_mask) which could result in an out of bounds access. To fix these issues, I introduced the NVDIMM_CMD_MAX (31) define and updated nfit_dsm_revid() to use that define as well instead of magic numbers. Fixes: 11189c1089 ("acpi/nfit: Fix command-supported detection") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Link: https://lore.kernel.org/r/20200225161927.hvftuq7kjn547fyj@kili.mountain Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-04-21 09:04:52 +02:00
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Kconfig	acpi/nfit: Add support for Intel DSM 1.8 commands	2018-12-04 10:31:11 -08:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
core.c	acpi/nfit: improve bounds checking for 'func'	2020-04-21 09:04:52 +02:00
intel.c	libnvdimm/security: Introduce a 'frozen' attribute	2019-08-29 13:49:13 -07:00
intel.h	acpi/nfit, libnvdimm: Introduce nvdimm_security_ops	2018-12-13 17:54:13 -08:00
mce.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
nfit.h	acpi/nfit: improve bounds checking for 'func'	2020-04-21 09:04:52 +02:00