Andrey Ryabinin 4f24ecff01 platform/x86: intel_pmc_core: fix out-of-bounds accesses on stack ... pmc_core_mtpmc_link_status() an pmc_core_check_read_lock_bit() use test_bit() on local 32-bit variable. This causes out-of-bounds access since test_bit() expects object at least of 'unsigned long' size: BUG: KASAN: stack-out-of-bounds in pmc_core_probe+0x3aa/0x3b0 Call Trace: __asan_report_load_n_noabort+0x5c/0x80 pmc_core_probe+0x3aa/0x3b0 local_pci_probe+0xf9/0x1e0 pci_device_probe+0x27b/0x350 driver_probe_device+0x419/0x830 __driver_attach+0x15f/0x1d0 bus_for_each_dev+0x129/0x1d0 driver_attach+0x42/0x70 bus_add_driver+0x385/0x690 driver_register+0x1a9/0x3d0 __pci_register_driver+0x1a2/0x290 intel_pmc_core_driver_init+0x19/0x1b do_one_initcall+0x12e/0x280 kernel_init_freeable+0x57c/0x623 kernel_init+0x13/0x140 ret_from_fork+0x2e/0x40 Fix this by open coding bit test. While at it, also refactor this code a little bit. Fixes: 173943b3da ("platform/x86: intel_pmc_core: ModPhy core lanes pg status") Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> [andy: reverted not related changes, used BIT() macro] Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>		2017-02-14 00:39:48 +02:00
..
chrome	platform/chrome: cros_ec_dev - Register cros-ec sensors	2016-10-25 18:20:32 +01:00
goldfish	platform: goldfish: pipe: use get_user_pages_unlocked()	2016-11-10 15:34:56 +01:00
mips	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2016-05-19 10:02:26 -07:00
olpc	platform/olpc: Make ec explicitly non-modular	2016-08-28 22:31:52 -07:00
x86	platform/x86: intel_pmc_core: fix out-of-bounds accesses on stack	2017-02-14 00:39:48 +02:00
Kconfig	goldfish: refactor goldfish platform configs	2016-01-28 23:34:36 -08:00
Makefile	MIPS: Loongson-3: Add CPU Hwmon platform driver	2015-04-01 17:22:17 +02:00