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82444cdb46
Without a sentinel in the array of platform devices, we can get a panic so add a sentinel. Full stack dump below: [ 231.564705] BUG: KASAN: global-out-of-bounds in platform_match+0xb0/0x146 [ 231.565500] Read of size 1 at addr ffffffff8380a1a0 by task swapper/0/1 [ 231.566280] [ 231.566594] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-00289-g152771f #1 [ 231.567526] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014 [ 231.568730] Call Trace: [ 231.569128] dump_stack+0xf8/0x14a [ 231.569615] print_address_description+0x57/0x1e4 [ 231.570216] ? driver_probe_device+0x814/0x814 [ 231.570798] kasan_report+0x1cb/0x1eb [ 231.571302] ? platform_match+0xb0/0x146 [ 231.571833] __asan_load1+0x45/0x47 [ 231.572324] platform_match+0xb0/0x146 [ 231.572843] ? platform_uevent+0x73/0x73 [ 231.573370] __driver_attach+0x47/0x16a [ 231.573890] bus_for_each_dev+0x11a/0x15c [ 231.574422] ? bus_remove_file+0x57/0x57 [ 231.574951] ? do_raw_spin_unlock+0xc3/0xe0 [ 231.575501] driver_attach+0x2b/0x2e [ 231.576002] bus_add_driver+0x25e/0x3c5 [ 231.576520] ? set_debug_rodata+0x20/0x20 [ 231.584776] driver_register+0x13e/0x19d [ 231.585305] __platform_driver_register+0x6c/0x71 [ 231.585908] ? skl_driver_init+0x20/0x20 [ 231.586436] broxton_audio_init+0x17/0x19 [ 231.586976] do_one_initcall+0x11a/0x221 [ 231.587499] ? start_kernel+0x525/0x525 [ 231.588020] ? lock_downgrade+0x281/0x2ec [ 231.588557] ? trace_hardirqs_on_caller+0x223/0x267 [ 231.589169] ? _raw_spin_unlock_irqrestore+0x49/0x55 [ 231.589791] ? set_debug_rodata+0x20/0x20 [ 231.590324] kernel_init_freeable+0x1fd/0x2b0 [ 231.590891] ? rest_init+0x17c/0x17c [ 231.591384] kernel_init+0x11/0x157 [ 231.591876] ? rest_init+0x17c/0x17c [ 231.592371] ret_from_fork+0x2a/0x40 [ 231.592865] [ 231.593166] The buggy address belongs to the variable: [ 231.593806] bxt_board_ids+0x40/0x9e0 Fixes: 152771fbc3 ("ASoC: Intel: board: Add Geminilake platform support") Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Pradeep Tewani <pradeep.d.tewani@intel.com> Acked-By: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.