Hi all, Today's linux-next merge of the tip tree got a conflict in arch/x86/kernel/ldt.c between commit fa81511bb0bb ("x86-64, modify_ldt: Make support for 16-bit segments a runtime option") from Linus' tree and commit 34273f41d57e ("x86, espfix: Make it possible to disable 16-bit support") from the tip tree. I fixed it up (see below) and can carry the fix as necessary (no action is required). -- Cheers, Stephen Rothwell sfr@xxxxxxxxxxxxxxxx diff --cc arch/x86/kernel/ldt.c index dcbbaa165bde,c37886d759cc..000000000000 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@@ -231,12 -229,7 +231,7 @@@ static int write_ldt(void __user *ptr, } } - /* - * On x86-64 we do not support 16-bit segments due to - * IRET leaking the high bits of the kernel stack address. - */ - #ifdef CONFIG_X86_64 - if (!ldt_info.seg_32bit && !sysctl_ldt16) { - if (!IS_ENABLED(CONFIG_X86_16BIT) && !ldt_info.seg_32bit) { ++ if (!IS_ENABLED(CONFIG_X86_16BIT) && !ldt_info.seg_32bit && !sysctl_ldt16) { error = -EINVAL; goto out_unlock; }
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