linux/arch/x86
Paolo Bonzini d332945418 KVM: x86: remove bogus user-triggerable WARN_ON
The WARN_ON is essentially comparing a user-provided value with 0.  It is
trivial to trigger it just by passing garbage to KVM_SET_CLOCK.  Guests
can break if you do so, but the same applies to every KVM_SET_* ioctl.
So, if it hurts when you do like this, just do not do it.

Reported-by: syzbot+00be5da1d75f1cc95f6b@syzkaller.appspotmail.com
Fixes: 9446e6fce0 ("KVM: x86: fix WARN_ON check of an unsigned less than zero")
Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-20 13:43:21 -04:00
..
boot Kbuild updates for v5.6 (2nd) 2020-02-09 16:05:50 -08:00
configs x86: Remove the calgary IOMMU driver 2019-11-15 10:36:59 +01:00
crypto crypto: x86/poly1305 - emit does base conversion itself 2020-01-22 16:21:11 +08:00
entry kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
events Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-01-28 09:44:15 -08:00
hyperv x86/hyperv: Suspend/resume the hypercall page for hibernation 2020-02-01 09:41:16 +01:00
ia32 x86: Remove force_iret() 2020-01-08 19:40:51 +01:00
include KVM: x86: remove stale comment from struct x86_emulate_ctxt 2020-03-03 17:38:22 +01:00
kernel KVM: Pre-allocate 1 cpumask variable per cpu for both pv tlb and pv ipis 2020-02-28 10:34:25 +01:00
kvm KVM: x86: remove bogus user-triggerable WARN_ON 2020-03-20 13:43:21 -04:00
lib Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-01-31 11:05:33 -08:00
math-emu Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 10:42:40 -08:00
mm x86: mm: avoid allocating struct mm_struct on the stack 2020-02-04 03:05:25 +00:00
net bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS 2020-01-09 08:46:18 -08:00
oprofile x86: Use pr_warn instead of pr_warning 2019-10-18 15:00:18 +02:00
pci pci-v5.6-changes 2020-01-31 14:48:54 -08:00
platform A single fix for a EFI boot regression on X86 which was caused by the 2020-02-09 11:54:50 -08:00
power x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 12:03:43 +02:00
purgatory Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 10:42:40 -08:00
ras RAS/CEC: Add CONFIG_RAS_CEC_DEBUG and move CEC debug features there 2019-06-08 17:39:24 +02:00
realmode kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
tools kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
um um: Implement copy_thread_tls 2020-01-07 13:31:29 +01:00
video
xen A set of fixes for X86: 2020-02-09 12:11:12 -08:00
.gitignore
Kbuild
Kconfig asm-generic/tlb: rename HAVE_RCU_TABLE_FREE 2020-02-04 03:05:26 +00:00
Kconfig.cpu x86/cpu: Detect VMX features on Intel, Centaur and Zhaoxin CPUs 2020-01-13 18:02:53 +01:00
Kconfig.debug x86: mm: convert dump_pagetables to use walk_page_range 2020-02-04 03:05:25 +00:00
Makefile x86/build: Add -Wnoaddress-of-packed-member to REALMODE_CFLAGS, to silence GCC9 build warning 2019-08-28 17:31:31 +02:00
Makefile_32.cpu x86/math-emu: Limit MATH_EMULATION to 486SX compatibles 2019-10-03 10:51:17 +02:00
Makefile.um