[ubuntu/focal-proposed] linux-hwe-5.15 5.15.0-45.48~20.04.1 (Accepted)
Andy Whitcroft
apw at canonical.com
Thu Aug 4 14:12:23 UTC 2022
linux-hwe-5.15 (5.15.0-45.48~20.04.1) focal; urgency=medium
[ Ubuntu: 5.15.0-45.48 ]
* CVE-2022-29900 // CVE-2022-29901
- x86/lib/atomic64_386_32: Rename things
- x86: Prepare asm files for straight-line-speculation
- x86: Prepare inline-asm for straight-line-speculation
- x86/alternative: Relax text_poke_bp() constraint
- kbuild: move objtool_args back to scripts/Makefile.build
- x86: Add straight-line-speculation mitigation
- kvm/emulate: Fix SETcc emulation function offsets with SLS
- crypto: x86/poly1305 - Fixup SLS
- objtool: Add straight-line-speculation validation
- objtool: Fix SLS validation for kcov tail-call replacement
- objtool: Fix objtool regression on x32 systems
- objtool: Fix symbol creation
- objtool: Introduce CFI hash
- objtool: Default ignore INT3 for unreachable
- x86, kvm: use proper ASM macros for kvm_vcpu_is_preempted
- x86/traps: Use pt_regs directly in fixup_bad_iret()
- x86/entry: Switch the stack after error_entry() returns
- x86/entry: Move PUSH_AND_CLEAR_REGS out of error_entry()
- x86/entry: Don't call error_entry() for XENPV
- x86/entry: Remove skip_r11rcx
- x86/realmode: build with -D__DISABLE_EXPORTS
- x86/ibt,ftrace: Make function-graph play nice
- x86/kvm/vmx: Make noinstr clean
- x86/cpufeatures: Move RETPOLINE flags to word 11
- x86/retpoline: Cleanup some #ifdefery
- x86/retpoline: Swizzle retpoline thunk
- x86/retpoline: Use -mfunction-return
- x86: Undo return-thunk damage
- x86,objtool: Create .return_sites
- objtool: skip non-text sections when adding return-thunk sites
- x86,static_call: Use alternative RET encoding
- x86/ftrace: Use alternative RET encoding
- x86/bpf: Use alternative RET encoding
- x86/kvm: Fix SETcc emulation for return thunks
- x86/vsyscall_emu/64: Don't use RET in vsyscall emulation
- x86/sev: Avoid using __x86_return_thunk
- x86: Use return-thunk in asm code
- x86/entry: Avoid very early RET
- objtool: Treat .text.__x86.* as noinstr
- x86: Add magic AMD return-thunk
- x86/bugs: Report AMD retbleed vulnerability
- x86/bugs: Add AMD retbleed= boot parameter
- x86/bugs: Enable STIBP for JMP2RET
- x86/bugs: Keep a per-CPU IA32_SPEC_CTRL value
- x86/entry: Add kernel IBRS implementation
- x86/bugs: Optimize SPEC_CTRL MSR writes
- x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS
- x86/bugs: Split spectre_v2_select_mitigation() and
spectre_v2_user_select_mitigation()
- x86/bugs: Report Intel retbleed vulnerability
- intel_idle: Disable IBRS during long idle
- objtool: Update Retpoline validation
- x86/xen: Rename SYS* entry points
- x86/xen: Add UNTRAIN_RET
- x86/bugs: Add retbleed=ibpb
- x86/bugs: Do IBPB fallback check only once
- objtool: Add entry UNRET validation
- x86/cpu/amd: Add Spectral Chicken
- x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n
- x86/speculation: Fix firmware entry SPEC_CTRL handling
- x86/speculation: Fix SPEC_CTRL write on SMT state change
- x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit
- x86/speculation: Remove x86_spec_ctrl_mask
- objtool: Re-add UNWIND_HINT_{SAVE_RESTORE}
- KVM: VMX: Flatten __vmx_vcpu_run()
- KVM: VMX: Convert launched argument to flags
- KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS
- KVM: VMX: Fix IBRS handling after vmexit
- x86/speculation: Fill RSB on vmexit for IBRS
- KVM: VMX: Prevent RSB underflow before vmenter
- x86/common: Stamp out the stepping madness
- x86/cpu/amd: Enumerate BTC_NO
- x86/retbleed: Add fine grained Kconfig knobs
- x86/bugs: Add Cannon lake to RETBleed affected CPU list
- x86/entry: Move PUSH_AND_CLEAR_REGS() back into error_entry
- x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported
- x86/kexec: Disable RET on kexec
- x86/speculation: Disable RRSBA behavior
- [Config]: Enable speculation mitigations
- x86/static_call: Serialize __static_call_fixup() properly
- x86/asm/32: Fix ANNOTATE_UNRET_SAFE use on 32-bit
- x86/bugs: Mark retbleed_strings static
- x86/entry: Remove UNTRAIN_RET from native_irq_return_ldt
- x86/kvm: fix FASTOP_SIZE when return thunks are enabled
- x86/speculation: Use DECLARE_PER_CPU for x86_spec_ctrl_current
- KVM: emulate: do not adjust size of fastop and setcc subroutines
- x86/bugs: Remove apostrophe typo
- efi/x86: use naked RET on mixed mode call wrapper
Date: 2022-07-29 20:26:08.258900+00:00
Changed-By: Luke Nowakowski-Krijger <luke.nowakowskikrijger at canonical.com>
Signed-By: Andy Whitcroft <apw at canonical.com>
https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-45.48~20.04.1
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