Accepted linux 4.9.168-1+deb9u2 (all source) into proposed-updates->stable-new, proposed-updates
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Hash: SHA512
Format: 1.8
Date: Mon, 13 May 2019 21:59:18 +0100
Binary: linux-doc-4.9 linux-headers-4.9.0-9-common linux-headers-4.9.0-9-common-rt linux-manual-4.9 linux-source-4.9 linux-support-4.9.0-9
Source: linux
Architecture: all source
Version: 4.9.168-1+deb9u2
Distribution: stretch-security
Urgency: high
Maintainer: Debian Kernel Team <debian-kernel@lists.debian.org>
Changed-By: Ben Hutchings <ben@decadent.org.uk>
Closes: 928125
Description:
linux-doc-4.9 - Linux kernel specific documentation for version 4.9
linux-headers-4.9.0-9-common - Common header files for Linux 4.9.0-9
linux-headers-4.9.0-9-common-rt - Common header files for Linux 4.9.0-9-rt
linux-manual-4.9 - Linux kernel API manual pages for version 4.9
linux-source-4.9 - Linux kernel source for version 4.9 with Debian patches
linux-support-4.9.0-9 - Support files for Linux 4.9
Changes:
linux (4.9.168-1+deb9u2) stretch-security; urgency=high
.
[ Salvatore Bonaccorso ]
* Revert "block/loop: Use global lock for ioctl() operation."
(Closes: #928125)
.
linux (4.9.168-1+deb9u1) stretch-security; urgency=high
.
* [x86] Update speculation mitigations:
- x86/MCE: Save microcode revision in machine check records
- x86/cpufeatures: Hide AMD-specific speculation flags
- x86/bugs: Add AMD's variant of SSB_NO
- x86/bugs: Add AMD's SPEC_CTRL MSR usage
- x86/bugs: Switch the selection of mitigation from CPU vendor to CPU
features
- x86/bugs: Fix the AMD SSBD usage of the SPEC_CTRL MSR
- x86/microcode/intel: Add a helper which gives the microcode revision
- x86/microcode/intel: Check microcode revision before updating sibling
threads
- x86/microcode: Make sure boot_cpu_data.microcode is up-to-date
- x86/microcode: Update the new microcode revision unconditionally
- x86/mm: Use WRITE_ONCE() when setting PTEs
- bitops: avoid integer overflow in GENMASK(_ULL)
- x86/speculation: Simplify the CPU bug detection logic
- locking/atomics, asm-generic: Move some macros from <linux/bitops.h> to a
new <linux/bits.h> file
- x86/speculation: Remove SPECTRE_V2_IBRS in enum spectre_v2_mitigation
- x86/cpu: Sanitize FAM6_ATOM naming
- Documentation/l1tf: Fix small spelling typo
- x86/speculation: Apply IBPB more strictly to avoid cross-process data
leak
- x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation
- x86/speculation: Propagate information about RSB filling mitigation to
sysfs
- x86/speculation/l1tf: Drop the swap storage limit restriction when
l1tf=off
- x86/speculation: Update the TIF_SSBD comment
- x86/speculation: Clean up spectre_v2_parse_cmdline()
- x86/speculation: Remove unnecessary ret variable in cpu_show_common()
- x86/speculation: Move STIPB/IBPB string conditionals out of
cpu_show_common()
- x86/speculation: Disable STIBP when enhanced IBRS is in use
- x86/speculation: Rename SSBD update functions
- x86/speculation: Reorganize speculation control MSRs update
- x86/Kconfig: Select SCHED_SMT if SMP enabled
- sched: Add sched_smt_active()
- x86/speculation: Rework SMT state change
- x86/l1tf: Show actual SMT state
- x86/speculation: Reorder the spec_v2 code
- x86/speculation: Mark string arrays const correctly
- x86/speculataion: Mark command line parser data __initdata
- x86/speculation: Unify conditional spectre v2 print functions
- x86/speculation: Add command line control for indirect branch speculation
- x86/speculation: Prepare for per task indirect branch speculation control
- x86/process: Consolidate and simplify switch_to_xtra() code
- x86/speculation: Avoid __switch_to_xtra() calls
- x86/speculation: Prepare for conditional IBPB in switch_mm()
- x86/speculation: Split out TIF update
- x86/speculation: Prepare arch_smt_update() for PRCTL mode
- x86/speculation: Prevent stale SPEC_CTRL msr content
- x86/speculation: Add prctl() control for indirect branch speculation
- x86/speculation: Enable prctl mode for spectre_v2_user
- x86/speculation: Add seccomp Spectre v2 user space protection mode
- x86/speculation: Provide IBPB always command line options
- kvm: x86: Report STIBP on GET_SUPPORTED_CPUID
- x86/msr-index: Cleanup bit defines
- x86/speculation: Consolidate CPU whitelists
- Documentation: Move L1TF to separate directory
- cpu/speculation: Add 'mitigations=' cmdline option
- x86/speculation: Support 'mitigations=' cmdline option
- x86/speculation/mds: Add 'mitigations=' support for MDS
- x86/cpu/bugs: Use __initconst for 'const' init data
* [x86] Mitigate Microarchitectural Data Sampling (MDS) vulnerabilities
(CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091):
- x86/speculation/mds: Add basic bug infrastructure for MDS
- x86/speculation/mds: Add BUG_MSBDS_ONLY
- x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
- x86/speculation/mds: Add mds_clear_cpu_buffers()
- x86/speculation/mds: Clear CPU buffers on exit to user
- x86/kvm/vmx: Add MDS protection when L1D Flush is not active
- x86/speculation/mds: Conditionally clear CPU buffers on idle entry
- x86/speculation/mds: Add mitigation control for MDS
- x86/speculation/mds: Add sysfs reporting for MDS
- x86/speculation/mds: Add mitigation mode VMWERV
- Documentation: Add MDS vulnerability documentation
- x86/speculation/mds: Add mds=full,nosmt cmdline option
- x86/speculation: Move arch_smt_update() call to after mitigation decisions
- x86/speculation/mds: Add SMT warning message
- x86/speculation/mds: Fix comment
- x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
- x86/mds: Add MDSUM variant to the MDS documentation
- Documentation: Correct the possible MDS sysfs values
- x86/speculation/mds: Fix documentation typo
* [x86] msr-index: Remove dependency on <linux/bits.h>
* [rt] Update patches to apply on top of the speculation mitigation changes
* [x86] mce, tlb: Ignore ABI changes
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