linux-ibm 5.15.0-1004.4 source package in Ubuntu

Changelog

linux-ibm (5.15.0-1004.4) jammy; urgency=medium

  * jammy/linux-ibm: 5.15.0-1004.4 -proposed tracker (LP: #1973901)

  [ Ubuntu: 5.15.0-33.34 ]

  * jammy/linux: 5.15.0-33.34 -proposed tracker (LP: #1973924)
  * CVE-2022-29581
    - net/sched: cls_u32: fix netns refcount changes in u32_change()
  * ext4: limit length to bitmap_maxbytes (LP: #1972281)
    - ext4: limit length to bitmap_maxbytes - blocksize in punch_hole
  * Unprivileged users may use PTRACE_SEIZE to set PTRACE_O_SUSPEND_SECCOMP
    option (LP: #1972740)
    - ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE

  [ Ubuntu: 5.15.0-30.31 ]

  * jammy/linux: 5.15.0-30.31 -proposed tracker (LP: #1971685)
  * Packaging resync (LP: #1786013)
    - [Packaging] update variants
    - debian/dkms-versions -- update from kernel-versions (main/2022.04.18)
  * Intel: enable x86 AMX (LP: #1967750)
    - x86/extable: Tidy up redundant handler functions
    - x86/extable: Get rid of redundant macros
    - x86/mce: Deduplicate exception handling
    - x86/mce: Get rid of stray semicolons
    - x86/extable: Rework the exception table mechanics
    - x86/extable: Provide EX_TYPE_DEFAULT_MCE_SAFE and EX_TYPE_FAULT_MCE_SAFE
    - x86/copy_mc: Use EX_TYPE_DEFAULT_MCE_SAFE for exception fixups
    - x86/fpu: Use EX_TYPE_FAULT_MCE_SAFE for exception fixups
    - x86/extable: Remove EX_TYPE_FAULT from MCE safe fixups
    - x86/fpu/signal: Clarify exception handling in restore_fpregs_from_user()
    - x86/fpu/signal: Move header zeroing out of xsave_to_user_sigframe()
    - x86/fpu/signal: Move xstate clearing out of copy_fpregs_to_sigframe()
    - x86/fpu/signal: Change return type of copy_fpstate_to_sigframe() to boolean
    - x86/fpu/signal: Change return type of copy_fpregs_to_sigframe() helpers to
      boolean
    - x86/signal: Change return type of restore_sigcontext() to boolean
    - x86/fpu/signal: Change return type of fpu__restore_sig() to boolean
    - x86/fpu/signal: Change return type of __fpu_restore_sig() to boolean
    - x86/fpu/signal: Change return code of check_xstate_in_sigframe() to boolean
    - x86/fpu/signal: Change return code of restore_fpregs_from_user() to boolean
    - x86/fpu/signal: Fix missed conversion to correct boolean retval in
      save_xstate_epilog()
    - x86/fpu: Remove pointless argument from switch_fpu_finish()
    - x86/fpu: Update stale comments
    - x86/pkru: Remove useless include
    - x86/fpu: Restrict xsaves()/xrstors() to independent states
    - x86/fpu: Cleanup the on_boot_cpu clutter
    - x86/fpu: Remove pointless memset in fpu_clone()
    - x86/process: Clone FPU in copy_thread()
    - x86/fpu: Do not inherit FPU context for kernel and IO worker threads
    - x86/fpu: Cleanup xstate xcomp_bv initialization
    - x86/fpu/xstate: Provide and use for_each_xfeature()
    - x86/fpu/xstate: Mark all init only functions __init
    - x86/fpu: Move KVMs FPU swapping to FPU core
    - x86/fpu: Replace KVMs home brewed FPU copy from user
    - x86/fpu: Rework copy_xstate_to_uabi_buf()
    - x86/fpu: Mark fpu__init_prepare_fx_sw_frame() as __init
    - x86/fpu: Move context switch and exit to user inlines into sched.h
    - x86/fpu: Clean up CPU feature tests
    - x86/fpu: Make os_xrstor_booting() private
    - x86/fpu: Move os_xsave() and os_xrstor() to core
    - x86/fpu: Move legacy ASM wrappers to core
    - x86/fpu: Make WARN_ON_FPU() private
    - x86/fpu: Move fpregs_restore_userregs() to core
    - x86/fpu: Move mxcsr related code to core
    - x86/fpu: Move fpstate functions to api.h
    - x86/fpu: Remove internal.h dependency from fpu/signal.h
    - x86/sev: Include fpu/xcr.h
    - x86/fpu: Mop up the internal.h leftovers
    - x86/fpu: Replace the includes of fpu/internal.h
    - x86/fpu: Provide a proper function for ex_handler_fprestore()
    - x86/fpu: Replace KVMs home brewed FPU copy to user
    - x86/fpu: Provide struct fpstate
    - x86/fpu: Convert fpstate_init() to struct fpstate
    - x86/fpu: Convert restore_fpregs_from_fpstate() to struct fpstate
    - x86/fpu: Replace KVMs xstate component clearing
    - x86/KVM: Convert to fpstate
    - x86/fpu: Convert tracing to fpstate
    - x86/fpu/regset: Convert to fpstate
    - x86/fpu/signal: Convert to fpstate
    - x86/fpu/core: Convert to fpstate
    - x86/math-emu: Convert to fpstate
    - x86/fpu: Remove fpu::state
    - x86/fpu: Do not leak fpstate pointer on fork
    - x86/process: Move arch_thread_struct_whitelist() out of line
    - x86/fpu: Add size and mask information to fpstate
    - x86/fpu: Use fpstate::size
    - x86/fpu/xstate: Use fpstate for os_xsave()
    - x86/fpu/xstate: Use fpstate for xsave_to_user_sigframe()
    - x86/fpu: Use fpstate in fpu_copy_kvm_uabi_to_fpstate()
    - x86/fpu: Use fpstate in __copy_xstate_to_uabi_buf()
    - x86/fpu/xstate: Use fpstate for copy_uabi_to_xstate()
    - x86/fpu/signal: Use fpstate for size and features
    - x86/fpu: Provide struct fpu_config
    - x86/fpu: Cleanup fpu__init_system_xstate_size_legacy()
    - x86/fpu/xstate: Cleanup size calculations
    - x86/fpu: Move xstate size to fpu_*_cfg
    - x86/fpu: Move xstate feature masks to fpu_*_cfg
    - x86/fpu: Mop up xfeatures_mask_uabi()
    - x86/fpu: Rework restore_regs_from_fpstate()
    - x86/fpu/xstate: Move remaining xfeature helpers to core
    - x86/fpu: Prepare for sanitizing KVM FPU code
    - x86/fpu: Provide infrastructure for KVM FPU cleanup
    - x86/kvm: Convert FPU handling to a single swap buffer
    - x86/fpu: Remove old KVM FPU interface
    - signal: Add an optional check for altstack size
    - x86/signal: Implement sigaltstack size validation
    - x86/fpu/xstate: Provide xstate_calculate_size()
    - x86/fpu: Add members to struct fpu to cache permission information
    - x86/fpu: Add fpu_state_config::legacy_features
    - x86/arch_prctl: Add controls for dynamic XSTATE components
    - x86/fpu: Add basic helpers for dynamically enabled features
    - x86/signal: Use fpu::__state_user_size for sigalt stack validation
    - x86/fpu/signal: Prepare for variable sigframe length
    - x86/fpu: Prepare fpu_clone() for dynamically enabled features
    - x86/fpu: Reset permission and fpstate on exec()
    - x86/cpufeatures: Add eXtended Feature Disabling (XFD) feature bit
    - x86/msr-index: Add MSRs for XFD
    - x86/fpu: Add XFD state to fpstate
    - x86/fpu: Add sanity checks for XFD
    - x86/fpu: Update XFD state where required
    - x86/fpu/xstate: Add XFD #NM handler
    - x86/fpu/xstate: Add fpstate_realloc()/free()
    - x86/fpu/xstate: Prepare XSAVE feature table for gaps in state component
      numbers
    - x86/fpu/amx: Define AMX state components and have it used for boot-time
      checks
    - x86/fpu: Calculate the default sizes independently
    - x86/fpu: Add XFD handling for dynamic states
    - x86/fpu/amx: Enable the AMX feature in 64-bit mode
    - selftests/x86/amx: Add test cases for AMX state management
    - selftests/x86/amx: Add context switch test
    - Documentation/x86: Add documentation for using dynamic XSTATE features
    - x86/fpu/signal: Initialize sw_bytes in save_xstate_epilog()
    - signal: Skip the altstack update when not needed
    - x86/cpufeatures: Put the AMX macros in the word 18 block
    - x86/fpu/xstate: Fix the ARCH_REQ_XCOMP_PERM implementation
    - selftests/x86/amx: Update the ARCH_REQ_XCOMP_PERM test
    - [Config] updateconfigs after AMX patchset

 -- Khalid Elmously <email address hidden>  Wed, 18 May 2022 21:08:20 -0400