[PATCH v2 0/7] ACPI: APEI: GHES: Collection of fixes for issues reported by sashiko

[Dave Jiang <dave.jiang@intel.com>]

A collection of fixes for pre-existing issues reported by sashiko-bot while
reviewing patches.

1/7: Bound the CXL event record copy to the firmware section length.
2/7: Validate the CXL protocol error section length before the RAS cap copy.
3/7: Avoid populating software AER metadata from the raw hardware buffer.
4/7: Validate the PCIe error section length before payload access.
5/7: Fix the CONFIG_ACPI_APEI_PCIEAER guard typo in extlog.c.
6/7: Defer CXL protocol error handling to avoid a lock inversion.
7/7: Validate the memory error section length before payload access.

v1: https://lore.kernel.org/linux-cxl/20260709162807.1957783-1-dave.jiang@intel.com/

Changes since v1:
- Dropped v1 1/4 "ACPI: APEI: GHES: Use spin_lock_irqsave() for CXL CPER
  work locks". Terry Bowman has a more comprehensive version of this that
  he will post.
- Reordered the series so the two patches that harden extlog_print_pcie()
  land before the CONFIG_ACPI_APEI_PCIEAER typo fix that activates that
  code path, avoiding a bisection window where the path is live but
  unhardened.
- Grew the series from 4 to 7 patches, adding four fixes for the
  additional pre-existing issues Sashiko flagged on the v1 posting.

Dave Jiang (7):
  ACPI: APEI: GHES: Bound CXL event record copy to the firmware section
    length
  ACPI: APEI: GHES: Validate CXL protocol error section length before
    RAS cap copy
  ACPI: extlog: Avoid populating software AER metadata from raw hardware
    buffer
  ACPI: extlog: Validate PCIe error section length before payload access
  ACPI: extlog: Fix CONFIG_ACPI_APEI_PCIEAER guard typo
  ACPI: extlog: Defer CXL protocol error handling to avoid lock
    inversion
  ACPI: APEI: GHES: Validate memory error section length before payload
    access

 drivers/acpi/acpi_extlog.c       | 40 ++++++++++++++------------------
 drivers/acpi/apei/ghes.c         | 35 +++++++++++++++++++++-------
 drivers/acpi/apei/ghes_helpers.c | 22 +++++++++++++++++-
 include/acpi/ghes.h              |  4 ++++
 include/cxl/event.h              |  4 ++--
 5 files changed, 71 insertions(+), 34 deletions(-)


base-commit: a13c140cc289c0b7b3770bce5b3ad42ab35074aa
-- 
2.55.0