From: Lukas Wunner <lukas@wunner.de>
To: Bjorn Helgaas <helgaas@kernel.org>, linux-pci@vger.kernel.org
Cc: Sourabh Jain <sourabhjain@linux.ibm.com>,
Oliver OHalloran <oohall@gmail.com>,
linuxppc-dev@lists.ozlabs.org,
Alex Deucher <alexander.deucher@amd.com>,
Sathyanarayanan Kuppuswamy
<sathyanarayanan.kuppuswamy@linux.intel.com>,
Keith Busch <kbusch@kernel.org>,
Maciej Grochowski <Maciej.Grochowski@sony.com>,
Ilpo Jaervinen <ilpo.jarvinen@linux.intel.com>,
Yazen Ghannam <yazen.ghannam@amd.com>
Subject: [PATCH v2 0/2] PCI/AER: Improve Error Source handling
Date: Fri, 6 Nov 2026 17:38:00 +0100 [thread overview]
Message-ID: <cover.1793982724.git.lukas@wunner.de> (raw)
While analyzing log output provided by Alex, I noticed that the AER driver
fails to find the error-signaling device if the Error Source ID register
contains an invalid, non-zero value. Fix it (patch [2/2]).
While at it, fix a potential NULL pointer deref in that portion of the code
(patch [1/2]).
Changes versus v1 in patch [2/2]:
Reorder a < b && b < c comparisons (Ilpo, Bjorn)
Amend kernel-doc of find_source_device() (Sathya)
s/subordinate/secondary/ in commit message (Bjorn)
Document behavioral change in commit message (sashiko)
Link to v1:
https://lore.kernel.org/r/cover.1793697480.git.lukas@wunner.de
Lukas Wunner (2):
PCI/AER: Avoid NULL pointer deref on search for Error Source
PCI/AER: Check validity of Error Source ID register
drivers/pci/pci.h | 7 ++++++-
drivers/pci/pcie/aer.c | 37 +++++++++++++++++++++++++++----------
drivers/pci/pcie/rcec.c | 14 ++++++++++++++
3 files changed, 47 insertions(+), 11 deletions(-)
--
2.53.0
next reply other threads:[~2026-11-06 16:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-06 16:38 Lukas Wunner [this message]
2026-11-06 16:38 ` [PATCH v2 1/2] PCI/AER: Avoid NULL pointer deref on search for Error Source Lukas Wunner
2026-11-06 17:01 ` sashiko-bot
2026-11-06 16:38 ` [PATCH v2 2/2] PCI/AER: Check validity of Error Source ID register Lukas Wunner
2026-11-06 17:07 ` Ilpo Järvinen
2026-11-06 17:15 ` sashiko-bot
2026-11-06 17:25 ` Lukas Wunner
2026-11-06 17:37 ` Ilpo Järvinen
2026-11-09 23:36 ` [PATCH v2 0/2] PCI/AER: Improve Error Source handling Bjorn Helgaas
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