Bug 2317603 (CVE-2024-47667)

Summary: CVE-2024-47667 kernel: PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0)
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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OS: Linux   
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Description OSIDB Bzimport 2024-10-09 15:03:45 UTC 
In the Linux kernel, the following vulnerability has been resolved:

PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0)

Errata #i2037 in AM65x/DRA80xM Processors Silicon Revision 1.0
(SPRZ452D_July 2018_Revised December 2019 [1]) mentions when an
inbound PCIe TLP spans more than two internal AXI 128-byte bursts,
the bus may corrupt the packet payload and the corrupt data may
cause associated applications or the processor to hang.

The workaround for Errata #i2037 is to limit the maximum read
request size and maximum payload size to 128 bytes. Add workaround
for Errata #i2037 here.

The errata and workaround is applicable only to AM65x SR 1.0 and
later versions of the silicon will have this fixed.

[1] -> https://www.ti.com/lit/er/sprz452i/sprz452i.pdf
Comment 1 Mauro Matteo Cascella 2024-10-11 16:18:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024100905-CVE-2024-47667-2d01@gregkh/T