From: Stephen Hemminger <stephen@networkplumber.org>
To: Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Jose Abreu <joabreu@synopsys.com>
Cc: netdev@vger.kernel.org
Subject: Fw: [Bug 216195] New: Maxlinear GPY115 UBSAN: shift-out-of-bounds
Date: Fri, 1 Jul 2022 16:45:06 -0700 [thread overview]
Message-ID: <20220701164506.78266ebe@hermes.local> (raw)
Begin forwarded message:
Date: Fri, 01 Jul 2022 08:26:11 +0000
From: bugzilla-daemon@kernel.org
To: stephen@networkplumber.org
Subject: [Bug 216195] New: Maxlinear GPY115 UBSAN: shift-out-of-bounds
https://bugzilla.kernel.org/show_bug.cgi?id=216195
Bug ID: 216195
Summary: Maxlinear GPY115 UBSAN: shift-out-of-bounds
Product: Networking
Version: 2.5
Kernel Version: 5.15-5.17
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
Assignee: stephen@networkplumber.org
Reporter: cedric@bytespeed.nl
Regression: No
This is related to specific (wired) Ethernet IC: Maxlinear Ethernet GPY115B
The network interface does show up in ifconfig but is not functioning, no
ip-address is assigned.
During the bootup process I get the following warning:
UBSAN: shift-out-of-bounds in
/build/linux-WLUive/linux-
5.15.0/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c:224:12
Shift exponent 40 is too large for 32-bit type 'unsigned int'
This results in the following error:
Maxlinear Ethernet GPY115B stmmac-3:01: gpy_config_aneg failed -110
The specific kernel I am running: 5.15.0-40-generic on Ubuntu but also tested
this with Fedora Server 36 running kernel 5.17.
Config: CONFIG_MAXLINEAR_GPHY=m
The module is installed here:
/usr/lib/modules/5.15.0-generic/kernel/drivers/net/phy/mxl-gpy.ko
Additional information:
https://askubuntu.com/questions/1416068/how-to-enable-maxlinear-phy-gpy115-drivers
Datasheet:
https://www.maxlinear.com/product/connectivity/wired/ethernet/ethernet-transceivers-phy/gpy115
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next reply other threads:[~2022-07-01 23:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-01 23:45 Stephen Hemminger [this message]
2022-07-02 2:34 ` Fw: [Bug 216195] New: Maxlinear GPY115 UBSAN: shift-out-of-bounds Florian Fainelli
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