This bug was fixed in the package linux - 6.17.0-5.5
---------------
linux (6.17.0-5.5) questing; urgency=medium
* questing/linux: 6.17.0-5.5 -proposed tracker (LP: #2125319)
* Packaging resync (LP: #1786013)
- [Packaging] resync git-ubuntu-log
- [Packaging] debian.master/dkms-versions -- update from kernel-versions
(main/d2025.09.22)
* [SRU] Failed to create source package: Unmet build dependencies:
bpftool:native (LP: #2122310)
- [Packaging] fix build profile spec for bpftool
* UBUNTU: fan: fail to check kmalloc() return could cause a NULL pointer
dereference (LP: #2125053)
- SAUCE: fan: vxlan: check memory allocation for map
* iproute2 breaking netplan DEP-8 tests in Questing, unexpected "fan-map" in
JSON output (LP: #2124257)
- SAUCE: fan: don't enforce a specific enum value for IFLA_VXLAN_FAN_MAP
* memory leaks when configuring a small rate limit in audit (LP: #2122554)
- SAUCE: audit: fix skb leak when audit rate limit is exceeded
* Support AMD Image Signal Processing (ISP) unit V4.0 (LP: #2110092)
- SAUCE: media: platform: amd: Introduce amd isp4 capture driver
- SAUCE: media: platform: amd: low level support for isp4 firmware
- SAUCE: media: platform: amd: Add isp4 fw and hw interface
- SAUCE: media: platform: amd: isp4 subdev and firmware loading handling
added
- SAUCE: media: platform: amd: isp4 video node and buffers handling added
- SAUCE: media: platform: amd: isp4 debug fs logging and more descriptive
errors
- SAUCE: Documentation: add documentation of AMD isp 4 driver
- [Config] Enable AMD_ISP4
* 25.10 Snapdragon X Elite: Sync concept kernel changes (LP: #2121477)
- phy: qcom: qmp-combo: Rename 'mode' to 'phy_mode'
- phy: qcom: qmp-combo: store DP phy power state
- phy: qcom: qmp-combo: introduce QMPPHY_MODE
- phy: qcom: qmp-combo: register a typec mux to change the QMPPHY_MODE
- arm64: dts: qcom: x1e80100-crd: Add USB multiport fingerprint reader
- dt-bindings: arm: qcom: Add Dell Latitude 7455
- dt-bindings: display: panel: samsung,atna40cu11: document ATNA40CU11
- dt-bindings: display: panel: samsung,atna40ct06: document ATNA40CT06
- drm/panel-edp: Add BOE NV140WUM-N64
- arm64: dts: qcom: x1-crd: Enable HBR3 on external DPs
- SAUCE: drm/dp: drm_edp_backlight_set_level: do not always send 3-byte
commands
- SAUCE: drm/edp-panel: Add touchscreen panel used by Lenovo X13s
- SAUCE: net: qrtr: mhi: synchronize qrtr and mhi preparation
- SAUCE: arm64: dts: qcom: x1e78100-t14s-oled: add eDP panel
- SAUCE: wip: arm64: dts: qcom: x1e80100-crd: Add WiFi/BT pwrseq
- SAUCE: wip: arm64: dts: qcom: x1e78100-t14s: enable bluetooth
- SAUCE: drm/dp: clamp PWM bit count to advertised MIN and MAX
capabilities
- SAUCE: arm64: dts: qcom: x1e80100-pmics: Disable pm8010 by default
- SAUCE: arm64: dts: qcom: x1e80100-dell-xps13-9345: Add Left/Right
Speakers and Tweeter
- SAUCE: arm64: dts: qcom: x1e80100-dell-xps13-9345: enable MICs LDO
- SAUCE: arm64: dts: qcom: x1e80100-dell-xps13-9345: Mark audio channels
as left-right swapped
- SAUCE: arm64: dts: qcom: sc8280xp-lenovo-thinkpad-x13: Set up 4-lane DP
- SAUCE: dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp-phy: Document default
phy mode
- SAUCE: phy: qcom: qmp-combo: get default qmpphy_mode from DT
- SAUCE: arm64: dts: qcom: x1e78100-lenovo-thinkpad-t14s: add HDMI nodes
- SAUCE: dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Reference usb-
switch.yaml to allow mode-switch
- SAUCE: dt-bindings: arm: qcom: Add Asus Zenbook A14 UX3407QA LCD/OLED
variants
- SAUCE: arm64: dts: qcom: Rework X1-based Asus Zenbook A14's displays
- SAUCE: arm64: dts: qcom: x1e80100-asus-zenbook-a14: Enable WiFi,
Bluetooth
- SAUCE: arm64: dts: qcom: Add support for Dell Inspiron 7441 / Latitude
7455
- SAUCE: firmware: qcom: scm: Allow QSEECOM on Dell Inspiron 7441 /
Latitude 7455
- SAUCE: dt-bindings: arm: qcom: Add Acer Swift 14 AI
- SAUCE: arm64: dts: qcom: x1-acer-swift-14: Add support for Acer Swift 14
- SAUCE: arm64: dts: qcom: x1e80100: allow mode-switch events to reach the
QMP Combo PHYs
- SAUCE: arm64: dts: qcom: x1e80100: move dp0/1/2 data-lanes to SoC dtsi
- SAUCE: arm64: dts: qcom: x1e80100: Set up 4-lane DP
- SAUCE: arm64: dts: qcom: x1e80100: move remaining dp0/1/2 data-lanes to
SoC dtsi
- Revert "UBUNTU: SAUCE: Change: cracking sound fix"
* UBSAN: shift-out-of-bounds in drivers/edac/skx_common.c:452:16
(LP: #2119713)
- EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller
* Miscellaneous Ubuntu changes
- [Config] updateconfigs for v6.17-rc6 rebase
-- Timo Aaltonen <[email protected]> Mon, 22 Sep 2025
10:33:58 +0300
** Changed in: linux (Ubuntu Questing)
Status: In Progress => Fix Released
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/2119713
Title:
UBSAN: shift-out-of-bounds in drivers/edac/skx_common.c:452:16
Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Released
Status in linux-oem-6.14 package in Ubuntu:
Invalid
Status in linux source package in Noble:
Fix Committed
Status in linux-oem-6.14 source package in Noble:
Fix Released
Status in linux source package in Plucky:
In Progress
Status in linux-oem-6.14 source package in Plucky:
Invalid
Status in linux source package in Questing:
Fix Released
Status in linux-oem-6.14 source package in Questing:
Invalid
Bug description:
[Impact]
Shows the following UBSAN warning messages in dmesg
Jul 21 08:37:25 localhost kernel: UBSAN: shift-out-of-bounds in
/build/linux-oem-6.14-44jeWy/linux-oem-6.14-6.14.0/drivers/edac/skx_common.c:452:16
Jul 21 08:37:25 localhost kernel: shift exponent -66 is negative
Jul 21 08:37:25 localhost kernel: CPU: 79 UID: 0 PID: 2454 Comm:
(udev-worker) Not tainted 6.14.0-1006-oem #6-Ubuntu
Jul 21 08:37:25 localhost kernel: Hardware name: Dell Inc. Dell Pro Max Tower
T6 FCT6260/, BIOS 0.9.39 07/09/2025
Jul 21 08:37:25 localhost kernel: Call Trace:
Jul 21 08:37:25 localhost kernel: <TASK>
Jul 21 08:37:25 localhost kernel: dump_stack_lvl+0x76/0xa0
Jul 21 08:37:25 localhost kernel: dump_stack+0x10/0x20
Jul 21 08:37:25 localhost kernel:
__ubsan_handle_shift_out_of_bounds+0x1a5/0x380
Jul 21 08:37:25 localhost kernel: skx_get_dimm_info.cold+0x2a/0x17f
[skx_edac_common]
Jul 21 08:37:25 localhost kernel: i10nm_get_dimm_config+0x1f9/0x300
[i10nm_edac]
Jul 21 08:37:25 localhost kernel: skx_register_mci+0x139/0x1e0
[skx_edac_common]
Jul 21 08:37:25 localhost kernel: ? __pfx_i10nm_get_dimm_config+0x10/0x10
[i10nm_edac]
Jul 21 08:37:25 localhost kernel: i10nm_init+0x42b/0xff0 [i10nm_edac]
Jul 21 08:37:25 localhost kernel: ? __pfx_i10nm_init+0x10/0x10 [i10nm_edac]
[Fix]
In linux-next
2e6fe1bbefd9 EDAC/i10nm: Skip DIMM enumeration on a disabled memory controller
Intel provides a fix for this issue
https://lore.kernel.org/lkml/[email protected]/
[Test]
Boot up the Intel Granite Rapids and check dmesg log, there should be no
UBSAN shift-out-of-bounds message.
[Where problems could occur]
It adds extra check for edac i10nm driver, the impact should be low.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/2119713/+subscriptions
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