Public bug reported:
[Summary]
CPU/Memory stress test on ADL-P causes UBSAN shift-out-of-bounds in powercap.
[Steps to reproduce]
Run CPU or memory stress test
[Expected result]
No complaints in the kernel message
[Actual result]
Get UBSAN complaints in the kernel message
kernel: UBSAN: shift-out-of-bounds in
/build/linux-intel-iotg-5.15-8e6Tf4/linux-intel-iotg-5.15-5.15.0/drivers/powercap/intel_rapl_common.c:943:33
kernel: shift exponent 18446744073709551615 is too large for 32-bit type 'int'
[Failure rate]
10%
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux-intel-iotg (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux-intel-iotg-5.15 (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: linux-intel-iotg-5.15 (Ubuntu)
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https://bugs.launchpad.net/bugs/1996611
Title:
CPU/Memory stress test on ADL-P causes UBSAN shift-out-of-bounds issue
Status in HWE Next:
New
Status in linux-intel-iotg package in Ubuntu:
New
Bug description:
[Summary]
CPU/Memory stress test on ADL-P causes UBSAN shift-out-of-bounds in powercap.
[Steps to reproduce]
Run CPU or memory stress test
[Expected result]
No complaints in the kernel message
[Actual result]
Get UBSAN complaints in the kernel message
kernel: UBSAN: shift-out-of-bounds in
/build/linux-intel-iotg-5.15-8e6Tf4/linux-intel-iotg-5.15-5.15.0/drivers/powercap/intel_rapl_common.c:943:33
kernel: shift exponent 18446744073709551615 is too large for 32-bit type
'int'
[Failure rate]
10%
To manage notifications about this bug go to:
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