Validated fixed in 6.8.0-146.
Failing case (6.8.0-111):
[ 0.000000] ACPI: Reserving SSDT table memory at [mem 0x6ff09000-0x6ff1df5f]
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] UBSAN: array-index-out-of-bounds in
/build/linux-yTBvbh/linux-6.8.0/arch/x86/kernel/apic/x2apic_uv_x.c:310:23
[ 0.000000] index 1 is out of range for type '<unknown> [1]'
[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 6.8.0-111-generic
#111-Ubuntu
Working case (6.8.0-146) no UBSAN message:
[ 0.000000] ACPI: Reserving SSDT table memory at [mem 0x6ff09000-0x6ff1df5f]
[ 0.000000] UV: UVarchtype received from BIOS
[ 0.000000] Linux version 6.8.0-146-generic (buildd@lcy02-amd64-111)
(x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04.1) 13.3.0, GNU ld (GNU
Binutils for Ubuntu) 2.42) #146-Ubuntu SMP PREEMPT_DYNAMIC Thu Sep 3 16:12:30
UTC 2026 (Ubuntu 6.8.0-146.146-generic 6.8.12)
** Tags removed: verification-needed-noble-linux
** Tags added: verification-done-noble-linux
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2161004
Title:
[SRU] HPE: Fix for UBSAN array-index-out-of-bounds
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2161004/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
