[LU-17517] shift exponent 65 is too large for 64-bit type in lov_request.c

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Affects Version/s: Lustre 2.15.4
• Severity: 3
• Assignee: Tim Day
• Reporter: Åke Sandgren

Description

One of our clients just gave us this:

[  201.440391] UBSAN: shift-out-of-bounds in /var/lib/dkms/lustre-client-modules/2.15.4-hpc2n0.2/build/lustre/lov/lov_request.c:230:23
[  201.452215] shift exponent 65 is too large for 64-bit type 'long long unsigned int'
[  201.460108] ================================================================================
[  201.468547] ================================================================================
[  201.476985] UBSAN: shift-out-of-bounds in /var/lib/dkms/lustre-client-modules/2.15.4-hpc2n0.2/build/lustre/lov/lov_request.c:231:23
[  201.488810] shift exponent 65 is too large for 64-bit type 'long long unsigned int'
[  201.496944] ================================================================================
[  201.505378] ================================================================================
[  201.513819] UBSAN: shift-out-of-bounds in /var/lib/dkms/lustre-client-modules/2.15.4-hpc2n0.2/build/lustre/lov/lov_request.c:232:23
[  201.525642] shift exponent 65 is too large for 64-bit type 'long long unsigned int'