Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: arm64: mops: Do not dereference src reg for a set operation The source register is not used for SET* and reading it can result in a UBSAN out-of-bounds array access error, specifically when the MOPS exception is taken from a SET* sequence with XZR (reg 31) as the source. Architecturally this is the only case where a src/dst/size field in the ESR can be reported as 31. Prior to 2de451a329cf662b the code in do_el0_mops() was benign as the use of pt_regs_read_reg() prevented the out-of-bounds access.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2de451a329cf662beeba71f63c7f83ee24ca6642 before eec737e17e5567e08148550a7f1d94d495b9fb17; affected 2de451a329cf662beeba71f63c7f83ee24ca6642 before 43267d934eacff6c70e15545d804ebbcab8a0bf5; affected 2de451a329cf662beeba71f63c7f83ee24ca6642 before 5f6022a74147675124b781fdc056b291850e7786; affected 2de451a329cf662beeba71f63c7f83ee24ca6642 before a13bfa4fe0d6949cea14718df2d1fe84c38cd113 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 6.12.24 through 6.12.*; unaffected 6.13.12 through 6.13.*; unaffected 6.14.3 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.