Description
An issue has been identified in Arm C1-Pro before r1p2-50eac0, where, under certain conditions, a TLBI+DSB might fail to ensure the completion of memory accesses related to SME.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Arm | C1 Pro | < r1p2-50eac0 | r1p2-50eac0 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | arm-trusted-firmware | 2.12.16+dfsg-1 | — |
| Debian 13 | arm-trusted-firmware | No fix yet | — |
| Debian 12 | arm-trusted-firmware | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | arm-trusted-firmware | No fix yet | — |
| Ubuntu 26.04 LTS | arm-trusted-firmware | No fix yet | — |
| Ubuntu 24.04 LTS | arm-trusted-firmware | No fix yet | — |
| Ubuntu 22.04 LTS | arm-trusted-firmware | No fix yet | — |
| Ubuntu 20.04 LTS | arm-trusted-firmware | No fix yet | — |