CVE-2026-43261 PUBLISHED

arm64: Add support for TSV110 Spectre-BHB mitigation

Assigner: Linux
Reserved: 01.05.2026 Published: 06.05.2026 Updated: 06.05.2026

In the Linux kernel, the following vulnerability has been resolved:

arm64: Add support for TSV110 Spectre-BHB mitigation

The TSV110 processor is vulnerable to the Spectre-BHB (Branch History Buffer) attack, which can be exploited to leak information through branch prediction side channels. This commit adds the MIDR of TSV110 to the list for software mitigation.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 598c11dd4f4a9de31d854fcb9702f54c1c70f0d0 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to a8d0ad5d990b050a6db74218a34b5529085e16b8 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to cccf96c49f61e47d9332d6a4d1c7fe9a2df44440 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to fd7e360845d331f542854d552469544182e61134 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 5dbe1f14359735fa50ba0dd4a496125b5bc7f422 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to fd51d47fcacec3ca027eb65d8c44853d3b6cea95 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to ad0c356cae164ed5dbd1f4cfd438e46faa5292cb (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to e3baa5d4b361276efeb87b20d8beced451a7dbd5 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • unaffected from 5.10.252 to 5.10.* (incl.)
  • unaffected from 5.15.202 to 5.15.* (incl.)
  • unaffected from 6.1.165 to 6.1.* (incl.)
  • unaffected from 6.6.128 to 6.6.* (incl.)
  • unaffected from 6.12.75 to 6.12.* (incl.)
  • unaffected from 6.18.16 to 6.18.* (incl.)
  • unaffected from 6.19.6 to 6.19.* (incl.)
  • unaffected from 7.0 to * (incl.)

References