CVE-2026-68427 PUBLISHED

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings

Assigner: Linux
Reserved: 30.07.2026 Published: 10.08.2026 Updated: 10.08.2026

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

gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings

__host1x_bo_unpin() drops the last reference to the mapping and frees it, so we can't dereference mapping afterwards. The cache itself outlives the mapping, so use the cache local variable instead.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to abeff53233b984571b87582bb588b4b38ef4ea50 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 5b7e5f84d3d4cea10c3764d2da274810a7934228 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 5f4de3c717d34a24d555af581947742980778c02 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to b773faa32b0a98c3eb2b50d96de631681e5d1157 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 266cddf7bd0f6c79b6c0633aef742a22bf70265b (excl.)
  • affected from 0 to 6.6.148 (excl.)
  • affected from 0 to 6.12.101 (excl.)
  • affected from 0 to 6.18.42 (excl.)
  • affected from 0 to 7.1.6 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • unaffected from 6.6.148 to 6.6.* (incl.)
  • unaffected from 6.12.101 to 6.12.* (incl.)
  • unaffected from 6.18.42 to 6.18.* (incl.)
  • unaffected from 7.1.6 to 7.1.* (incl.)
  • unaffected from 7.2-rc4 to * (incl.)

References