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CVE-2026-68427

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From af755456299d44e4ed6af3b7c70a7f03ea37fdf1 · fixed in 86a9bd8c8f422d5f3079da31e151868902fcc702; From 71c017b3f83ff72638f2a1b1d6d4e7bc61d30231 · fixed in abeff53233b984571b87582bb588b4b38ef4ea50; From 0e9dd7cfb9986b78cc81eca126ccfbf57f4c0602 · fixed in 5b7e5f84d3d4cea10c3764d2da274810a7934228; From 8c0d3cf0d5108c96317e0eca92b60dd368867cef · fixed in 5f4de3c717d34a24d555af581947742980778c02; From df63c76f9c8d881ca7bce1aecfba512328d0527d · fixed in b773faa32b0a98c3eb2b50d96de631681e5d1157; From 3cbf5e3c46e66d9b3b6b91099bb720c6cb1be3bc · fixed in 266cddf7bd0f6c79b6c0633aef742a22bf70265b

  • Linux Linux

    From 6.1.178 · fixed in 6.1.183; From 6.6.145 · fixed in 6.6.148; From 6.12.97 · fixed in 6.12.101; From 6.18.40 · fixed in 6.18.42; From 7.1.5 · fixed in 7.1.6

  • KernelLinux

    From 6.1.178 · fixed in 6.1.183; From 6.6.145 · fixed in 6.6.148; From 6.12.97 · fixed in 6.12.101; From 6.18.40 · fixed in 6.18.42; From 7.1.5 · fixed in 7.1.6

References 6

git.kernel.org