HighFix available
gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.1.183, 6.12.101, 6.18.42, 6.6.148, 7.1.6
- CVEs
- CVE-2026-68427
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 20:10 UTC · Revision 1
Source evidence
gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings
core-osv · Original sourcePublished 10 Aug 2026, 12:04 UTC
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.
osv:CVE-2026-68427
Kernel
Fixed versions: 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6
Complete source record
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"title": "gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings",
"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.",
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"modified": "2026-10-28T02:30:23.020159191Z",
"provider": "osv",
"references": [
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"https://nvd.nist.gov/vuln/detail/CVE-2026-68427",
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"source_id": "core-osv",
"document_id": 489663,
"published_at": "2026-08-10T12:04:47.915+00:00"
}