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CVE-2026-68427gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings
- 7.8HighCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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
ID reserved
By Linux
- 11 days later
· 11 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected af755456299d44e4ed6af3b7c70a7f03ea37fdf1 – < 86a9bd8c8f422d5f3079da31e151868902fcc702
- affected 71c017b3f83ff72638f2a1b1d6d4e7bc61d30231 – < abeff53233b984571b87582bb588b4b38ef4ea50
- affected 0e9dd7cfb9986b78cc81eca126ccfbf57f4c0602 – < 5b7e5f84d3d4cea10c3764d2da274810a7934228
- affected 8c0d3cf0d5108c96317e0eca92b60dd368867cef – < 5f4de3c717d34a24d555af581947742980778c02
- affected df63c76f9c8d881ca7bce1aecfba512328d0527d – < b773faa32b0a98c3eb2b50d96de631681e5d1157
- affected 3cbf5e3c46e66d9b3b6b91099bb720c6cb1be3bc – < 266cddf7bd0f6c79b6c0633aef742a22bf70265b
- affected 6.1.178 – < 6.1.183
- affected 6.6.145 – < 6.6.148
- affected 6.12.97 – < 6.12.101
- affected 6.18.40 – < 6.18.42
- affected 7.1.5 – < 7.1.6
References
References6
- https://git.kernel.org/stable/c/86a9bd8c8f422d5f3079da31e151868902fcc702 (opens in a new tab)
- https://git.kernel.org/stable/c/abeff53233b984571b87582bb588b4b38ef4ea50 (opens in a new tab)
- https://git.kernel.org/stable/c/5b7e5f84d3d4cea10c3764d2da274810a7934228 (opens in a new tab)
- https://git.kernel.org/stable/c/5f4de3c717d34a24d555af581947742980778c02 (opens in a new tab)
- https://git.kernel.org/stable/c/b773faa32b0a98c3eb2b50d96de631681e5d1157 (opens in a new tab)
- https://git.kernel.org/stable/c/266cddf7bd0f6c79b6c0633aef742a22bf70265b (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-55613 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-68427)Record last updated .