CVE-2026-93061gpu: host1x: Avoid stack over-read in debug output helpers
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 88% 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: Avoid stack over-read in debug output helpers host1x_debug_output() and host1x_debug_cont() used vsnprintf(), which returns the length the formatted string would have reached with an unbounded buffer. That return value was passed straight to o->fn as the number of bytes to emit. This could cause a read past end of the output buffer if a call to host1x_debug_* produced a string longer than 256 bytes. This only affected the debugfs files as the printk debug sink ignores the number of bytes. In practice, this is very unlikely to occur. Fix by switching to vscnprintf(), which returns the number of bytes actually written.
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 days 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 6236451d83a720072053855fa63d51934024a707 – < d7a560dc912756fd8b39b28b10818d931e863d2d
- affected 6236451d83a720072053855fa63d51934024a707 – < 41517c46002afd717f0f2d0975c740dd610f87fe
- affected 6236451d83a720072053855fa63d51934024a707 – < ebab3a25a0403bcbc0c40ef77d69d23270e45547
- affected 6236451d83a720072053855fa63d51934024a707 – < 4f9f0afdbdf513a49065207ff6b7e1d15051175a
- affected 6236451d83a720072053855fa63d51934024a707 – < 819dd96a6571f2b12496b080e5187ba3fa897232
- affected 6236451d83a720072053855fa63d51934024a707 – < 9ad7a6ccc7b839247663d57d3dbb4481dec492de
- affected 6236451d83a720072053855fa63d51934024a707 – < b00290d1dc23a5ef9a0d3103aad1fe2274e86569
- affected 6236451d83a720072053855fa63d51934024a707 – < bc17ac285fb708f22a8fa2c0ed32eceb1d37e6d6
- affected 3.10
- unaffected < 3.10
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/d7a560dc912756fd8b39b28b10818d931e863d2d (opens in a new tab)
- https://git.kernel.org/stable/c/41517c46002afd717f0f2d0975c740dd610f87fe (opens in a new tab)
- https://git.kernel.org/stable/c/ebab3a25a0403bcbc0c40ef77d69d23270e45547 (opens in a new tab)
- https://git.kernel.org/stable/c/4f9f0afdbdf513a49065207ff6b7e1d15051175a (opens in a new tab)
- https://git.kernel.org/stable/c/819dd96a6571f2b12496b080e5187ba3fa897232 (opens in a new tab)
- https://git.kernel.org/stable/c/9ad7a6ccc7b839247663d57d3dbb4481dec492de (opens in a new tab)
- https://git.kernel.org/stable/c/b00290d1dc23a5ef9a0d3103aad1fe2274e86569 (opens in a new tab)
- https://git.kernel.org/stable/c/bc17ac285fb708f22a8fa2c0ed32eceb1d37e6d6 (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-2026-82171 (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-2026-93061)Record last updated .