CVE-2026-90409drm/panthor: Add vm_bind region with kbo range overlap check
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% 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: drm/panthor: Add vm_bind region with kbo range overlap check When a VM is created, caller has to specify the range of the address space carve-out set aside for mapping kernel BO's. That means vm_bind mappings of UM-exposed BO's should not intersect with that region, but at the moment we're not checking this. At first, I thought of giving these values to drm_gpuvm_init() through its reserve_{offset, range} arguments, but it turns out that is meant for VM address spans that are not managed through the usual drm_gpuvm split/merge circuit, so storing the end of the user VA range at VM creation time and doing a quick check in the vm_bind ioctl path was the simplest workaround. The new check also makes sure vm_bind range doesn't overflow the size of a 64-bit unsigned integer. That was already being done further down the call stack inside drm_gpuvm_sm_map -> drm_gpuvm_range_valid, but it's best to fail early in the driver before GPUVM functions are invoked so that we won't waste time allocating vm_bind context resources.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 34 days later
· 34 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)
- 0.21% · top 89% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 647810ec247641eb5aec8caef818919a4518a0b1 – < 276753aaad65e6f7dac7989a600c1c2d3a382c1a
- affected 647810ec247641eb5aec8caef818919a4518a0b1 – < f2be47fa8e225968eb66863657143fe900ec4bca
- affected 647810ec247641eb5aec8caef818919a4518a0b1 – < 761cf9c63274a5b711c3dc829601723215710d2d
- affected 647810ec247641eb5aec8caef818919a4518a0b1 – < 985f5e12f3cdf43030e13c2bbd154913133b5c3f
- affected 6.10
- unaffected < 6.10
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.57 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/276753aaad65e6f7dac7989a600c1c2d3a382c1a (opens in a new tab)
- https://git.kernel.org/stable/c/f2be47fa8e225968eb66863657143fe900ec4bca (opens in a new tab)
- https://git.kernel.org/stable/c/761cf9c63274a5b711c3dc829601723215710d2d (opens in a new tab)
- https://git.kernel.org/stable/c/985f5e12f3cdf43030e13c2bbd154913133b5c3f (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-2026-82070 (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)
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[](https://cveledger.app/cve/CVE-2026-90409)Record last updated .