CVE-2026-68474powerpc/spufs: fix out-of-bounds access in spufs_mem_mmap_access()
- 7.8HighCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 94% 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: powerpc/spufs: fix out-of-bounds access in spufs_mem_mmap_access() spufs_mem_mmap_access() computes the local store offset as address - vma->vm_start, but bounds-checks it against vma->vm_end instead of the local store size. On 64-bit, offset is always well below vma->vm_end, so the clamp never fires and len stays unbounded against the LS_SIZE buffer returned by ctx->ops->get_ls(). Reject offsets at or beyond LS_SIZE and clamp len to the remaining space, mirroring the guard already used by spufs_mem_mmap_fault() and spufs_ps_fault().
Timeline
ID reserved
By Linux
- 16 days later
· 16 days later
Published
- 2 days later
· 2 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
| 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)
- 0.16% · top 94% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected a352894d07059649398c4769dc8b645e1a1dad88 – < aa7aa8ba40c089762d821e3987aaae19e1f5705c
- affected a352894d07059649398c4769dc8b645e1a1dad88 – < d479a7711f8ff127946467b910d947bd971b94ed
- affected a352894d07059649398c4769dc8b645e1a1dad88 – < 9d3569bfdceda69d5ffd5148901e57b69954d9ef
- affected a352894d07059649398c4769dc8b645e1a1dad88 – < d97a8f3668949a8a9d1f6202f8c53446f2d89aa7
- affected a352894d07059649398c4769dc8b645e1a1dad88 – < 913feef74354c653f10ecd4631df7618a95c49c2
- affected a352894d07059649398c4769dc8b645e1a1dad88 – < 3c1e92f75e11a11492b8cb901fceeb9f16ae6415
- affected a352894d07059649398c4769dc8b645e1a1dad88 – < 4efa313b15925bdd864784865d6585174979294b
- affected a352894d07059649398c4769dc8b645e1a1dad88 – < 47b87f469a35b5ffc81c16eee6b13a9b6c8d55c6
- affected 2.6.27
- unaffected < 2.6.27
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/aa7aa8ba40c089762d821e3987aaae19e1f5705c (opens in a new tab)
- https://git.kernel.org/stable/c/d479a7711f8ff127946467b910d947bd971b94ed (opens in a new tab)
- https://git.kernel.org/stable/c/9d3569bfdceda69d5ffd5148901e57b69954d9ef (opens in a new tab)
- https://git.kernel.org/stable/c/d97a8f3668949a8a9d1f6202f8c53446f2d89aa7 (opens in a new tab)
- https://git.kernel.org/stable/c/913feef74354c653f10ecd4631df7618a95c49c2 (opens in a new tab)
- https://git.kernel.org/stable/c/3c1e92f75e11a11492b8cb901fceeb9f16ae6415 (opens in a new tab)
- https://git.kernel.org/stable/c/4efa313b15925bdd864784865d6585174979294b (opens in a new tab)
- https://git.kernel.org/stable/c/47b87f469a35b5ffc81c16eee6b13a9b6c8d55c6 (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-2026-59096 (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-2026-68474)Record last updated .