Description
In the Linux kernel, the following vulnerability has been resolved: crypto: marvell/octeontx - fix DMA cleanup using wrong loop index The sg_cleanup path used list[i] instead of list[j] when unmapping DMA buffers, leaking successfully mapped entries and repeatedly unmapping the failed one.
References8
- git.kernel.org/stable/c/5f99a396f706afc749448659d1565991330e4f71
- git.kernel.org/stable/c/6c721a3e43344f8560ee4ef506fc1f72b4646dcd
- git.kernel.org/stable/c/7891c64c0520519782470ba29bac8a5761e295d8
- git.kernel.org/stable/c/8a0db9fad3c97e6447a92417cb95d7c55eaa9530
- git.kernel.org/stable/c/8d301e5a51173ba56ce4f632a2a33bf6b14b0fcf
- git.kernel.org/stable/c/97f150ba3e372256eabb93bd80c2cf3740077fb5
- git.kernel.org/stable/c/acff30cfc0d72465b51b0bfdf019f1cb54e15314
- git.kernel.org/stable/c/ed374dbc70c10c4a864414b3d9c257faec8fd485
Metrics
- CVSS 3.1
-
10.0
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 56 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.