5.5

CVE-2026-64019

nvme-pci: fix dma mapping leak on data setup error

In the Linux kernel, the following vulnerability has been resolved:

nvme-pci: fix dma mapping leak on data setup error

We're leaking the initial DMA mapping during iteration if we fail to
allocate the tracking descriptor for both PRP and SGL. Unmap the
iterator directly; we can't use the existing unmap helper because it
depends on the tracking descriptor being successfully allocated, so a
new one for an in-use iterator is provided.

The mappings were also leaking when the driver detects an invalid
bio_vec when mapping PRPs, so fix that too.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.17 < 7.0.11
Linux ≫ Linux Kernel Version 7.1 Update rc1
Linux ≫ Linux Kernel Version 7.1 Update rc2
Linux ≫ Linux Kernel Version 7.1 Update rc3
Linux ≫ Linux Kernel Version 7.1 Update rc4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.051
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/e50db059ec8e63bc50b1cc039e2502cb5ea75a70
Patch
https://git.kernel.org/stable/c/1bf86336e4b6cf40873fda47a7fe191446864937
Patch
https://git.kernel.org/stable/c/fba32257979dda14b0d8ed7402490ae0be44972a