net: mana: Sync page pool RX frags for CPU
In the Linux kernel, the following vulnerability has been resolved: net: mana: Sync page pool RX frags for CPU MANA allocates RX buffers from page pool fragments when frag_count is greater than 1. In that case the buffers remain DMA mapped by page pool and the RX completion path does not call dma_unmap_single(). As a result, the implicit sync-for-CPU normally performed by dma_unmap_single() is missing before the packet data is passed to the networking stack. This breaks RX on configurations which require explicit DMA syncing, for example when booted with swiotlb=force. Fix this by recording the page pool page and DMA sync offset when the RX buffer is allocated, and syncing the received packet range for CPU access before handing the RX buffer to the stack.
CVE-2026-72064
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-72064
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "730ff06d3f5cc2ce0348414b78c10528b767d4a3",
"lessThan": "845c959178ccab020b67bed7f4eae3058135ec80",
"versionType": "git"
},
{
"status": "affected",
"version": "730ff06d3f5cc2ce0348414b78c10528b767d4a3",
"lessThan": "bc650dd5ce6434286b96e2b26a41af81f679cc7c",
"versionType": "git"
},
{
"status": "affected",
"version": "730ff06d3f5cc2ce0348414b78c10528b767d4a3",
"lessThan": "c72a0f09c57f92113df69f9b902d11c9e4b132f5",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/microsoft/mana/mana_en.c",
"include/net/mana/mana.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/microsoft/mana/mana_en.c",
"include/net/mana/mana.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-72064
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #41855 · Revision 1
- Added to Heist Feed
- Publisher date