net: mvpp2: prevent buffer overflow in page_pool allocation
In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: prevent buffer overflow in page_pool allocation The per‑processor buffering scheme is supported only if the number of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS (8). This is already checked in mvpp2_probe() during the initial activation of percpu_pools. However, mvpp2_change_mtu() may later call mvpp2_bm_switch_buffers(priv, true) without this check, which can lead to an out-of-bounds access in the priv->page_pool array in mvpp2_bm_init(). The array is sized to hold MVPP2_PORT_MAX_RXQ entries, and mvpp2_get_nrxqs() may return exactly that value. The per-CPU scheme then doubles it to nrxqs * 2, exceeding the array bounds. Check that the hardware version is MVPP22 or newer and that the number of pools (nrxqs * 2) does not exceed MVPP2_BM_MAX_POOLS before switching to per-CPU mode. Found by Linux Verification Center (linuxtesting.org) with SVACE.
CVE-2026-98272
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-2026-98272
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": "7d04b0b13b1175ce0c4bdc77f1278c1f120f874f",
"lessThan": "5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c",
"versionType": "git"
},
{
"status": "affected",
"version": "7d04b0b13b1175ce0c4bdc77f1278c1f120f874f",
"lessThan": "4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545",
"versionType": "git"
},
{
"status": "affected",
"version": "7d04b0b13b1175ce0c4bdc77f1278c1f120f874f",
"lessThan": "dfd46b5584a5881b131008767950e1ab82713c8c",
"versionType": "git"
},
{
"status": "affected",
"version": "7d04b0b13b1175ce0c4bdc77f1278c1f120f874f",
"lessThan": "6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0",
"versionType": "git"
},
{
"status": "affected",
"version": "7d04b0b13b1175ce0c4bdc77f1278c1f120f874f",
"lessThan": "e7f30dcfa6c64033bf9137362517bd248e5be384",
"versionType": "git"
},
{
"status": "affected",
"version": "7d04b0b13b1175ce0c4bdc77f1278c1f120f874f",
"lessThan": "f0e7d62c1eb984dd204095118973c59604144cd8",
"versionType": "git"
},
{
"status": "affected",
"version": "7d04b0b13b1175ce0c4bdc77f1278c1f120f874f",
"lessThan": "1734c3fc0066e228ce1c11e434b7c2527f0a949a",
"versionType": "git"
},
{
"status": "affected",
"version": "7d04b0b13b1175ce0c4bdc77f1278c1f120f874f",
"lessThan": "14cb1e7702e5cb3c58888f6aed498381a73927d2",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98272
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38349 · Revision 1
- Added to Heist Feed
- Publisher date