CVE-2026-98272
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f | affected | git | 5cefdb7acfc646fbded59ae77dfe0aac4c9e4a3c | Unavailable | None listed |
| 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f | affected | git | 4ac1d5adc4f4dbafbfd270b55cc6d8bf9849d545 | Unavailable | None listed |
| 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f | affected | git | dfd46b5584a5881b131008767950e1ab82713c8c | Unavailable | None listed |
| 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f | affected | git | 6569fd85b0ef9a8a6f20b7eb868420b8c7c0c2a0 | Unavailable | None listed |
| 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f | affected | git | e7f30dcfa6c64033bf9137362517bd248e5be384 | Unavailable | None listed |
| 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f | affected | git | f0e7d62c1eb984dd204095118973c59604144cd8 | Unavailable | None listed |
| 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f | affected | git | 1734c3fc0066e228ce1c11e434b7c2527f0a949a | Unavailable | None listed |
| 7d04b0b13b1175ce0c4bdc77f1278c1f120f874f | affected | git | 14cb1e7702e5cb3c58888f6aed498381a73927d2 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.4 | Unavailable | None listed |
| 5.10.271 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.222 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.54 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.8 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |