Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — ibmvnic: Add tx check to prevent skb leak
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0053 42.7 —
AFFECTED
Product Versions Fixed
Linux 65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8 – —
Linux 5.14 – 6.1.101
TIMELINE
Jul 12 Reserved by Linux
Jul 29 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2024-41066 (Linux). CVSS 7.5 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
ibmvnic: Add tx check to prevent skb leak
Below is a summary of how the driver stores a reference to an skb during
transmit:
tx_buff[free_map[consumer_index]]->skb = new_skb;
free_map[consumer_index] = IBMVNIC_INVALID_MAP;
consumer_index ++;
Where variable data looks like this:
free_map == [4, IBMVNIC_INVALID_MAP, IBMVNIC_INVALID_MAP, 0, 3]
consumer_index^
tx_buff == [skb=null, skb=<ptr>, skb=<ptr>, skb=null, skb=null]
The driver has checks to ensure that free_map[consumer_index] pointed to
a valid index but there was no check to ensure that this index pointed
to an unused/null skb address. So, if, by some chance, our free_map and
tx_buff lists become out of sync then we were previously risking an
skb memory leak. This could then cause tcp congestion control to stop
sending packets, eventually leading to ETIMEDOUT.
Therefore, add a conditional to ensure that the skb address is null. If
not then warn the user (because this is still a bug that should be
patched) and free the old pointer to prevent memleak/tcp problems.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| July 12, 2024 | Reserved | Reserved by Linux |
| July 29, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2024-41066 (Linux). CVSS 7.5 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 65d6470d139a6c1655fccb5cbacbeaba8e8ad2f8 | — |
| Linux | Linux | — | 5.14 | 6.1.101 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-41066 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.