Answer in brief
CVE-2026-53132 records a High severity (CVSS 7.1) vulnerability in vsock/virtio: fix potential unbounded skb queue. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=077706165717686a2a6a71405fef036cd5b37ae0 <1eca304f97a34ed5e921e1f0e06c8b241f25bf12 || >=077706165717686a2a6a71405fef036cd5b37ae0 <9bdc637fde66b63d6cad0caacd034888bb7bf5f5 || >=077706165717686a2a6a71405fef036cd5b37ae0 <100d5b2ffdc6468b9e48532641f29e83efdcb63c || >=077706165717686a2a6a71405fef036cd5b37ae0 <059b7dbd20a6f0c539a45ddff1573cb8946685b5 || 5852a2b573f7a3a29df46296e56aa3491e589cdf || >=6.1.63 <6.2 | 1eca304f97a34ed5e921e1f0e06c8b241f25bf12, 9bdc637fde66b63d6cad0caacd034888bb7bf5f5, 100d5b2ffdc6468b9e48532641f29e83efdcb63c, 059b7dbd20a6f0c539a45ddff1573cb8946685b5, 6.2 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential unbounded skb queue virtio_transport_inc_rx_pkt() checks vvs->rx_bytes + len > vvs->buf_alloc. virtio_transport_recv_enqueue() skips coalescing for packets with VIRTIO_VSOCK_SEQ_EOM. If fed with packets with len == 0 and VIRTIO_VSOCK_SEQ_EOM, a very large number of packets can be queued because vvs->rx_bytes stays at 0. Fix this by estimating the skb metadata size: (Number of skbs in the queue) * SKB_TRUESIZE(0)
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-53132 records a High severity (CVSS 7.1) vulnerability in vsock/virtio: fix potential unbounded skb queue. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=077706165717686a2a6a71405fef036cd5b37ae0 <1eca304f97a34ed5e921e1f0e06c8b241f25bf12 || >=077706165717686a2a6a71405fef036cd5b37ae0 <9bdc637fde66b63d6cad0caacd034888bb7bf5f5 || >=077706165717686a2a6a71405fef036cd5b37ae0 <100d5b2ffdc6468b9e48532641f29e83efdcb63c || >=077706165717686a2a6a71405fef036cd5b37ae0 <059b7dbd20a6f0c539a45ddff1573cb8946685b5 || 5852a2b573f7a3a29df46296e56aa3491e589cdf || >=6.1.63 <6.2 | 1eca304f97a34ed5e921e1f0e06c8b241f25bf12, 9bdc637fde66b63d6cad0caacd034888bb7bf5f5, 100d5b2ffdc6468b9e48532641f29e83efdcb63c, 059b7dbd20a6f0c539a45ddff1573cb8946685b5, 6.2 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix potential unbounded skb queue virtio_transport_inc_rx_pkt() checks vvs->rx_bytes + len > vvs->buf_alloc. virtio_transport_recv_enqueue() skips coalescing for packets with VIRTIO_VSOCK_SEQ_EOM. If fed with packets with len == 0 and VIRTIO_VSOCK_SEQ_EOM, a very large number of packets can be queued because vvs->rx_bytes stays at 0. Fix this by estimating the skb metadata size: (Number of skbs in the queue) * SKB_TRUESIZE(0)
Quoted source text, attributed separately from HOL analysis.