CVE-2026-53132

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)

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://git.kernel.org/stable/c/059b7dbd20a6f0c539a45ddff1573cb8946685b5	Patch
https://git.kernel.org/stable/c/100d5b2ffdc6468b9e48532641f29e83efdcb63c	Patch
https://git.kernel.org/stable/c/1eca304f97a34ed5e921e1f0e06c8b241f25bf12	Patch
https://git.kernel.org/stable/c/9bdc637fde66b63d6cad0caacd034888bb7bf5f5	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.3:-::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc3::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc4::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc5::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc6::::::
	cpe:2.3:o:linux:linux_kernel:6.3:rc7::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc2::::::

History

19 Oct 2026, 20:19

Type	Values Removed	Values Added
CWE		CWE-400

Information

Published : 2026-06-25 09:16

Updated : 2026-10-19 20:19

NVD link : CVE-2026-53132

Mitre link : CVE-2026-53132

CVE.ORG link : CVE-2026-53132

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

CWE-400

Uncontrolled Resource Consumption

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