7.1

CVE-2026-53132

vsock/virtio: fix potential unbounded skb queue

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)
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.1.63 < 6.2
Linux ≫ Linux Kernel Version >= 6.3.1 < 6.12.94
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.36
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.13
Linux ≫ Linux Kernel Version6.3 Update-
Linux ≫ Linux Kernel Version6.3 Updaterc3
Linux ≫ Linux Kernel Version6.3 Updaterc4
Linux ≫ Linux Kernel Version6.3 Updaterc5
Linux ≫ Linux Kernel Version6.3 Updaterc6
Linux ≫ Linux Kernel Version6.3 Updaterc7
Linux ≫ Linux Kernel Version7.1 Updaterc1
Linux ≫ Linux Kernel Version7.1 Updaterc2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.037
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.1 2.5 4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

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