CVE - CVE-2021-47024

CVE-ID
CVE-2021-47024	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: free queued packets when closing socket As reported by syzbot [1], there is a memory leak while closing the socket. We partially solved this issue with commit ac03046ece2b ("vsock/virtio: free packets during the socket release"), but we forgot to drain the RX queue when the socket is definitely closed by the scheduled work. To avoid future issues, let's use the new virtio_transport_remove_sock() to drain the RX queue before removing the socket from the af_vsock lists calling vsock_remove_sock(). [1] https://syzkaller.appspot.com/bug?extid=24452624fc4c571eedd9
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/27691665145e74a45034a9dccf1150cf1894763a URL:https://git.kernel.org/stable/c/27691665145e74a45034a9dccf1150cf1894763a MISC:https://git.kernel.org/stable/c/37c38674ef2f8d7e8629e5d433c37d6c1273d16b URL:https://git.kernel.org/stable/c/37c38674ef2f8d7e8629e5d433c37d6c1273d16b MISC:https://git.kernel.org/stable/c/8432b8114957235f42e070a16118a7f750de9d39 URL:https://git.kernel.org/stable/c/8432b8114957235f42e070a16118a7f750de9d39 MISC:https://git.kernel.org/stable/c/b605673b523fe33abeafb2136759bcbc9c1e6ebf URL:https://git.kernel.org/stable/c/b605673b523fe33abeafb2136759bcbc9c1e6ebf
Assigning CNA
kernel.org
Date Record Created
20240227	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240227)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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