Description

In the Linux kernel, the following vulnerability has been resolved:

vsock: Fix sk_error_queue memory leak

Kernel queues MSG_ZEROCOPY completion notifications on the error queue.
Where they remain, until explicitly recv()ed. To prevent memory leaks,
clean up the queue when the socket is destroyed.

unreferenced object 0xffff8881028beb00 (size 224):
comm "vsock_test", pid 1218, jiffies 4294694897
hex dump (first 32 bytes):
90 b0 21 17 81 88 ff ff 90 b0 21 17 81 88 ff ff ..!.......!.....
00 00 00 00 00 00 00 00 00 b0 21 17 81 88 ff ff ..........!.....
backtrace (crc 6c7031ca):
[] kmem_cache_alloc_node_noprof+0x2f7/0x370
[] __alloc_skb+0x132/0x180
[] sock_omalloc+0x4b/0x80
[] msg_zerocopy_realloc+0x9e/0x240
[] virtio_transport_send_pkt_info+0x412/0x4c0
[] virtio_transport_stream_enqueue+0x43/0x50
[] vsock_connectible_sendmsg+0x373/0x450
[] ____sys_sendmsg+0x365/0x3a0
[] ___sys_sendmsg+0x84/0xd0
[] __sys_sendmsg+0x47/0x80
[] do_syscall_64+0x93/0x180
[] entry_SYSCALL_64_after_hwframe+0x76/0x7e

Classification

CVE ID: CVE-2024-53118

CVSS Base Severity: LOW

CVSS Base Score: 0.0

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.44% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://git.kernel.org/stable/c/bea4779a45f49275b1e1b1bd9de03cd3727244d8
https://git.kernel.org/stable/c/fbf7085b3ad1c7cc0677834c90f985f1b4f77a33

Timeline