5.5

CVE-2024-53118

vsock: Fix sk_error_queue memory leak

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):
    [<ffffffff81418ef7>] kmem_cache_alloc_node_noprof+0x2f7/0x370
    [<ffffffff81d35882>] __alloc_skb+0x132/0x180
    [<ffffffff81d2d32b>] sock_omalloc+0x4b/0x80
    [<ffffffff81d3a8ae>] msg_zerocopy_realloc+0x9e/0x240
    [<ffffffff81fe5cb2>] virtio_transport_send_pkt_info+0x412/0x4c0
    [<ffffffff81fe6183>] virtio_transport_stream_enqueue+0x43/0x50
    [<ffffffff81fe0813>] vsock_connectible_sendmsg+0x373/0x450
    [<ffffffff81d233d5>] ____sys_sendmsg+0x365/0x3a0
    [<ffffffff81d246f4>] ___sys_sendmsg+0x84/0xd0
    [<ffffffff81d26f47>] __sys_sendmsg+0x47/0x80
    [<ffffffff820d3df3>] do_syscall_64+0x93/0x180
    [<ffffffff8220012b>] entry_SYSCALL_64_after_hwframe+0x76/0x7e
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.7 < 6.11.10
Linux ≫ Linux Kernel Version 6.12 Update rc1
Linux ≫ Linux Kernel Version 6.12 Update rc2
Linux ≫ Linux Kernel Version 6.12 Update rc3
Linux ≫ Linux Kernel Version 6.12 Update rc4
Linux ≫ Linux Kernel Version 6.12 Update rc5
Linux ≫ Linux Kernel Version 6.12 Update rc6
Linux ≫ Linux Kernel Version 6.12 Update rc7
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.104
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA-ADP 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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/bea4779a45f49275b1e1b1bd9de03cd3727244d8
Patch
https://git.kernel.org/stable/c/fbf7085b3ad1c7cc0677834c90f985f1b4f77a33
Patch