cbcvebase.
CVE-2022-49153
published 2025-02-26

CVE-2022-49153: In the Linux kernel, the following vulnerability has been resolved: wireguard: socket: free skb in send6 when ipv6 is disabled I got a memory leak report…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.26%
17.1th percentile
In the Linux kernel, the following vulnerability has been resolved: wireguard: socket: free skb in send6 when ipv6 is disabled I got a memory leak report: unreferenced object 0xffff8881191fc040 (size 232): comm "kworker/u17:0", pid 23193, jiffies 4295238848 (age 3464.870s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] slab_post_alloc_hook+0x84/0x3b0 [] kmem_cache_alloc_node+0x167/0x340 [] __alloc_skb+0x1db/0x200 [] wg_socket_send_buffer_to_peer+0x3d/0xc0 [] wg_packet_send_handshake_initiation+0xfa/0x110 [] wg_packet_handshake_send_worker+0x21/0x30 [] process_one_work+0x2e8/0x770 [] worker_thread+0x4a/0x4b0 [] kthread+0x120/0x160 [] ret_from_fork+0x1f/0x30 In function wg_socket_send_buffer_as_reply_to_skb() or wg_socket_send_ buffer_to_peer(), the semantics of send6() is required to free skb. But when CONFIG_IPV6 is disable, kfree_skb() is missing. This patch adds it to fix this bug.

Affected

15 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.17.3-1 (bookworm)linux 5.17.3-1 (bookworm)
linuxlinux——
linuxlinux>= e7096c131e5161fa3b8e52a650d7719d2857adfd < 096f9d35cac0a0c95ffafc00db84786b665a4837096f9d35cac0a0c95ffafc00db84786b665a4837
linuxlinux>= e7096c131e5161fa3b8e52a650d7719d2857adfd < 402991a9771587acc2947cf6c4d689c5397f2258402991a9771587acc2947cf6c4d689c5397f2258
linuxlinux>= e7096c131e5161fa3b8e52a650d7719d2857adfd < ebcc492f4ba14bae54b898f1016a37b4282558d1ebcc492f4ba14bae54b898f1016a37b4282558d1
linuxlinux>= e7096c131e5161fa3b8e52a650d7719d2857adfd < 0b19bcb753dbfb74710d12bb2761ec5ed706c7260b19bcb753dbfb74710d12bb2761ec5ed706c726
linuxlinux>= e7096c131e5161fa3b8e52a650d7719d2857adfd < bbbf962d9460194993ee1943a793a0a0af4a7fbfbbbf962d9460194993ee1943a793a0a0af4a7fbf
linuxlinux_kernel>= 0 < 5.10.113-15.10.113-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 0 < 5.17.3-15.17.3-1
linuxlinux_kernel>= 5.11 < 5.15.335.15.33
linuxlinux_kernel>= 5.16 < 5.16.195.16.19
linuxlinux_kernel>= 5.17 < 5.17.25.17.2
linuxlinux_kernel>= 5.6 < 5.10.1105.10.110

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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