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Vulnerability · Published Jun 18, 2025 · Assigned by Linux

CVE-2022-49959openvswitch: fix memory leak at failed datapath creation

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 91.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: openvswitch: fix memory leak at failed datapath creation ovs_dp_cmd_new()->ovs_dp_change()->ovs_dp_set_upcall_portids() allocates array via kmalloc. If for some reason new_vport() fails during ovs_dp_cmd_new() dp->upcall_portids must be freed. Add missing kfree. Kmemleak example: unreferenced object 0xffff88800c382500 (size 64): comm "dump_state", pid 323, jiffies 4294955418 (age 104.347s) hex dump (first 32 bytes): 5e c2 79 e4 1f 7a 38 c7 09 21 38 0c 80 88 ff ff ^.y..z8..!8..... 03 00 00 00 0a 00 00 00 14 00 00 00 28 00 00 00 ............(... backtrace: [<0000000071bebc9f>] ovs_dp_set_upcall_portids+0x38/0xa0 [<000000000187d8bd>] ovs_dp_change+0x63/0xe0 [<000000002397e446>] ovs_dp_cmd_new+0x1f0/0x380 [<00000000aa06f36e>] genl_family_rcv_msg_doit+0xea/0x150 [<000000008f583bc4>] genl_rcv_msg+0xdc/0x1e0 [<00000000fa10e377>] netlink_rcv_skb+0x50/0x100 [<000000004959cece>] genl_rcv+0x24/0x40 [<000000004699ac7f>] netlink_unicast+0x23e/0x360 [<00000000c153573e>] netlink_sendmsg+0x24e/0x4b0 [<000000006f4aa380>] sock_sendmsg+0x62/0x70 [<00000000d0068654>] ____sys_sendmsg+0x230/0x270 [<0000000012dacf7d>] ___sys_sendmsg+0x88/0xd0 [<0000000011776020>] __sys_sendmsg+0x59/0xa0 [<000000002e8f2dc1>] do_syscall_64+0x3b/0x90 [<000000003243e7cb>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.0.2-1DEBIAN-CVE-2022-49959
Debian:13linux6.0.2-1DEBIAN-CVE-2022-49959
Debian:14linux6.0.2-1DEBIAN-CVE-2022-49959
Ubuntu:22.04:LTSlinux5.15.0-57.63UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-aws5.15.0-1027.31UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-azure5.15.0-1030.37UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1030.37.1UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-gcp5.15.0-1026.33UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-gke5.15.0-1024.29UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1012.16UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-ibm5.15.0-1022.25UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1023.28UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-kvm5.15.0-1025.30UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-57.63UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1015.15UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-oracle5.15.0-1026.32UBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-raspi5.15.0-1022.24UBUNTU-CVE-2022-49959
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49959
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49959
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49959
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49959

Affected products (as reported)

VendorProductVersions
Linux Linux b83d23a2a38b1770da0491257ae81d52307f7816 – before ca54b2bfaab385778e55a9fd33f6c31e7f743b48b83d23a2a38b1770da0491257ae81d52307f7816 – before c0c1c0241917459644326a1a3102207c871ae159b83d23a2a38b1770da0491257ae81d52307f7816 – before a87406f4adee9c53b311d8a1ba2849c69e29a6d0
Linux Linux 5.15

References