{
  "cveId": "CVE-2022-49865",
  "url": "https://patchblox.com/security/cve/CVE-2022-49865",
  "summary": "CVE-2022-49865 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49865, released May 1, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ipv6: addrlabel: fix infoleak when sending struc...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network  When copying a \u0060struct ifaddrlblmsg\u0060 to the network, __ifal_reserved remained uninitialized, resulting in a 1-byte infoleak:    BUG: KMSAN: kernel-network-infoleak in __netdev_start_xmit ./include/linux/netdevice.h:4841    __netdev_start_xmit ./include/linux/netdevice.h:4841    netdev_start_xmit ./include/linux/netdevice.h:4857    xmit_one net/core/dev.c:3590    dev_hard_start_xmit\u002B0x1dc/0x800 net/core/dev.c:3606    __dev_queue_xmit\u002B0x17e8/0x4350 net/core/dev.c:4256    dev_queue_xmit ./include/linux/netdevice.h:3009    __netlink_deliver_tap_skb net/netlink/af_netlink.c:307    __netlink_deliver_tap\u002B0x728/0xad0 net/netlink/af_netlink.c:325    netlink_deliver_tap net/netlink/af_netlink.c:338    __netlink_sendskb net/netlink/af_netlink.c:1263    netlink_sendskb\u002B0x1d9/0x200 net/netlink/af_netlink.c:1272    netlink_unicast\u002B0x56d/0xf50 net/netlink/af_netlink.c:1360    nlmsg_unicast ./include/net/netlink.h:1061    rtnl_unicast\u002B0x5a/0x80 net/core/rtnetlink.c:758    ip6addrlbl_get\u002B0xfad/0x10f0 net/ipv6/addrlabel.c:628    rtnetlink_rcv_msg\u002B0xb33/0x1570 net/core/rtnetlink.c:6082   ...   Uninit was created at:    slab_post_alloc_hook\u002B0x118/0xb00 mm/slab.h:742    slab_alloc_node mm/slub.c:3398    __kmem_cache_alloc_node\u002B0x4f2/0x930 mm/slub.c:3437    __do_kmalloc_node mm/slab_common.c:954    __kmalloc_node_track_caller\u002B0x117/0x3d0 mm/slab_common.c:975    kmalloc_reserve net/core/skbuff.c:437    __alloc_skb\u002B0x27a/0xab0 net/core/skbuff.c:509    alloc_skb ./include/linux/skbuff.h:1267    nlmsg_new ./include/net/netlink.h:964    ip6addrlbl_get\u002B0x490/0x10f0 net/ipv6/addrlabel.c:608    rtnetlink_rcv_msg\u002B0xb33/0x1570 net/core/rtnetlink.c:6082    netlink_rcv_skb\u002B0x299/0x550 net/netlink/af_netlink.c:2540    rtnetlink_rcv\u002B0x26/0x30 net/core/rtnetlink.c:6109    netlink_unicast_kernel net/netlink/af_netlink.c:1319    netlink_unicast\u002B0x9ab/0xf50 net/netlink/af_netlink.c:1345    netlink_sendmsg\u002B0xebc/0x10f0 net/netlink/af_netlink.c:1921   ...  This patch ensures that the reserved field is always initialized.",
  "published": "2025-05-01T15:16:11Z",
  "severity": "high",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.00223,
  "epssPercentile": 0.13035,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49865",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49865",
      "released": "2025-05-01T15:16:11Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49865",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49865",
      "released": "2025-05-01T15:16:11Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49865",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49865",
      "released": "2025-05-01T15:16:11Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}