{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"568a47ff756f913e8b374c2af9d22cd2c772c744","status":"affected","version":"2a8cc6c89039e0530a3335954253b76ed0f9339a","versionType":"git"},{"lessThan":"0f85b7ae7c4b5d7b4bbf7ac653a733c181a8a2bf","status":"affected","version":"2a8cc6c89039e0530a3335954253b76ed0f9339a","versionType":"git"},{"lessThan":"6d26d0587abccb9835382a0b53faa7b9b1cd83e3","status":"affected","version":"2a8cc6c89039e0530a3335954253b76ed0f9339a","versionType":"git"},{"lessThan":"58cd7fdc8c1e6c7873acc08f190069fed88d1c12","status":"affected","version":"2a8cc6c89039e0530a3335954253b76ed0f9339a","versionType":"git"},{"lessThan":"a033b86c7f7621fde31f0364af8986f43b44914f","status":"affected","version":"2a8cc6c89039e0530a3335954253b76ed0f9339a","versionType":"git"},{"lessThan":"2acb2779b147decd300c117683d5a32ce61c75d6","status":"affected","version":"2a8cc6c89039e0530a3335954253b76ed0f9339a","versionType":"git"},{"lessThan":"49e92ba5ecd7d72ba369dde2ccff738edd028a47","status":"affected","version":"2a8cc6c89039e0530a3335954253b76ed0f9339a","versionType":"git"},{"lessThan":"c23fb2c82267638f9d206cb96bb93e1f93ad7828","status":"affected","version":"2a8cc6c89039e0530a3335954253b76ed0f9339a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"2.6.25"},{"lessThan":"2.6.25","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"4.9.*","status":"unaffected","version":"4.9.334","versionType":"semver"},{"lessThanOrEqual":"4.14.*","status":"unaffected","version":"4.14.300","versionType":"semver"},{"lessThanOrEqual":"4.19.*","status":"unaffected","version":"4.19.267","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.225","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.155","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.79","versionType":"semver"},{"lessThanOrEqual":"6.0.*","status":"unaffected","version":"6.0.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.1","versionType":"original_commit_for_fix"}]}],"cveId":"CVE-2022-49865","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network\n\nWhen copying a `struct ifaddrlblmsg` to the network, __ifal_reserved\nremained uninitialized, resulting in a 1-byte infoleak:\n\n  BUG: KMSAN: kernel-network-infoleak in __netdev_start_xmit ./include/linux/netdevice.h:4841\n   __netdev_start_xmit ./include/linux/netdevice.h:4841\n   netdev_start_xmit ./include/linux/netdevice.h:4857\n   xmit_one net/core/dev.c:3590\n   dev_hard_start_xmit+0x1dc/0x800 net/core/dev.c:3606\n   __dev_queue_xmit+0x17e8/0x4350 net/core/dev.c:4256\n   dev_queue_xmit ./include/linux/netdevice.h:3009\n   __netlink_deliver_tap_skb net/netlink/af_netlink.c:307\n   __netlink_deliver_tap+0x728/0xad0 net/netlink/af_netlink.c:325\n   netlink_deliver_tap net/netlink/af_netlink.c:338\n   __netlink_sendskb net/netlink/af_netlink.c:1263\n   netlink_sendskb+0x1d9/0x200 net/netlink/af_netlink.c:1272\n   netlink_unicast+0x56d/0xf50 net/netlink/af_netlink.c:1360\n   nlmsg_unicast ./include/net/netlink.h:1061\n   rtnl_unicast+0x5a/0x80 net/core/rtnetlink.c:758\n   ip6addrlbl_get+0xfad/0x10f0 net/ipv6/addrlabel.c:628\n   rtnetlink_rcv_msg+0xb33/0x1570 net/core/rtnetlink.c:6082\n  ...\n  Uninit was created at:\n   slab_post_alloc_hook+0x118/0xb00 mm/slab.h:742\n   slab_alloc_node mm/slub.c:3398\n   __kmem_cache_alloc_node+0x4f2/0x930 mm/slub.c:3437\n   __do_kmalloc_node mm/slab_common.c:954\n   __kmalloc_node_track_caller+0x117/0x3d0 mm/slab_common.c:975\n   kmalloc_reserve net/core/skbuff.c:437\n   __alloc_skb+0x27a/0xab0 net/core/skbuff.c:509\n   alloc_skb ./include/linux/skbuff.h:1267\n   nlmsg_new ./include/net/netlink.h:964\n   ip6addrlbl_get+0x490/0x10f0 net/ipv6/addrlabel.c:608\n   rtnetlink_rcv_msg+0xb33/0x1570 net/core/rtnetlink.c:6082\n   netlink_rcv_skb+0x299/0x550 net/netlink/af_netlink.c:2540\n   rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6109\n   netlink_unicast_kernel net/netlink/af_netlink.c:1319\n   netlink_unicast+0x9ab/0xf50 net/netlink/af_netlink.c:1345\n   netlink_sendmsg+0xebc/0x10f0 net/netlink/af_netlink.c:1921\n  ...\n\nThis patch ensures that the reserved field is always initialized.","epss":{"date":"2026-11-05","percentile":0.13059,"score":0.00223},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793908810037,"publishedAt":1746108617673,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/568a47ff756f913e8b374c2af9d22cd2c772c744"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/0f85b7ae7c4b5d7b4bbf7ac653a733c181a8a2bf"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/6d26d0587abccb9835382a0b53faa7b9b1cd83e3"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/58cd7fdc8c1e6c7873acc08f190069fed88d1c12"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/a033b86c7f7621fde31f0364af8986f43b44914f"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/2acb2779b147decd300c117683d5a32ce61c75d6"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/49e92ba5ecd7d72ba369dde2ccff738edd028a47"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/c23fb2c82267638f9d206cb96bb93e1f93ad7828"}],"remediation":[],"revision":"55678764d5a3088e791157a690f1c95e91ea8caa468ffee092a0fdfc28697f58","sources":[{"modifiedAt":1793908810037,"name":"CNA: Linux","retrievedAt":1793909469856,"url":"https://www.cve.org/CVERecord?id=CVE-2022-49865"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793909485192,"url":"https://api.first.org/data/v1/epss?cve=CVE-2022-49865"}],"ssvc":{"assessedAt":1793908252329,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"ipv6: addrlabel: fix infoleak when sending struct ifaddrlblmsg to network","updatedAt":1793909485192}