{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49662",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-02-26T02:21:30.435Z",
        "datePublished": "2025-02-26T02:23:58.824Z",
        "dateUpdated": "2026-07-24T14:33:11.583Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-24T14:33:11.583Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: fix lockdep splat in in6_dump_addrs()\n\nAs reported by syzbot, we should not use rcu_dereference()\nwhen rcu_read_lock() is not held.\n\nWARNING: suspicious RCU usage\n5.19.0-rc2-syzkaller #0 Not tainted\n\nnet/ipv6/addrconf.c:5175 suspicious rcu_dereference_check() usage!\n\nother info that might help us debug this:\n\nrcu_scheduler_active = 2, debug_locks = 1\n1 lock held by syz-executor326/3617:\n #0: ffffffff8d5848e8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0xae/0xc20 net/netlink/af_netlink.c:2223\n\nstack backtrace:\nCPU: 0 PID: 3617 Comm: syz-executor326 Not tainted 5.19.0-rc2-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nCall Trace:\n <TASK>\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n in6_dump_addrs+0x12d1/0x1790 net/ipv6/addrconf.c:5175\n inet6_dump_addr+0x9c1/0xb50 net/ipv6/addrconf.c:5300\n netlink_dump+0x541/0xc20 net/netlink/af_netlink.c:2275\n __netlink_dump_start+0x647/0x900 net/netlink/af_netlink.c:2380\n netlink_dump_start include/linux/netlink.h:245 [inline]\n rtnetlink_rcv_msg+0x73e/0xc90 net/core/rtnetlink.c:6046\n netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501\n netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345\n netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:734\n ____sys_sendmsg+0x6eb/0x810 net/socket.c:2492\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2546\n __sys_sendmsg net/socket.c:2575 [inline]\n __do_sys_sendmsg net/socket.c:2584 [inline]\n __se_sys_sendmsg net/socket.c:2582 [inline]\n __x64_sys_sendmsg+0x132/0x220 net/socket.c:2582\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x46/0xb0"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv6/addrconf.c"
                    ],
                    "versions": [
                        {
                            "version": "676457fe5ad19517a8b21d1c3f4d23512118f6a3",
                            "lessThan": "ea18594da69a09f68491da57f9fa09f003efbbc7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "88e2ca3080947fe22eb520c1f8231e79a105d011",
                            "lessThan": "2930ee1a166df0e12fe9fec4b79cc3dc9634ae45",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "88e2ca3080947fe22eb520c1f8231e79a105d011",
                            "lessThan": "b39fda51c32dd879451e0119881f31493bf83283",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "88e2ca3080947fe22eb520c1f8231e79a105d011",
                            "lessThan": "4e43e64d0f1332fcc503babad4dc31aead7131ca",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ipv6/addrconf.c"
                    ],
                    "versions": [
                        {
                            "version": "5.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.53",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.18.10",
                            "lessThanOrEqual": "5.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.19",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "5.15.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "5.18.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.13",
                                    "versionEndExcluding": "5.19"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ea18594da69a09f68491da57f9fa09f003efbbc7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2930ee1a166df0e12fe9fec4b79cc3dc9634ae45"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b39fda51c32dd879451e0119881f31493bf83283"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4e43e64d0f1332fcc503babad4dc31aead7131ca"
                }
            ],
            "title": "ipv6: fix lockdep splat in in6_dump_addrs()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}