{"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": "2026-05-11T19:04:16.051Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:04:16.051Z"}, "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": "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/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"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7D915EC6-122B-4BA6-A29F-C73B3AAB8B49", "versionEndExcluding": "5.15.53", "versionStartIncluding": "5.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8261A22B-B156-4045-AE8E-AA9E95E7930C", "versionEndExcluding": "5.18.10", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*", "matchCriteriaId": "A8C30C2D-F82D-4D37-AB48-D76ABFBD5377", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*", "matchCriteriaId": "BF8547FC-C849-4F1B-804B-A93AE2F04A92", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*", "matchCriteriaId": "F3068028-F453-4A1C-B80F-3F5609ACEF60", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*", "matchCriteriaId": "2E9C0DB0-D349-489F-A3D6-B77214E93A8A", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv6: fix lockdep splat in in6_dump_addrs() As reported by syzbot, we should not use rcu_dereference() when rcu_read_lock() is not held. WARNING: suspicious RCU usage 5.19.0-rc2-syzkaller #0 Not tainted net/ipv6/addrconf.c:5175 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor326/3617: #0: ffffffff8d5848e8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0xae/0xc20 net/netlink/af_netlink.c:2223 stack backtrace: CPU: 0 PID: 3617 Comm: syz-executor326 Not tainted 5.19.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 in6_dump_addrs+0x12d1/0x1790 net/ipv6/addrconf.c:5175 inet6_dump_addr+0x9c1/0xb50 net/ipv6/addrconf.c:5300 netlink_dump+0x541/0xc20 net/netlink/af_netlink.c:2275 __netlink_dump_start+0x647/0x900 net/netlink/af_netlink.c:2380 netlink_dump_start include/linux/netlink.h:245 [inline] rtnetlink_rcv_msg+0x73e/0xc90 net/core/rtnetlink.c:6046 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2492 ___sys_sendmsg+0xf3/0x170 net/socket.c:2546 __sys_sendmsg net/socket.c:2575 [inline] __do_sys_sendmsg net/socket.c:2584 [inline] __se_sys_sendmsg net/socket.c:2582 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2582 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 "}], "id": "CVE-2022-49662", "lastModified": "2025-10-23T15:58:38.043", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:01:41.230", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2930ee1a166df0e12fe9fec4b79cc3dc9634ae45"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e43e64d0f1332fcc503babad4dc31aead7131ca"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b39fda51c32dd879451e0119881f31493bf83283"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ipv6: fix lockdep splat in in6_dump_addrs()", "id": "2347850", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347850"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-99", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nipv6: fix lockdep splat in in6_dump_addrs()\nAs reported by syzbot, we should not use rcu_dereference()\nwhen rcu_read_lock() is not held.\nWARNING: suspicious RCU usage\n5.19.0-rc2-syzkaller #0 Not tainted\nnet/ipv6/addrconf.c:5175 suspicious rcu_dereference_check() usage!\nother info that might help us debug this:\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\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]\ndump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\nin6_dump_addrs+0x12d1/0x1790 net/ipv6/addrconf.c:5175\ninet6_dump_addr+0x9c1/0xb50 net/ipv6/addrconf.c:5300\nnetlink_dump+0x541/0xc20 net/netlink/af_netlink.c:2275\n__netlink_dump_start+0x647/0x900 net/netlink/af_netlink.c:2380\nnetlink_dump_start include/linux/netlink.h:245 [inline]\nrtnetlink_rcv_msg+0x73e/0xc90 net/core/rtnetlink.c:6046\nnetlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501\nnetlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\nnetlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345\nnetlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921\nsock_sendmsg_nosec net/socket.c:714 [inline]\nsock_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\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x46/0xb0"], "name": "CVE-2022-49662", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49662\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49662\nhttps://lore.kernel.org/linux-cve-announce/2025022622-CVE-2022-49662-3875@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T23:06:08.526130+00:00", "updated": "2025-07-12T23:06:08.526199+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}