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Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn't\nbe found during the remove.\n\nThe following is the stack information:\nname 'ip_vs_conn_sync'\nWARNING: CPU: 3 PID: 9 at fs/proc/generic.c:712\nremove_proc_entry+0x389/0x460\nModules linked in:\nWorkqueue: netns cleanup_net\nRIP: 0010:remove_proc_entry+0x389/0x460\nCall Trace:\n<TASK>\n__ip_vs_cleanup_batch+0x7d/0x120\nops_exit_list+0x125/0x170\ncleanup_net+0x4ea/0xb00\nprocess_one_work+0x9bf/0x1710\nworker_thread+0x665/0x1080\nkthread+0x2e4/0x3a0\nret_from_fork+0x1f/0x30\n</TASK>"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/ipvs/ip_vs_conn.c"], "versions": [{"version": "61b1ab4583e275af216c8454b9256de680499b19", "lessThan": "f08ee2aa24c076f81d84e26e213d8c6f4efd9f50", "status": "affected", "versionType": "git"}, {"version": "61b1ab4583e275af216c8454b9256de680499b19", "lessThan": "7effc4ce3d1434ce6ff286866585a6e905fdbfc1", "status": "affected", "versionType": "git"}, {"version": "61b1ab4583e275af216c8454b9256de680499b19", "lessThan": "931f56d59c854263b32075bfac56fdb3b1598d1b", "status": "affected", "versionType": "git"}, {"version": "61b1ab4583e275af216c8454b9256de680499b19", "lessThan": "5ee2d6b726b0ce339e36569e5849692f4cf4595e", "status": "affected", "versionType": "git"}, {"version": "61b1ab4583e275af216c8454b9256de680499b19", "lessThan": "e724220b826e008764309d2a1f55a9434a4e1530", "status": "affected", "versionType": "git"}, {"version": "61b1ab4583e275af216c8454b9256de680499b19", "lessThan": "3d00c6a0da8ddcf75213e004765e4a42acc71d5d", "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/netfilter/ipvs/ip_vs_conn.c"], "versions": [{"version": "2.6.39", "status": "affected"}, {"version": "0", "lessThan": "2.6.39", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.265", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.224", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.154", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.78", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.8", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "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": "2.6.39", "versionEndExcluding": "4.19.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.4.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.10.154"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.15.78"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.0.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f08ee2aa24c076f81d84e26e213d8c6f4efd9f50"}, {"url": "https://git.kernel.org/stable/c/7effc4ce3d1434ce6ff286866585a6e905fdbfc1"}, {"url": "https://git.kernel.org/stable/c/931f56d59c854263b32075bfac56fdb3b1598d1b"}, {"url": "https://git.kernel.org/stable/c/5ee2d6b726b0ce339e36569e5849692f4cf4595e"}, {"url": "https://git.kernel.org/stable/c/e724220b826e008764309d2a1f55a9434a4e1530"}, {"url": "https://git.kernel.org/stable/c/3d00c6a0da8ddcf75213e004765e4a42acc71d5d"}], "title": "ipvs: fix WARNING in __ip_vs_cleanup_batch()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn't\nbe found during the remove.\n\nThe following is the stack information:\nname 'ip_vs_conn_sync'\nWARNING: CPU: 3 PID: 9 at fs/proc/generic.c:712\nremove_proc_entry+0x389/0x460\nModules linked in:\nWorkqueue: netns cleanup_net\nRIP: 0010:remove_proc_entry+0x389/0x460\nCall Trace:\n<TASK>\n__ip_vs_cleanup_batch+0x7d/0x120\nops_exit_list+0x125/0x170\ncleanup_net+0x4ea/0xb00\nprocess_one_work+0x9bf/0x1710\nworker_thread+0x665/0x1080\nkthread+0x2e4/0x3a0\nret_from_fork+0x1f/0x30\n</TASK>"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipvs: correcci\u00f3n de una ADVERTENCIA en __ip_vs_cleanup_batch(). Durante la inicializaci\u00f3n de ip_vs_conn_net_init(), si no se crea el archivo ip_vs_conn o ip_vs_conn_sync, la inicializaci\u00f3n se realiza correctamente por defecto. Por lo tanto, no se encuentra el archivo ip_vs_conn o ip_vs_conn_sync durante la eliminaci\u00f3n. La siguiente es la informaci\u00f3n de la pila: nombre 'ip_vs_conn_sync' ADVERTENCIA: CPU: 3 PID: 9 en fs/proc/generic.c:712 remove_proc_entry+0x389/0x460 M\u00f3dulos vinculados en: Cola de trabajo: netns cleanup_net RIP: 0010:remove_proc_entry+0x389/0x460 Seguimiento de llamadas: __ip_vs_cleanup_batch+0x7d/0x120 ops_exit_list+0x125/0x170 cleanup_net+0x4ea/0xb00 process_one_work+0x9bf/0x1710 worker_thread+0x665/0x1080 kthread+0x2e4/0x3a0 ret_from_fork+0x1f/0x30 "}], "id": "CVE-2022-49918", "lastModified": "2025-11-12T15:59:39.363", "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": "2025-05-01T15:16:17.060", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3d00c6a0da8ddcf75213e004765e4a42acc71d5d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5ee2d6b726b0ce339e36569e5849692f4cf4595e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7effc4ce3d1434ce6ff286866585a6e905fdbfc1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/931f56d59c854263b32075bfac56fdb3b1598d1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e724220b826e008764309d2a1f55a9434a4e1530"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f08ee2aa24c076f81d84e26e213d8c6f4efd9f50"}], "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: ipvs: fix WARNING in __ip_vs_cleanup_batch()", "id": "2363364", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363364"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nipvs: fix WARNING in __ip_vs_cleanup_batch()\nDuring the initialization of ip_vs_conn_net_init(), if file ip_vs_conn\nor ip_vs_conn_sync fails to be created, the initialization is successful\nby default. Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn't\nbe found during the remove.\nThe following is the stack information:\nname 'ip_vs_conn_sync'\nWARNING: CPU: 3 PID: 9 at fs/proc/generic.c:712\nremove_proc_entry+0x389/0x460\nModules linked in:\nWorkqueue: netns cleanup_net\nRIP: 0010:remove_proc_entry+0x389/0x460\nCall Trace:\n<TASK>\n__ip_vs_cleanup_batch+0x7d/0x120\nops_exit_list+0x125/0x170\ncleanup_net+0x4ea/0xb00\nprocess_one_work+0x9bf/0x1710\nworker_thread+0x665/0x1080\nkthread+0x2e4/0x3a0\nret_from_fork+0x1f/0x30\n</TASK>"], "name": "CVE-2022-49918", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49918\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49918\nhttps://lore.kernel.org/linux-cve-announce/2025050107-CVE-2022-49918-8541@gregkh/T"], "statement": "A kernel warning was triggered in remove_proc_entry() when IPVS proc entries were not properly created but still removed during netns cleanup. The fix ensures conditional cleanup only for successfully registered entries using proc_create_net() return value. The issue affects system stability but cannot be exploited beyond causing a soft kernel warning, and requires root-level access.", "threat_severity": "Moderate"}

{"created": "2025-06-24T09:44:13.222260+00:00", "updated": "2025-06-24T09:44:13.222332+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}