{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2024-53042", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-11-19T17:17:24.971Z", "datePublished": "2024-11-19T17:19:30.854Z", "dateUpdated": "2025-11-03T22:28:44.629Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T09:51:28.480Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()\n\nThere are code paths from which the function is called without holding\nthe RCU read lock, resulting in a suspicious RCU usage warning [1].\n\nFix by using l3mdev_master_upper_ifindex_by_index() which will acquire\nthe RCU read lock before calling\nl3mdev_master_upper_ifindex_by_index_rcu().\n\n[1]\nWARNING: 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"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T22:28:44.629Z"}}]}}

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ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ab6c9463b137163ba53fc050bf2c72bed2c997b8", "lessThan": "e2742758c9c85c84e077ede5f916479f724e11c2", "versionType": "git"}, {"status": "affected", "version": "760852df570747e500a9632d34cbbf4faef30855", "lessThan": "5edcb3fdb12c3d46a6e79eeeec27d925b80fc168", "versionType": "git"}, {"status": "affected", "version": "db53cd3d88dc328dea2e968c9c8d3b4294a8a674", "lessThan": "72c0f482e39c87317ebf67661e28c8d86c93e870", "versionType": "git"}, {"status": "affected", "version": "db53cd3d88dc328dea2e968c9c8d3b4294a8a674", "lessThan": "699b48fc31727792edf2cab3829586ae6ba649e2", "versionType": "git"}, {"status": "affected", "version": "db53cd3d88dc328dea2e968c9c8d3b4294a8a674", "lessThan": "6dfaa458fe923211c766238a224e0a3c0522935c", "versionType": "git"}, 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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0F104260-2937-4687-86D6-2C9330E3F3C3", "versionEndExcluding": "5.10.229", "versionStartIncluding": "5.10.227", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E7D1CD1E-855E-4C64-9844-472A5F946600", "versionEndExcluding": "5.15.171", "versionStartIncluding": "5.15.168", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "59DB5C62-3CFA-4924-99D4-5594925B40B7", "versionEndExcluding": "6.1.116", "versionStartIncluding": "5.18", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "75088E5E-2400-4D20-915F-7A65C55D9CCD", "versionEndExcluding": "6.6.60", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E96F53A4-5E87-4A70-BD9A-BC327828D57F", "versionEndExcluding": "6.11.7", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*", "matchCriteriaId": "7F361E1D-580F-4A2D-A509-7615F73167A1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*", "matchCriteriaId": "925478D0-3E3D-4E6F-ACD5-09F28D5DF82C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*", "matchCriteriaId": "3C95E234-D335-4B6C-96BF-E2CEBD8654ED", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*", "matchCriteriaId": "E0F717D8-3014-4F84-8086-0124B2111379", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*", "matchCriteriaId": "24DBE6C7-2AAE-4818-AED2-E131F153D2FA", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()\n\nThere are code paths from which the function is called without holding\nthe RCU read lock, resulting in a suspicious RCU usage warning [1].\n\nFix by using l3mdev_master_upper_ifindex_by_index() which will acquire\nthe RCU read lock before calling\nl3mdev_master_upper_ifindex_by_index_rcu().\n\n[1]\nWARNING: suspicious RCU usage\n6.12.0-rc3-custom-gac8f72681cf2 #141 Not tainted\n-----------------------------\nnet/core/dev.c:876 RCU-list traversed in non-reader section!!\n\nother info that might help us debug this:\n\nrcu_scheduler_active = 2, debug_locks = 1\n1 lock held by ip/361:\n #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60\n\nstack backtrace:\nCPU: 3 UID: 0 PID: 361 Comm: ip Not tainted 6.12.0-rc3-custom-gac8f72681cf2 #141\nHardware name: Bochs Bochs, BIOS Bochs 01/01/2011\nCall Trace:\n <TASK>\n dump_stack_lvl+0xba/0x110\n lockdep_rcu_suspicious.cold+0x4f/0xd6\n dev_get_by_index_rcu+0x1d3/0x210\n l3mdev_master_upper_ifindex_by_index_rcu+0x2b/0xf0\n ip_tunnel_bind_dev+0x72f/0xa00\n ip_tunnel_newlink+0x368/0x7a0\n ipgre_newlink+0x14c/0x170\n __rtnl_newlink+0x1173/0x19c0\n rtnl_newlink+0x6c/0xa0\n rtnetlink_rcv_msg+0x3cc/0xf60\n netlink_rcv_skb+0x171/0x450\n netlink_unicast+0x539/0x7f0\n netlink_sendmsg+0x8c1/0xd80\n ____sys_sendmsg+0x8f9/0xc20\n ___sys_sendmsg+0x197/0x1e0\n __sys_sendmsg+0x122/0x1f0\n do_syscall_64+0xbb/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv4: ip_tunnel: Se corrige la advertencia de uso sospechoso de RCU en ip_tunnel_init_flow() Hay rutas de c\u00f3digo desde las que se llama a la funci\u00f3n sin mantener el bloqueo de lectura de RCU, lo que resulta en una advertencia de uso sospechoso de RCU [1]. Se soluciona utilizando l3mdev_master_upper_ifindex_by_index() que adquirir\u00e1 el bloqueo de lectura de RCU antes de llamar a l3mdev_master_upper_ifindex_by_index_rcu(). [1] ADVERTENCIA: uso sospechoso de RCU 6.12.0-rc3-custom-gac8f72681cf2 #141 No contaminado ----------------------------- net/core/dev.c:876 \u00a1Lista de RCU recorrida en una secci\u00f3n que no es de lectura! Otra informaci\u00f3n que podr\u00eda ayudarnos a depurar esto: rcu_scheduler_active = 2, debug_locks = 1 1 bloqueo retenido por ip/361: #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, en: rtnetlink_rcv_msg+0x377/0xf60 seguimiento de pila: CPU: 3 UID: 0 PID: 361 Comm: ip No contaminado 6.12.0-rc3-custom-gac8f72681cf2 #141 Nombre del hardware: Bochs Bochs, BIOS Bochs 01/01/2011 Seguimiento de llamadas: dump_stack_lvl+0xba/0x110 lockdep_rcu_suspicious.cold+0x4f/0xd6 dev_get_by_index_rcu+0x1d3/0x210 l3mdev_master_upper_ifindex_by_index_rcu+0x2b/0xf0 enlace de t\u00fanel ip_dev+0x72f/0xa00 nuevo enlace ip_tunnel+0x368/0x7a0 nuevo enlace ipgre+0x14c/0x170 nuevo enlace __rtnl+0x1173/0x19c0 nuevo enlace rtnl+0x6c/0xa0 rtnetlink_rcv_msg+0x3cc/0xf60 netlink_rcv_skb+0x171/0x450 unidifusi\u00f3n netlink+0x539/0x7f0 env\u00edo netlink_msg+0x8c1/0xd80 ____sys_sendmsg+0x8f9/0xc20 ___sys_sendmsg+0x197/0x1e0 __sys_sendmsg+0x122/0x1f0 hacer_syscall_64+0xbb/0x1d0 entrada_SYSCALL_64_despu\u00e9s_hwframe+0x77/0x7f"}], "id": "CVE-2024-53042", "lastModified": "2025-11-03T23:17:16.047", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-11-19T18:15:24.737", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5edcb3fdb12c3d46a6e79eeeec27d925b80fc168"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/699b48fc31727792edf2cab3829586ae6ba649e2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6dfaa458fe923211c766238a224e0a3c0522935c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/72c0f482e39c87317ebf67661e28c8d86c93e870"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ad4a3ca6a8e886f6491910a3ae5d53595e40597d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e2742758c9c85c84e077ede5f916479f724e11c2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2025:6966", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}, {"advisory": "RHSA-2025:6966", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-570.12.1.el9_6", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-05-13T00:00:00Z"}], "bugzilla": {"description": "kernel: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()", "id": "2327343", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2327343"}, "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": "verified"}, "cwe": "CWE-662", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()\nThere are code paths from which the function is called without holding\nthe RCU read lock, resulting in a suspicious RCU usage warning [1].\nFix by using l3mdev_master_upper_ifindex_by_index() which will acquire\nthe RCU read lock before calling\nl3mdev_master_upper_ifindex_by_index_rcu().\n[1]\nWARNING: suspicious RCU usage\n6.12.0-rc3-custom-gac8f72681cf2 #141 Not tainted\n-----------------------------\nnet/core/dev.c:876 RCU-list traversed in non-reader section!!\nother info that might help us debug this:\nrcu_scheduler_active = 2, debug_locks = 1\n1 lock held by ip/361:\n#0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60\nstack backtrace:\nCPU: 3 UID: 0 PID: 361 Comm: ip Not tainted 6.12.0-rc3-custom-gac8f72681cf2 #141\nHardware name: Bochs Bochs, BIOS Bochs 01/01/2011\nCall Trace:\n<TASK>\ndump_stack_lvl+0xba/0x110\nlockdep_rcu_suspicious.cold+0x4f/0xd6\ndev_get_by_index_rcu+0x1d3/0x210\nl3mdev_master_upper_ifindex_by_index_rcu+0x2b/0xf0\nip_tunnel_bind_dev+0x72f/0xa00\nip_tunnel_newlink+0x368/0x7a0\nipgre_newlink+0x14c/0x170\n__rtnl_newlink+0x1173/0x19c0\nrtnl_newlink+0x6c/0xa0\nrtnetlink_rcv_msg+0x3cc/0xf60\nnetlink_rcv_skb+0x171/0x450\nnetlink_unicast+0x539/0x7f0\nnetlink_sendmsg+0x8c1/0xd80\n____sys_sendmsg+0x8f9/0xc20\n___sys_sendmsg+0x197/0x1e0\n__sys_sendmsg+0x122/0x1f0\ndo_syscall_64+0xbb/0x1d0\nentry_SYSCALL_64_after_hwframe+0x77/0x7f"], "name": "CVE-2024-53042", "package_state": [{"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": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-11-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-53042\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-53042\nhttps://lore.kernel.org/linux-cve-announce/2024111924-CVE-2024-53042-f7e1@gregkh/T"], "threat_severity": "Moderate"}