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CVE-2024-53042 (GCVE-0-2024-53042)

Vulnerability from cvelistv5 – Published: 2024-11-19 17:19 – Updated: 2026-05-23 15:55
VLAI
Title
ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow() There are code paths from which the function is called without holding the RCU read lock, resulting in a suspicious RCU usage warning [1]. Fix by using l3mdev_master_upper_ifindex_by_index() which will acquire the RCU read lock before calling l3mdev_master_upper_ifindex_by_index_rcu(). [1] WARNING: suspicious RCU usage 6.12.0-rc3-custom-gac8f72681cf2 #141 Not tainted ----------------------------- net/core/dev.c:876 RCU-list traversed in non-reader section!! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by ip/361: #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60 stack backtrace: CPU: 3 UID: 0 PID: 361 Comm: ip Not tainted 6.12.0-rc3-custom-gac8f72681cf2 #141 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 Call Trace: <TASK> 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 ip_tunnel_bind_dev+0x72f/0xa00 ip_tunnel_newlink+0x368/0x7a0 ipgre_newlink+0x14c/0x170 __rtnl_newlink+0x1173/0x19c0 rtnl_newlink+0x6c/0xa0 rtnetlink_rcv_msg+0x3cc/0xf60 netlink_rcv_skb+0x171/0x450 netlink_unicast+0x539/0x7f0 netlink_sendmsg+0x8c1/0xd80 ____sys_sendmsg+0x8f9/0xc20 ___sys_sendmsg+0x197/0x1e0 __sys_sendmsg+0x122/0x1f0 do_syscall_64+0xbb/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 20:13 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ab6c9463b137163ba53fc050bf2c72bed2c997b8 , < e2742758c9c85c84e077ede5f916479f724e11c2 (git)
Affected: 760852df570747e500a9632d34cbbf4faef30855 , < 5edcb3fdb12c3d46a6e79eeeec27d925b80fc168 (git)
Affected: db53cd3d88dc328dea2e968c9c8d3b4294a8a674 , < 72c0f482e39c87317ebf67661e28c8d86c93e870 (git)
Affected: db53cd3d88dc328dea2e968c9c8d3b4294a8a674 , < 699b48fc31727792edf2cab3829586ae6ba649e2 (git)
Affected: db53cd3d88dc328dea2e968c9c8d3b4294a8a674 , < 6dfaa458fe923211c766238a224e0a3c0522935c (git)
Affected: db53cd3d88dc328dea2e968c9c8d3b4294a8a674 , < ad4a3ca6a8e886f6491910a3ae5d53595e40597d (git)
Affected: 5.10.227 , < 5.10.229 (semver)
Affected: 5.15.168 , < 5.15.171 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 5.10.229 , ≤ 5.10.* (semver)
Unaffected: 5.15.171 , ≤ 5.15.* (semver)
Unaffected: 6.1.116 , ≤ 6.1.* (semver)
Unaffected: 6.6.60 , ≤ 6.6.* (semver)
Unaffected: 6.11.7 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
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          "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"
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        "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 \u003cTASK\u003e\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": "2026-06-17T08:08:07.300",
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            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
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          {
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
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      "product_status:fixed": "305",
      "product_status:known_affected": "112",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-53042.json",
      "version": "3"
    },
    "suse_vex": {
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      "current_release_date": "2026-09-11T16:42:41Z",
      "cve": "CVE-2024-53042",
      "id": "CVE-2024-53042",
      "initial_release_date": "2024-11-20T03:49:22Z",
      "product_status:known_affected": "430",
      "product_status:known_not_affected": "457",
      "product_status:recommended": "341",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-53042",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-53042.json",
      "version": "63"
    },
    "vulnrichment": {
      "containers": {
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          {
            "providerMetadata": {
              "dateUpdated": "2025-11-03T22:28:44.629Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
              },
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "affected": [
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-12T12:01:02.694Z",
              "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
              "shortName": "siemens-SADP"
            },
            "references": [
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                "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
              }
            ],
            "x_adpType": "supplier"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "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"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-53042",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
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                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-01T20:13:44.449792Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
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                "descriptions": [
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                    "description": "CWE-noinfo Not enough information",
                    "lang": "en",
                    "type": "CWE"
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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
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        ],
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                  "version": "0",
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                  "status": "unaffected",
                  "version": "5.10.229",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.171",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.116",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.60",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.11.*",
                  "status": "unaffected",
                  "version": "6.11.7",
                  "versionType": "semver"
                },
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                  "lessThanOrEqual": "*",
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                  "version": "6.12",
                  "versionType": "original_commit_for_fix"
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              ]
            }
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          "cpeApplicability": [
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                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "versionStartIncluding": "5.10.227",
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                    },
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              "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 \u003cTASK\u003e\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"
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            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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            {
              "url": "https://git.kernel.org/stable/c/ad4a3ca6a8e886f6491910a3ae5d53595e40597d"
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          "title": "ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow()",
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        "dateReserved": "2024-11-19T17:17:24.971Z",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.