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

Vulnerability from cvelistv5 – Published: 2024-11-19 17:19 – Updated: 2025-11-03 22:28
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
CWE
Assigner
References
Impacted products
Vendor Product Version
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)
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    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)
Create a notification for this product.
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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\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.229\", \"versionStartIncluding\": \"5.10.227\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.171\", \"versionStartIncluding\": \"5.15.168\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.116\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.60\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.7\", \"versionStartIncluding\": \"5.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"5.18\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:51:28.480Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-53042\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T22:28:44.629Z\", \"dateReserved\": \"2024-11-19T17:17:24.971Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-19T17:19:30.854Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

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.