{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-50304", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T19:36:19.987Z", "datePublished": "2024-11-19T17:19:30.242Z", "dateUpdated": "2026-05-11T20:49:33.704Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:49:33.704Z" }, "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_find()\n\nThe per-netns IP tunnel hash table is protected by the RTNL mutex and\nip_tunnel_find() is only called from the control path where the mutex is\ntaken.\n\nAdd a lockdep expression to hlist_for_each_entry_rcu() in\nip_tunnel_find() in order to validate that the mutex is held and to\nsilence the suspicious RCU usage warning [1].\n\n[1]\nWARNING: suspicious RCU usage\n6.12.0-rc3-custom-gd95d9a31aceb #139 Not tainted\n-----------------------------\nnet/ipv4/ip_tunnel.c:221 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/362:\n #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60\n\nstack backtrace:\nCPU: 12 UID: 0 PID: 362 Comm: ip Not tainted 6.12.0-rc3-custom-gd95d9a31aceb #139\nHardware name: Bochs Bochs, BIOS Bochs 01/01/2011\nCall Trace:\n \n dump_stack_lvl+0xba/0x110\n lockdep_rcu_suspicious.cold+0x4f/0xd6\n ip_tunnel_find+0x435/0x4d0\n ip_tunnel_newlink+0x517/0x7a0\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" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/ipv4/ip_tunnel.c" ], "versions": [ { "version": "c54419321455631079c7d6e60bc732dd0c5914c5", "lessThan": "31bd7378c6fe100a8af0e996ea0b5dafd3579df6", "status": "affected", "versionType": "git" }, { "version": "c54419321455631079c7d6e60bc732dd0c5914c5", "lessThan": "6ac5dfa575136da8dd8a9e7c1437c41f3a593993", "status": "affected", "versionType": "git" }, { "version": "c54419321455631079c7d6e60bc732dd0c5914c5", "lessThan": "ce11424026cbf87d5861b09e5e33565ff7f2ec8d", "status": "affected", "versionType": "git" }, { "version": "c54419321455631079c7d6e60bc732dd0c5914c5", "lessThan": "e0500e4373cd3d5eace1f1712444ab830b82c114", "status": "affected", "versionType": "git" }, { "version": "c54419321455631079c7d6e60bc732dd0c5914c5", "lessThan": "f20fe2cfe06ca1b008b09da4f2b4e0c5547ccef6", "status": "affected", "versionType": "git" }, { "version": "c54419321455631079c7d6e60bc732dd0c5914c5", "lessThan": "90e0569dd3d32f4f4d2ca691d3fa5a8a14a13c12", "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/ipv4/ip_tunnel.c" ], "versions": [ { "version": "3.10", "status": "affected" }, { "version": "0", "lessThan": "3.10", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.234", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.178", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.128", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.75", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.7", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12", "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": "3.10", "versionEndExcluding": "5.10.234" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.15.178" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.1.128" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.6.75" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.11.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.12" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/31bd7378c6fe100a8af0e996ea0b5dafd3579df6" }, { "url": "https://git.kernel.org/stable/c/6ac5dfa575136da8dd8a9e7c1437c41f3a593993" }, { "url": "https://git.kernel.org/stable/c/ce11424026cbf87d5861b09e5e33565ff7f2ec8d" }, { "url": "https://git.kernel.org/stable/c/e0500e4373cd3d5eace1f1712444ab830b82c114" }, { "url": "https://git.kernel.org/stable/c/f20fe2cfe06ca1b008b09da4f2b4e0c5547ccef6" }, { "url": "https://git.kernel.org/stable/c/90e0569dd3d32f4f4d2ca691d3fa5a8a14a13c12" } ], "title": "ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:45:10.648Z" } } ] } }