| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: mcast: extend RCU protection in igmp6_send()\n\nigmp6_send() can be called without RTNL or RCU being held.\n\nExtend RCU protection so that we can safely fetch the net pointer\nand avoid a potential UAF.\n\nNote that we no longer can use sock_alloc_send_skb() because\nipv6.igmp_sk uses GFP_KERNEL allocations which can sleep.\n\nInstead use alloc_skb() and charge the net->ipv6.igmp_sk\nsocket under RCU protection." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/ipv6/mcast.c" |
| ], |
| "versions": [ |
| { |
| "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551", |
| "lessThan": "81b25a07ebf53f9ef4ca8f3d96a8ddb94561dd5a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551", |
| "lessThan": "0bf8e2f3768629d437a32cb824149e6e98254381", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551", |
| "lessThan": "8e92d6a413feaf968a33f0b439ecf27404407458", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b8ad0cbc58f703972e9e37c4e2a8081dd7e6a551", |
| "lessThan": "087c1faa594fa07a66933d750c0b2610aa1a2946", |
| "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/ipv6/mcast.c" |
| ], |
| "versions": [ |
| { |
| "version": "2.6.26", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "2.6.26", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.79", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.16", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13.4", |
| "lessThanOrEqual": "6.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.14", |
| "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": "2.6.26", |
| "versionEndExcluding": "6.6.79" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.26", |
| "versionEndExcluding": "6.12.16" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.26", |
| "versionEndExcluding": "6.13.4" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "2.6.26", |
| "versionEndExcluding": "6.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/81b25a07ebf53f9ef4ca8f3d96a8ddb94561dd5a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/0bf8e2f3768629d437a32cb824149e6e98254381" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8e92d6a413feaf968a33f0b439ecf27404407458" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/087c1faa594fa07a66933d750c0b2610aa1a2946" |
| } |
| ], |
| "title": "ipv6: mcast: extend RCU protection in igmp6_send()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21759", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
