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| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetem: Update sch->q.qlen before qdisc_tree_reduce_backlog()\n\nqdisc_tree_reduce_backlog() notifies parent qdisc only if child\nqdisc becomes empty, therefore we need to reduce the backlog of the\nchild qdisc before calling it. Otherwise it would miss the opportunity\nto call cops->qlen_notify(), in the case of DRR, it resulted in UAF\nsince DRR uses ->qlen_notify() to maintain its active list." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/sched/sch_netem.c" |
| ], |
| "versions": [ |
| { |
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| "status": "affected", |
| "versionType": "git" |
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| { |
| "version": "216509dda290f6db92c816dd54b83c1df9da9e76", |
| "lessThan": "7f31d74fcc556a9166b1bb20515542de7bb939d1", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "c2047b0e216c8edce227d7c42f99ac2877dad0e4", |
| "lessThan": "98a2c685293aae122f688cde11d9334dddc5d207", |
| "status": "affected", |
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| "version": "10df49cfca73dfbbdb6c4150d859f7e8926ae427", |
| "lessThan": "7b79ca9a1de6a428d486ff52fb3d602321c08f55", |
| "status": "affected", |
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| }, |
| { |
| "version": "3824c5fad18eeb7abe0c4fc966f29959552dca3e", |
| "lessThan": "1f8e3f4a4b8b90ad274dfbc66fc7d55cb582f4d5", |
| "status": "affected", |
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| "version": "356078a5c55ec8d2061fcc009fb8599f5b0527f9", |
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| "status": "affected", |
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| }, |
| { |
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| "lessThan": "839ecc583fa00fab785fde1c85a326743657fd32", |
| "status": "affected", |
| "versionType": "git" |
| }, |
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| "lessThan": "638ba5089324796c2ee49af10427459c2de35f71", |
| "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/sched/sch_netem.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.13", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.13", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.291", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.235", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.179", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.129", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.78", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.14", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13.3", |
| "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": "5.4.288", |
| "versionEndExcluding": "5.4.291" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10.232", |
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| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.15.175", |
| "versionEndExcluding": "5.15.179" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1.121", |
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| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.6.67", |
| "versionEndExcluding": "6.6.78" |
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| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.12.6", |
| "versionEndExcluding": "6.12.14" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.13", |
| "versionEndExcluding": "6.13.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.13", |
| "versionEndExcluding": "6.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/e395fec75ac2dbffc99b4bce57b7f1f3c5449f2c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7f31d74fcc556a9166b1bb20515542de7bb939d1" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/98a2c685293aae122f688cde11d9334dddc5d207" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7b79ca9a1de6a428d486ff52fb3d602321c08f55" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/1f8e3f4a4b8b90ad274dfbc66fc7d55cb582f4d5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6312555249082d6d8cc5321ff725df05482d8b83" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/839ecc583fa00fab785fde1c85a326743657fd32" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/638ba5089324796c2ee49af10427459c2de35f71" |
| } |
| ], |
| "title": "netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21703", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
