| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: fix panic during interface removal\n\nReference counting is used to ensure that\nbatadv_hardif_neigh_node and batadv_hard_iface\nare not freed before/during\nbatadv_v_elp_throughput_metric_update work is\nfinished.\n\nBut there isn't a guarantee that the hard if will\nremain associated with a soft interface up until\nthe work is finished.\n\nThis fixes a crash triggered by reboot that looks\nlike this:\n\nCall trace:\n batadv_v_mesh_free+0xd0/0x4dc [batman_adv]\n batadv_v_elp_throughput_metric_update+0x1c/0xa4\n process_one_work+0x178/0x398\n worker_thread+0x2e8/0x4d0\n kthread+0xd8/0xdc\n ret_from_fork+0x10/0x20\n\n(the batadv_v_mesh_free call is misleading,\nand does not actually happen)\n\nI was able to make the issue happen more reliably\nby changing hardif_neigh->bat_v.metric_work work\nto be delayed work. This allowed me to track down\nand confirm the fix.\n\n[sven@narfation.org: prevent entering batadv_v_elp_get_throughput without\n soft_iface]" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/batman-adv/bat_v_elp.c" |
| ], |
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| { |
| "version": "c833484e5f3872a38fe232c663586069d5ad9645", |
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| "status": "affected", |
| "versionType": "git" |
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| "lessThan": "ce3f1545bf8fa28bd05ec113679e8e6cd23af577", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "c833484e5f3872a38fe232c663586069d5ad9645", |
| "lessThan": "f0a16c6c79768180333f3e41ce63f32730e3c3af", |
| "status": "affected", |
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| }, |
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| "lessThan": "072b2787321903287a126c148e8db87dd7ef96fe", |
| "status": "affected", |
| "versionType": "git" |
| }, |
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| "version": "c833484e5f3872a38fe232c663586069d5ad9645", |
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| "versionType": "git" |
| }, |
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| "version": "c833484e5f3872a38fe232c663586069d5ad9645", |
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| "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/batman-adv/bat_v_elp.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.6", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.6", |
| "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": "6.6.79", |
| "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": "4.6", |
| "versionEndExcluding": "5.4.291" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
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| }, |
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| }, |
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| }, |
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| }, |
| { |
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| "versionStartIncluding": "4.6", |
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| }, |
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| ] |
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| ] |
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| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/167422a07096a6006599067c8b55884064fa0b72" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ce3f1545bf8fa28bd05ec113679e8e6cd23af577" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f0a16c6c79768180333f3e41ce63f32730e3c3af" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7eb5dd201695645af071592a50026eb780081a72" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/072b2787321903287a126c148e8db87dd7ef96fe" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/2c3fb7df4cc6d043f70d4a8a10f8b915bbfb75e7" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/522b1596ea19e327853804da2de60aeb9c5d6f42" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ccb7276a6d26d6f8416e315b43b45e15ee7f29e2" |
| } |
| ], |
| "title": "batman-adv: fix panic during interface removal", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21781", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
