{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98419","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.348Z","datePublished":"2026-10-14T13:27:49.005Z","dateUpdated":"2026-10-19T09:19:12.975Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-19T09:19:12.975Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrop_monitor: fix out-of-bounds write in reset_per_cpu_data()\n\nIn reset_per_cpu_data(), al is computed as:\n\n    al = sizeof(struct net_dm_alert_msg);\n    al += dm_hit_limit * sizeof(struct net_dm_drop_point);\n    al += sizeof(struct nlattr);\n\n    skb = genlmsg_new(al, GFP_KERNEL);\n    ...\n    nla = nla_reserve(skb, NLA_UNSPEC, sizeof(struct net_dm_alert_msg));\n    ...\n    msg = nla_data(nla);\n    memset(msg, 0, al);\n\nBecause al includes sizeof(struct nlattr) (the 4-byte attribute header),\ngenlmsg_new() allocates al bytes of tailroom starting at nla.\nHowever, msg points to nla_data(nla), which is located\nsizeof(struct nlattr) bytes past nla. Calling memset(msg, 0, al)\ntherefore writes al bytes starting from msg, exceeding the allocated\nbuffer by sizeof(struct nlattr) (4 bytes) and corrupting\nskb_shared_info.\n\nFix this by letting al represent only the payload length, allocating\nthe skb with genlmsg_new(nla_total_size(al), GFP_KERNEL), and zeroing\nal bytes from msg."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/core/drop_monitor.c"],"versions":[{"version":"683703a26e4677db437a1480682851e27c7a154f","lessThan":"caf09c09e0f323015ab6777ed1bad5aa10688631","status":"affected","versionType":"git"},{"version":"683703a26e4677db437a1480682851e27c7a154f","lessThan":"56b12f0cd476e4d90a0e2663a80102b388ebf78c","status":"affected","versionType":"git"},{"version":"683703a26e4677db437a1480682851e27c7a154f","lessThan":"88d640efd655b10f9fa4e381caf777da1f17c2a6","status":"affected","versionType":"git"},{"version":"683703a26e4677db437a1480682851e27c7a154f","lessThan":"d54a044136b129822715e8798899af540ec7a9e9","status":"affected","versionType":"git"},{"version":"683703a26e4677db437a1480682851e27c7a154f","lessThan":"8a04047c6dbff2f49a561b1ff53b043f4807e855","status":"affected","versionType":"git"},{"version":"683703a26e4677db437a1480682851e27c7a154f","lessThan":"530ae0a1458078c7a81fbffd9ff17d42129364d9","status":"affected","versionType":"git"},{"version":"683703a26e4677db437a1480682851e27c7a154f","lessThan":"03b672eba4937ff18337049824a114012d57f202","status":"affected","versionType":"git"},{"version":"683703a26e4677db437a1480682851e27c7a154f","lessThan":"439f392084f8f7f59ab9d47a9579185accefe1d8","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/core/drop_monitor.c"],"versions":[{"version":"2.6.31","status":"affected"},{"version":"0","lessThan":"2.6.31","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.54","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.8","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","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":"2.6.31","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/caf09c09e0f323015ab6777ed1bad5aa10688631"},{"url":"https://git.kernel.org/stable/c/56b12f0cd476e4d90a0e2663a80102b388ebf78c"},{"url":"https://git.kernel.org/stable/c/88d640efd655b10f9fa4e381caf777da1f17c2a6"},{"url":"https://git.kernel.org/stable/c/d54a044136b129822715e8798899af540ec7a9e9"},{"url":"https://git.kernel.org/stable/c/8a04047c6dbff2f49a561b1ff53b043f4807e855"},{"url":"https://git.kernel.org/stable/c/530ae0a1458078c7a81fbffd9ff17d42129364d9"},{"url":"https://git.kernel.org/stable/c/03b672eba4937ff18337049824a114012d57f202"},{"url":"https://git.kernel.org/stable/c/439f392084f8f7f59ab9d47a9579185accefe1d8"}],"title":"drop_monitor: fix out-of-bounds write in reset_per_cpu_data()","x_generator":{"engine":"bippy-1.2.0"}}}}