{
  "threat_severity" : "Moderate",
  "public_date" : "2025-07-25T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()",
    "id" : "2383478",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2383478"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-908",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()\nsyzbot found a potential access to uninit-value in nf_flow_pppoe_proto()\nBlamed commit forgot the Ethernet header.\nBUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\nnf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\nnf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]\nnf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623\nnf_hook_ingress include/linux/netfilter_netdev.h:34 [inline]\nnf_ingress net/core/dev.c:5742 [inline]\n__netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837\n__netif_receive_skb_one_core net/core/dev.c:5975 [inline]\n__netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090\nnetif_receive_skb_internal net/core/dev.c:6176 [inline]\nnetif_receive_skb+0x57/0x630 net/core/dev.c:6235\ntun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485\ntun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938\ntun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984\nnew_sync_write fs/read_write.c:593 [inline]\nvfs_write+0xb4b/0x1580 fs/read_write.c:686\nksys_write fs/read_write.c:738 [inline]\n__do_sys_write fs/read_write.c:749 [inline]" ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "release_date" : "2026-05-19T00:00:00Z",
    "advisory" : "RHSA-2026:18134",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10.2",
    "package" : "kernel-0:6.12.0-211.7.1.el10_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-19T00:00:00Z",
    "advisory" : "RHSA-2026:18587",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.5.1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-19T00:00:00Z",
    "advisory" : "RHSA-2026:18587",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.5.1.el9_8"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-38441\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38441\nhttps://lore.kernel.org/linux-cve-announce/2025072502-CVE-2025-38441-bb71@gregkh/T" ],
  "name" : "CVE-2025-38441",
  "csaw" : false
}