{
  "threat_severity" : "Moderate",
  "public_date" : "2026-04-03T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: net/mlx5e: Prevent concurrent access to IPSec ASO context",
    "id" : "2454840",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2454840"
  },
  "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" : "draft"
  },
  "cwe" : "CWE-821",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nnet/mlx5e: Prevent concurrent access to IPSec ASO context\nThe query or updating IPSec offload object is through Access ASO WQE.\nThe driver uses a single mlx5e_ipsec_aso struct for each PF, which\ncontains a shared DMA-mapped context for all ASO operations.\nA race condition exists because the ASO spinlock is released before\nthe hardware has finished processing WQE. If a second operation is\ninitiated immediately after, it overwrites the shared context in the\nDMA area.\nWhen the first operation's completion is processed later, it reads\nthis corrupted context, leading to unexpected behavior and incorrect\nresults.\nThis commit fixes the race by introducing a private context within\neach IPSec offload object. The shared ASO context is now copied to\nthis private context while the ASO spinlock is held. Subsequent\nprocessing uses this saved, per-object context, ensuring its integrity\nis maintained.", "A flaw was found in the Linux kernel's `net/mlx5e` driver. A race condition occurs when the ASO spinlock is released prematurely, allowing concurrent operations to overwrite a shared Direct Memory Access (DMA) context. This can lead to the processing of corrupted data, resulting in unexpected behavior and incorrect results within the IPSec offload functionality." ],
  "statement" : "This issue is limited to Mellanox ConnectX adapters using IPSec full offload with the shared ASO WQE path. Corrupted ASO context can break IPSec state or cause instability; exploitation for arbitrary code execution is not established. Systems without mlx5 or without IPSec offload are not affected.",
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "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",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "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-2026-23441\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23441\nhttps://lore.kernel.org/linux-cve-announce/2026040313-CVE-2026-23441-b47e@gregkh/T" ],
  "name" : "CVE-2026-23441",
  "csaw" : false
}