{
  "public_date" : "2026-04-24T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: smb: server: let send_done handle a completion without IB_SEND_SIGNALED",
    "id" : "2461539",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2461539"
  },
  "cwe" : "CWE-166",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nsmb: server: let send_done handle a completion without IB_SEND_SIGNALED\nWith smbdirect_send_batch processing we likely have requests without\nIB_SEND_SIGNALED, which will be destroyed in the final request\nthat has IB_SEND_SIGNALED set.\nIf the connection is broken all requests are signaled\neven without explicit IB_SEND_SIGNALED.", "A flaw was found in the Linux kernel's Server Message Block (SMB) direct server implementation. This issue occurs during `smbdirect_send_batch` processing where requests without the `IB_SEND_SIGNALED` flag may be incorrectly handled when a connection is broken. This could lead to unexpected behavior related to request completion and resource management within the SMB server." ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "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" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-31536\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31536\nhttps://lore.kernel.org/linux-cve-announce/2026042433-CVE-2026-31536-d7cc@gregkh/T" ],
  "name" : "CVE-2026-31536",
  "csaw" : false
}