CVE-2023-1195

A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux kernel. The issue occurs when it forgets to set the free pointer server->hostname to NULL, leading to an invalid pointer request.

Database specific

{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-416"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/1xxx/CVE-2023-1195.json"
}

References

Affected packages

Git / github.com/torvalds/linux

Affected ranges

Type

GIT

Repo

https://github.com/torvalds/linux

Events

Introduced

30a0b95b1335e12efef89dd78518ed3e4a71a763

Fixed

153695d36ead0ccc4d0256953c751cabf673e621

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "prior to kernel 6.1 rc3"
                },
                {
                    "last_affected":  "prior to kernel 6.1 rc3"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandaloneSingleVersion"
        },
        {
            "range":  [
                {
                    "fixed":  "153695d36ead0ccc4d0256953c751cabf673e621"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

prior to kernel 6.*

prior to kernel 6.1 rc3

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-1195.json"

vanir_signatures

[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "194690203964826457721607720254159843438",
            "length":  921
        },
        "id":  "CVE-2023-1195-351c6534",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/torvalds/linux/commit/153695d36ead0ccc4d0256953c751cabf673e621",
        "target":  {
            "file":  "fs/cifs/connect.c",
            "function":  "cifs_put_tcp_session"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "173956419972832208162509469679097877097",
                "63759140553960960487632636716906850614",
                "5647248873069855163268822903456449097",
                "265160484926038134974602322313145355742"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2023-1195-effd1c3b",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/torvalds/linux/commit/153695d36ead0ccc4d0256953c751cabf673e621",
        "target":  {
            "file":  "fs/cifs/connect.c"
        }
    }
]

vanir_signatures_modified

"2026-10-16T09:02:56Z"