CVE-2023-53794 (GCVE-0-2023-53794)

Vulnerability from cvelistv5 – Published: 2025-12-09 00:00 – Updated: 2026-01-05 10:32
VLAI?
Title
cifs: fix session state check in reconnect to avoid use-after-free issue
Summary
In the Linux kernel, the following vulnerability has been resolved: cifs: fix session state check in reconnect to avoid use-after-free issue Don't collect exiting session in smb2_reconnect_server(), because it will be released soon. Note that the exiting session will stay in server->smb_ses_list until it complete the cifs_free_ipc() and logoff() and then delete itself from the list.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4fcd1813e6404dd4420c7d12fb483f9320f0bf93 , < 7e4f5c3f01fb0e51ca438e43262d858daf9a0a76 (git)
Affected: 4fcd1813e6404dd4420c7d12fb483f9320f0bf93 , < 759ffc164d95a32c09528766d74d9b4fb054e8f4 (git)
Affected: 4fcd1813e6404dd4420c7d12fb483f9320f0bf93 , < 99f280700b4cc02d5f141b8d15f8e9fad0418f65 (git)
Affected: 655e0c067f0e02ece03fd0591dabe3db2ae27552 (git)
Affected: 875cc09c0767a4ac06b57af383709657f98b3ea1 (git)
Affected: 599fe1409085059ba12a2c3897c853be9fa9e7cf (git)
Affected: 2e4378ee60049b752c9dce16f62ce6fbd11b379a (git)
Affected: 59b520454b323ec43b2ae757217332cea33091e0 (git)
Affected: e20c888e2b3576e5f498c167729d274ef60b86f8 (git)
Affected: 4ce7aa4e44d88ce64ea8ae2337b8910f3670b0ba (git)
Affected: 419fad68e4c4135ff9859e9214dd6cf954413ca1 (git)
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    Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 6.1.47 , ≤ 6.1.* (semver)
Unaffected: 6.4.12 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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{
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: fix session state check in reconnect to avoid use-after-free issue\n\nDon\u0027t collect exiting session in smb2_reconnect_server(), because it\nwill be released soon.\n\nNote that the exiting session will stay in server-\u003esmb_ses_list until\nit complete the cifs_free_ipc() and logoff() and then delete itself\nfrom the list."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-01-05T10:32:55.035Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "cveId": "CVE-2023-53794",
    "datePublished": "2025-12-09T00:00:51.061Z",
    "dateReserved": "2025-12-08T23:58:35.274Z",
    "dateUpdated": "2026-01-05T10:32:55.035Z",
    "state": "PUBLISHED"
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  }
}


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