CVE-2022-50840 (GCVE-0-2022-50840)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:10 – Updated: 2025-12-30 12:10
VLAI?
Title
scsi: snic: Fix possible UAF in snic_tgt_create()
Summary
In the Linux kernel, the following vulnerability has been resolved: scsi: snic: Fix possible UAF in snic_tgt_create() Smatch reports a warning as follows: drivers/scsi/snic/snic_disc.c:307 snic_tgt_create() warn: '&tgt->list' not removed from list If device_add() fails in snic_tgt_create(), tgt will be freed, but tgt->list will not be removed from snic->disc.tgt_list, then list traversal may cause UAF. Remove from snic->disc.tgt_list before free().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < f9d8b8ba0f1a16cde0b1fc9e80466df76b6db8ff (git)
Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < 3772319e40527e6a5f2ec1d729e01f271d818f5c (git)
Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < 3007f96ca20c848d0b1b052df6d2cb5ae5586e78 (git)
Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < 6866154c23fba40888ad6d554cccd4bf2edb755e (git)
Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < ad27f74e901fc48729733c88818e6b96c813057d (git)
Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < 1895e908b3ae66a5312fd1b2cdda2da82993dca7 (git)
Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < c7f0f8dab1ae5def57c1a8a9cafd6fabe1dc27cc (git)
Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < 4141cd9e8b3379aea52a85d2c35f6eaf26d14e86 (git)
Affected: c8806b6c9e824f47726f2a9b7fbbe7ebf19306fa , < e118df492320176af94deec000ae034cc92be754 (git)
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    Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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{
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              "version": "0",
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              "status": "unaffected",
              "version": "4.9.337",
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              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.303",
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              "status": "unaffected",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: snic: Fix possible UAF in snic_tgt_create()\n\nSmatch reports a warning as follows:\n\ndrivers/scsi/snic/snic_disc.c:307 snic_tgt_create() warn:\n  \u0027\u0026tgt-\u003elist\u0027 not removed from list\n\nIf device_add() fails in snic_tgt_create(), tgt will be freed, but\ntgt-\u003elist will not be removed from snic-\u003edisc.tgt_list, then list traversal\nmay cause UAF.\n\nRemove from snic-\u003edisc.tgt_list before free()."
        }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/f9d8b8ba0f1a16cde0b1fc9e80466df76b6db8ff"
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        },
        {
          "url": "https://git.kernel.org/stable/c/e118df492320176af94deec000ae034cc92be754"
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      "title": "scsi: snic: Fix possible UAF in snic_tgt_create()",
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    "datePublished": "2025-12-30T12:10:59.066Z",
    "dateReserved": "2025-12-30T12:06:07.133Z",
    "dateUpdated": "2025-12-30T12:10:59.066Z",
    "state": "PUBLISHED"
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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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