Vulnerability-Lookup

GHSA-WM5F-4G6V-FM7R

Vulnerability from github – Published: 2024-10-21 21:30 – Updated: 2024-10-24 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails

Smatch report warning as follows:

drivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn: '&data->list' not removed from list

If ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will be freed, but data->list will not be removed from driver_data.bmc_data, then list traversal may cause UAF.

Fix by removeing it from driver_data.bmc_data before free().

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49029"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T20:15:13Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails\n\nSmatch report warning as follows:\n\ndrivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn:\n  \u0027\u0026data-\u003elist\u0027 not removed from list\n\nIf ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will\nbe freed, but data-\u003elist will not be removed from driver_data.bmc_data,\nthen list traversal may cause UAF.\n\nFix by removeing it from driver_data.bmc_data before free().",
  "id": "GHSA-wm5f-4g6v-fm7r",
  "modified": "2024-10-24T18:30:42Z",
  "published": "2024-10-21T21:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49029"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/24b9633f7db7f4809be7053df1d2e117e7c2de10"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/45f6e81863747c0d7bc6a95ec51129900e71467a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/798198273bf86673b970b51acdb35e57f42b3fcb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b2b67fe1339389e0bf3c37c7a677a004ac0e4e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/90907cd4d11351ff76c9a447bcb5db0e264c47cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2a87785aab0dac190ac89be6a9ba955e2c634f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e65cfd1f9cd27d9c27ee5cb88128a9f79f25d863"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f2a13196ad41c6c2ab058279dffe6c97292e753a"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49029 (GCVE-0-2022-49029)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:06 – Updated: 2026-08-05 08:53

Title

hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails

Summary

In the Linux kernel, the following vulnerability has been resolved: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails Smatch report warning as follows: drivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn: '&data->list' not removed from list If ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will be freed, but data->list will not be removed from driver_data.bmc_data, then list traversal may cause UAF. Fix by removeing it from driver_data.bmc_data before free().

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-22 13:11 UTC

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/f2a13196ad41c6c2a…
https://git.kernel.org/stable/c/798198273bf86673b…
https://git.kernel.org/stable/c/24b9633f7db7f4809…
https://git.kernel.org/stable/c/7b2b67fe1339389e0…
https://git.kernel.org/stable/c/90907cd4d11351ff7…
https://git.kernel.org/stable/c/45f6e81863747c0d7…
https://git.kernel.org/stable/c/e65cfd1f9cd27d9c2…
https://git.kernel.org/stable/c/e2a87785aab0dac19…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < f2a13196ad41c6c2ab058279dffe6c97292e753a (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 798198273bf86673b970b51acdb35e57f42b3fcb (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 24b9633f7db7f4809be7053df1d2e117e7c2de10 (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 7b2b67fe1339389e0bf3c37c7a677a004ac0e4e3 (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 90907cd4d11351ff76c9a447bcb5db0e264c47cd (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < 45f6e81863747c0d7bc6a95ec51129900e71467a (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < e65cfd1f9cd27d9c27ee5cb88128a9f79f25d863 (git) Affected: 57c7c3a0fdea95eddcaeba31e7ca7dfc917682ab , < e2a87785aab0dac190ac89be6a9ba955e2c634f2 (git)
Linux	Linux	Affected: 2.6.24 Unaffected: 0 , < 2.6.24 (semver) Unaffected: 4.9.335 , ≤ 4.9.* (semver) Unaffected: 4.14.301 , ≤ 4.14.* (semver) Unaffected: 4.19.268 , ≤ 4.19.* (semver) Unaffected: 5.4.226 , ≤ 5.4.* (semver) Unaffected: 5.10.158 , ≤ 5.10.* (semver) Unaffected: 5.15.82 , ≤ 5.15.* (semver) Unaffected: 6.0.12 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
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                "id": "CVE-2022-49029",
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                "timestamp": "2024-10-22T13:11:29.003244Z",
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              "value": "AV:L - The ibmpex driver registers via an IPMI SMI watcher callback and talks to the local BMC over the IPMI system interface; an attacker needs local access on an affected IBM System X host, not network or adjacent-segment reachability.\nAC:L - Once ibmpex_find_sensors() fails after the list_add, the stale list entry is deterministic and the subsequent UAF on list traversal requires no race the attacker cannot influence; UAF bugs are scored AC:L unless an uncontrolled race is required.\nPR:L - On multi-user/datacenter IBM System X deployments the vulnerable driver can be present for a local unprivileged user, and when choosing between PR:L and PR:H the higher-severity option is required; this matches the worst reasonable local attacker model.\nUI:N - Exploitation does not require a victim to perform any action such as mounting a filesystem or opening a malicious file; the UAF follows from driver registration failure and later list traversal.\nS:U - This is a standard in-kernel use-after-free within the host kernel\u0027s authority and does not cross a VM, IOMMU, or other security boundary.\nC:H - Use-after-free of the ibmpex_bmc_data object on a traversable list enables heap reuse and arbitrary read primitives under standard kernel UAF exploitation.\nI:H - The same UAF enables heap spraying and control of the freed object\u0027s contents, yielding write/control-flow hijack primitives consistent with kernel memory-corruption impact.\nA:H - Traversing the dangling list entry can crash or oops the kernel (and UAF bugs are scored A:H even when not fully exploited for code execution)."
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.