Vulnerability-Lookup

GHSA-V32H-7447-3J7R

Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-05-27 15:33

Details

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

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()

ocelot_port_xmit_inj() calls ocelot_can_inject() and ocelot_port_inject_frame() without holding the injection group lock. Both functions contain lockdep_assert_held() for the injection lock, and the correct caller felix_port_deferred_xmit() properly acquires the lock using ocelot_lock_inj_grp() before calling these functions.

Add ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register injection path to fix the missing lock protection. The FDMA path is not affected as it uses its own locking mechanism.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-45849"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-27T14:16:56Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()\n\nocelot_port_xmit_inj() calls ocelot_can_inject() and\nocelot_port_inject_frame() without holding the injection group lock.\nBoth functions contain lockdep_assert_held() for the injection lock,\nand the correct caller felix_port_deferred_xmit() properly acquires\nthe lock using ocelot_lock_inj_grp() before calling these functions.\n\nAdd ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register\ninjection path to fix the missing lock protection. The FDMA path is not\naffected as it uses its own locking mechanism.",
  "id": "GHSA-v32h-7447-3j7r",
  "modified": "2026-05-27T15:33:12Z",
  "published": "2026-05-27T15:33:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45849"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/026f6513c5880c2c89e38ad66bbec2868f978605"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b217a40156f497e09dd20d3f7baec40c785f386"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51c32ae7fae14552d79f7139614b77c1bbd57a48"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/63da961381e0d979459dede713001f8452364477"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ac58d8832802ec89baa7539e13e6d58a88cce04"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc1b179f778f98270bdbbb48d183b4b6427ae198"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-45849 (GCVE-0-2026-45849)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:15 – Updated: 2026-05-27 12:15

Title

net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()

Summary

In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() ocelot_port_xmit_inj() calls ocelot_can_inject() and ocelot_port_inject_frame() without holding the injection group lock. Both functions contain lockdep_assert_held() for the injection lock, and the correct caller felix_port_deferred_xmit() properly acquires the lock using ocelot_lock_inj_grp() before calling these functions. Add ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register injection path to fix the missing lock protection. The FDMA path is not affected as it uses its own locking mechanism.

Severity

No CVSS data available.

Assigner

Linux

References

6 references

URL	Tags
https://git.kernel.org/stable/c/0b217a40156f497e0…
https://git.kernel.org/stable/c/cc1b179f778f98270…
https://git.kernel.org/stable/c/7ac58d8832802ec89…
https://git.kernel.org/stable/c/51c32ae7fae14552d…
https://git.kernel.org/stable/c/63da961381e0d9794…
https://git.kernel.org/stable/c/026f6513c5880c2c8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 960ec92774e152b677ccd0006abcab7b9dd814c2 , < 0b217a40156f497e09dd20d3f7baec40c785f386 (git) Affected: e83b49ecb569c9c5fa7cc30e55cf2c15f71f9f39 , < cc1b179f778f98270bdbbb48d183b4b6427ae198 (git) Affected: c5e12ac3beb0dd3a718296b2d8af5528e9ab728e , < 7ac58d8832802ec89baa7539e13e6d58a88cce04 (git) Affected: c5e12ac3beb0dd3a718296b2d8af5528e9ab728e , < 51c32ae7fae14552d79f7139614b77c1bbd57a48 (git) Affected: c5e12ac3beb0dd3a718296b2d8af5528e9ab728e , < 63da961381e0d979459dede713001f8452364477 (git) Affected: c5e12ac3beb0dd3a718296b2d8af5528e9ab728e , < 026f6513c5880c2c89e38ad66bbec2868f978605 (git) Affected: 609cd73bf38bbd48f1e695e01802114b01aa8811 (git) Affected: 6.1.107 , < 6.1.165 (semver) Affected: 6.6.48 , < 6.6.128 (semver) Affected: 6.10.7 , < 6.11 (semver)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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        {
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          "programFiles": [
            "drivers/net/ethernet/mscc/ocelot_net.c"
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          "vendor": "Linux",
          "versions": [
            {
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            },
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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              "versionType": "semver"
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            {
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "6.19.4",
              "versionType": "semver"
            },
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            }
          ]
        }
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      "cpeApplicability": [
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    "datePublished": "2026-05-27T12:15:15.494Z",
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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.

Action not permitted

GHSA-V32H-7447-3J7R

CVE-2026-45849 (GCVE-0-2026-45849)

Tags

Sightings

Nomenclature