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

Vulnerability from cvelistv5 – Published: 2026-05-27 12:15 – Updated: 2026-05-27 12:15
VLAI
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
References
Impacted 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)
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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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          "value": "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."
        }
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.