CVE-2026-53323Patch(linux / linux_kernel)

LOWCVSS 5.5 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch linux linux_kernel systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops DSA replaces the conduit (master) device's ethtool_ops with its own wrappers that aggregate stats from both the conduit and DSA switch ports. Taking the lock again inside the DSA wrappers causes a deadlock. Stumbled upon this when booting qemu with fbnic and CONFIG_NET_DSA_LOOP=y (which looks like some kind of testing device that auto-populates the ports of eth0). `ethtool -i` is enough to deadlock. This means we have basically zero coverage for DSA stuff with real ops locked devs. Remove the redundant netdev_lock_ops()/netdev_unlock_ops() calls from the DSA conduit ethtool wrappers.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-667

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • 2 total mentions across 1 day

Affected systems

Vendors
Products
linux_kernel

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-06-27: 2Patch / Workaround · 2026-06-27: 2Technical Details · 2026-06-27: 206-27
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Patch

    CVE-2026-53323 In the Linux kernel, the following vulnerability has been resolved: net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops DSA replaces the conduit (… https://www.cve.org/CVERecord?id=CVE-2026-53323

    Post summary

    CVE-2026-53323 has been fixed in the Linux kernel by removing redundant netdev_lock_ops() from conduit ethtool ops.

    00011896
    57.7K followersView on X
  • Infoflowcloud@infoflowcloud
    Patch

    🚨*CVE* CVE-2026-53323 In the Linux kernel, the following vulnerability has been resolved: net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops DSA replaces the conduit (… https://www.cve.org/CVERecord?id=CVE-2026-53323 ----- Traducción: CVE-2026-53323 En … http://infoflow.cloud`

    Post summary

    The CVE-2026-53323 issue in the Linux kernel has been resolved by removing redundant netdev_lock_ops() calls; no PoC, exploit, or active exploitation is reported, and no false‑positive statement is made.

    0001032
    89 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSlinuxlinux_kernel---

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