CVE-2026-53323
- Source
- https://cve.org/CVERecord?id=CVE-2026-53323
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53323.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-53323
- Downstream
- Published
- 2026-06-26T19:41:13.926Z
- Modified
- 2026-07-08T08:07:31.552064379Z
- Summary
- net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: dsa: remove redundant netdevlockops() 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 CONFIGNETDSA_LOOP=y (which looks like some kind of testing device that auto-populates the ports of eth0).
ethtool -iis enough to deadlock. This means we have basically zero coverage for DSA stuff with real ops locked devs.Remove the redundant netdevlockops()/netdevunlockops() calls from the DSA conduit ethtool wrappers.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53323.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/0f99e0c3e19badaf3fdced0d3feba623e59eed41
- https://git.kernel.org/stable/c/74d64ae4254e99ef8c8215b057a76edac82c5f99
- https://git.kernel.org/stable/c/abe91fd045874d21834482adcd7a9693e7377056
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53323.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-53323
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git