CVE-2026-97434
Description
In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: fix handling of NAPI on the remove path All the NAPI instances for a DPSW device are attached to the first switch port's net_device but shared by all ports. The NAPI instances get disabled only once the last port goes down. This causes an issue on the .remove() path where each port is unregistered and freed one at a time, causing the NAPI instances to be deleted even though they are not disabled. In order to avoid this, split up the unregister_netdev() calls from the free_netdev() so that we make sure all ports go down before we attempt a deletion of NAPI instances. Also, make the netif_napi_del() explicit as it is on the .probe() path.
How to fix
- Linux Linuxd39603e21087e9ef9cd125e5895cdc70b2eb154d, bd16f46d0796109d241d6311a7577f9956467c96, c996faba71fc465ad12c6d177bd1a9ad974f9ee8, 569df157eb874cb3b50554d73b89f31599397b42, 6518f87771c8833e587bd9881346fa759651c2ae, e23d7c8c1d4ba435c457d7ffb2669175ec819b07 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 0b1b71370458860579831e77485883fcf2e8fbbe ≤ v < d39603e21087e9ef9cd125e5895cdc70b2eb154d, 0b1b71370458860579831e77485883fcf2e8fbbe ≤ v < bd16f46d0796109d241d6311a7577f9956467c96, 0b1b71370458860579831e77485883fcf2e8fbbe ≤ v < c996faba71fc465ad12c6d177bd1a9ad974f9ee8, 0b1b71370458860579831e77485883fcf2e8fbbe ≤ v < 569df157eb874cb3b50554d73b89f31599397b42, 0b1b71370458860579831e77485883fcf2e8fbbe ≤ v < 6518f87771c8833e587bd9881346fa759651c2ae, 0b1b71370458860579831e77485883fcf2e8fbbe ≤ v < e23d7c8c1d4ba435c457d7ffb2669175ec819b07, 5.13 | d39603e21087e9ef9cd125e5895cdc70b2eb154d, bd16f46d0796109d241d6311a7577f9956467c96, c996faba71fc465ad12c6d177bd1a9ad974f9ee8, 569df157eb874cb3b50554d73b89f31599397b42, 6518f87771c8833e587bd9881346fa759651c2ae, e23d7c8c1d4ba435c457d7ffb2669175ec819b07 |
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