CVE-2025-21802Medium· 5.5▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: net: hns3: fix oops when unload drivers paralleling When unload hclge driver, it tries to disable sriov first for each ae_dev node from hnae3_ae_dev_list. If user unlo…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
0.2% → 0.2%
Last analysed / modified upstream
In the Linux kernel, the following vulnerability has been resolved:
net: hns3: fix oops when unload drivers paralleling
When unload hclge driver, it tries to disable sriov first for each ae_dev node from hnae3_ae_dev_list. If user unloads hns3 driver at the time, because it removes all the ae_dev nodes, and it may cause oops.
But we can't simply use hnae3_common_lock for this. Because in the process flow of pci_disable_sriov(), it will trigger the remove flow of VF, which will also take hnae3_common_lock.
To fixes it, introduce a new mutex to protect the unload process.
linux_kernel >= 4.19.214, < 4.20linux_kernel >= 5.4.156, < 5.5linux_kernel >= 5.10.76, < 5.10.235linux_kernel >= 5.14.15, < 5.15linux_kernel >= 5.15.1, < 5.15.179linux_kernel >= 5.16, < 6.1.129linux_kernel >= 6.2, < 6.6.76linux_kernel >= 6.7, < 6.12.13linux_kernel >= 6.13, < 6.13.2linux_kernel = 5.15Upgrade past the affected range:
linux_kernel 6.13.2Connected by shared product, vendor, weakness, or advisory.
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