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In the Linux kernel, the following vulnerability has been resolved:
smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set().
smc_clc_prfx_set() is called during connect() and not under RCU nor RTNL.
Using sk_dst_get(sk)->dev could trigger UAF.
Let's use __sk_dst_get() and dev_dst_rcu() under rcu_read_lock() after kernel_getsockname().
Note that the returned value of smc_clc_prfx_set() is not used in the caller.
While at it, we change the 1st arg of smc_clc_prfx_set[46]_rcu() not to touch dst there.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux-6.12Upgrade linux | Sep 18, 2026 | Nov 12, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Nov 12, 2025 |
| Ubuntu | — | Upgrade linux-image-6.17.0-1011-oemUpgrade linux-image-azure-6.17Upgrade linux-image-awsUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-gcpUpgrade linux-image-oracle-64kUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-raspiUpgrade linux-image-generic-6.17Upgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-6.17.0-1007-awsUpgrade linux-image-raspi-6.17Upgrade linux-image-realtime-6.17Upgrade linux-image-generic-64k-6.17Upgrade linux-image-6.8.0-1035-nvidia-tegraUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-oem-6.17Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-gcp-6.17Upgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-azureUpgrade linux-image-oracle-6.17Upgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-genericUpgrade linux-image-nvidia-tegraUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-virtualUpgrade linux-image-virtual-6.17Upgrade linux-image-aws-6.17Upgrade linux-image-realtimeUpgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-6.8.0-1035-nvidia-tegra-rtUpgrade linux-image-generic-64kUpgrade linux-image-aws-64k-6.17Upgrade linux-image-aws-64kUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-gcp-64kUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-oracle | Feb 13, 2026 | Feb 12, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Sep 21, 2026 | Nov 12, 2025 |
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