7.8
High
CVE-2025-21791 In the Linux kernel, the following vulnerability has been resolved: vrf: use RCU protection in l3mdev_l3_out()…
Description
In the Linux kernel, the following vulnerability has been resolved: vrf: use RCU protection in l3mdev_l3_out() l3mdev_l3_out() can be called without RCU being held: raw_sendmsg() ip_push_pending_frames() ip_send_skb() ip_local_out() __ip_local_out() l3mdev_ip_out() Add rcu_read_lock() / rcu_read_unlock() pair to avoid a potential UAF.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.14 | earliest → < 6.14 | 6.14 |
| Linux 6.13 | earliest → < 6.13.4 | 6.13.4 |
| Linux 6.12 | earliest → < 6.12.16 | 6.12.16 |
| Linux 6.6 | earliest → < 6.6.79 | 6.6.79 |
| Linux 6.1 | earliest → < 6.1.129 | 6.1.129 |
| Linux 5.15 | earliest → < 5.15.179 | 5.15.179 |
| Linux 5.10 | earliest → < 5.10.235 | 5.10.235 |
| Linux 5.4 | earliest → < 5.4.291 | 5.4.291 |
| Linux | 4.9 | No fix stated |
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| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions not published |
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8.1
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