8.1
High
CVE-2025-21765 In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU protection in ip6_default_advmss()…
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU protection in ip6_default_advmss() ip6_default_advmss() needs rcu protection to make sure the net structure it reads does not disappear.
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 | 2.6.26 | No fix stated |
Show the 4 other branches Hide the 4 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions not published | |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
Other CVEs of Linux
The 18286 CVEs of Linux →
CVE-2026-100082
xen-blkback: Avoid UAF when reading I/O statistics
Not rated
CVE-2026-100081
xen-netback: defer xenvif_mcast_addr_list_free()
Not rated
CVE-2026-100080
xen-netback: Fix UAF when reading statistics data
Not rated
CVE-2026-99270
tcp: Fix potential UAF in reqsk_timer_handler().
8.1
High