Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: add RCU protection to mld_newpack() mld_newpack() can be called without RTNL or RCU being held. Note that we no longer can use sock_alloc_send_skb() because ipv6.igmp_sk uses GFP_KERNEL allocations which can sleep. Instead use alloc_skb() and charge the net->ipv6.igmp_sk socket under RCU protection.
References (9)
Core 9
Core References
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Scores
CVSS v3
5.5
EPSS
0.1273
EPSS Percentile
95.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details
Status
published
Products (21)
linux/Kernel
2.6.26 - 5.15.179linux
linux/Kernel
5.16.0 - 6.1.129linux
linux/Kernel
6.13.0 - 6.13.4linux
linux/Kernel
6.2.0 - 6.6.79linux
linux/Kernel
6.7.0 - 6.12.16linux
Linux/Linux
< 2.6.26
Linux/Linux
2.6.26
Linux/Linux
5.15.179 - 5.15.*
Linux/Linux
6.1.129 - 6.1.*
Linux/Linux
6.12.16 - 6.12.*
... and 11 more
Published
Feb 27, 2025
Tracked Since
Feb 18, 2026