Astra Linux - уязвимость в linux-5.10, linux-5.15, linux-6.1, linux

In the Linux kernel, the following vulnerabilities have been resolved: ip6tunnel: Ensure that the inner header is pulled in ip6tnlrcv. syzbot found that ip6tnlrcv could access unitized data 1. Call pskbinetmaypull to fix this, and initialize the ipv6h variable after this call, as it can change...

CVE-2024-26641 ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: make sure to pull inner header in ip6tnlrcv syzbot found ip6tnlrcv could access unitiliazed data 1. Call pskbinetmaypull to fix this, and initialize ipv6h variable after this call as it can change skb-head. 1 BUG: KMSA...

CVE-2024-26641

CVE-2024-26641 affects the Linux kernel’s IPv6/IP tunneling path. The issue arises in ip6_tunnel when receiving inner headers in __ip6_tnl_rcv(), which could access uninitialized data via a chained path (KMSAN warnings). The fix, as described in the description, is to call pskb_inet_may_pull() to...