CVE-2025-38638 ipv6: add a retry logic in net6_rt_notify()

In the Linux kernel, the following vulnerability has been resolved: ipv6: add a retry logic in net6rtnotify inet6rtnotify can be called under RCU protection only. This means the route could be changed concurrently and rt6fillnode could return -EMSGSIZE. Re-size the skb when this happens and retry...

CVE-2025-38638

CVE-2025-38638: In the Linux kernel IPv6 stack, inet6_rt_notify() could be invoked under RCU protection, allowing concurrent route changes and rt6_fill_node() returning -EMSGSIZE. The fix adds retry logic: when this situation is detected, the skb is resized and the operation retried, and a previo...

CVE-2025-38638

In the Linux kernel, the following vulnerability has been resolved: ipv6: add a retry logic in net6rtnotify inet6rtnotify can be called under RCU protection only. This means the route could be changed concurrently and rt6fillnode could return -EMSGSIZE. Re-size the skb when this happens and retry...

CVE-2025-38627

In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix UAF of f2fsinodeinfo in f2fsfreedic The decompressioctx may be released asynchronously after I/O completion. If this file is deleted immediately after read, and the kworker of processing postreadwq has not bee...

CVE-2025-38621 md: make rdev_addable usable for rcu mode

In the Linux kernel, the following vulnerability has been resolved: md: make rdevaddable usable for rcu mode Our testcase trigger panic: BUG: kernel NULL pointer dereference, address: 00000000000000e0 ... Oops: Oops: 0000 1 SMP NOPTI CPU: 2 UID: 0 PID: 85 Comm: kworker/2:1 Not tainted 6.16.0+ 94...

CVE-2025-38621

The CVE-2025-38621 issue affects the Linux kernel md subsystem, where md_spares_need_change could call rdev_addable() while under RCU, potentially dereferencing an rdev.mddev that is NULL after release, causing a NULL pointer dereference and a panic. The published description notes the fix is to ...

CVE-2025-38621

In the Linux kernel, the following vulnerability has been resolved: md: make rdevaddable usable for rcu mode Our testcase trigger panic: BUG: kernel NULL pointer dereference, address: 00000000000000e0 ... Oops: Oops: 0000 1 SMP NOPTI CPU: 2 UID: 0 PID: 85 Comm: kworker/2:1 Not tainted 6.16.0+ 94...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from rdevaddable in RCU mode that could lead to null pointer dereference...

PT-2025-34399 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.16.0-rc7-syzkaller Description: The Linux kernel contained a flaw in the inet6 rt notify function within the IPv6 networking stack. Specifically, the function could be called while under RCU protection,...

SUSE CVE-2025-38587

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6infousesdev fib6infousesdev seems to rely on RCU without an explicit protection. Like the prior fix in rt6nlmsgsize, we need to make sure fib6delroute or fib6addrt2node have not removed the...

CVE-2025-38588

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent infinite loop in rt6nlmsgsize While testing prior patch, I was able to trigger an infinite loop in rt6nlmsgsize in the following place: listforeachentryrcusibling, &f6i-fib6siblings, fib6siblings...

CVE-2025-38587

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6infousesdev fib6infousesdev seems to rely on RCU without an explicit protection. Like the prior fix in rt6nlmsgsize, we need to make sure fib6delroute or fib6addrt2node have not removed the...

CVE-2025-38554

In the Linux kernel, the following vulnerability has been resolved: mm: fix a UAF when vma-mm is freed after vma-vmrefcnt got dropped By inducing delays in the right places, Jann Horn created a reproducer for a hard to hit UAF issue that became possible after VMAs were allowed to be recycled by...

CVE-2025-38588 ipv6: prevent infinite loop in rt6_nlmsg_size()

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent infinite loop in rt6nlmsgsize While testing prior patch, I was able to trigger an infinite loop in rt6nlmsgsize in the following place: listforeachentryrcusibling, &f6i-fib6siblings, fib6siblings...

CVE-2025-38588

CVE-2025-38588 affects the Linux kernel IPv6 path: an infinite loop in rt6_nlmsg_size() due to list_del_rcu() interactions with rt6_nh structures, potentially causing denial of service. The patch reworks the loop by restarting when f6i->fib6_nsiblings is zero, and kernel live patches/advisorie...

CVE-2025-38588

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent infinite loop in rt6nlmsgsize While testing prior patch, I was able to trigger an infinite loop in rt6nlmsgsize in the following place: listforeachentryrcusibling, &f6i-fib6siblings, fib6siblings...

CVE-2025-38587 ipv6: fix possible infinite loop in fib6_info_uses_dev()

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6infousesdev fib6infousesdev seems to rely on RCU without an explicit protection. Like the prior fix in rt6nlmsgsize, we need to make sure fib6delroute or fib6addrt2node have not removed the...

CVE-2025-38587

CVE-2025-38587 affects the Linux kernel IPv6 code: fib6_info_uses_dev() may loop indefinitely due to relying on RCU without explicit protection, risking an infinite loop if anchors are removed by fib6_del_route() or fib6_add_rt2node(). The vulnerability has been resolved in the kernel; advisories...

CVE-2025-38587

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible infinite loop in fib6infousesdev fib6infousesdev seems to rely on RCU without an explicit protection. Like the prior fix in rt6nlmsgsize, we need to make sure fib6delroute or fib6addrt2node have not removed the...

CVE-2025-38554

CVE-2025-38554 in the Linux kernel describes a use-after-free (UAF) involving VMAs: if vma->mm is freed after vma->vm_refcnt has dropped, a recycled VMA could be mishandled, leading to UAF. The race can occur when VMAs are recycled under RCU (with SLAB_TYPESAFE_BY_RCU) and lock_vma_under_rc...