CVE-2025-38588
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: prevent infinite loop in rt6_nlmsg_size()
While testing prior patch, I was able to trigger an infinite loop in rt6_nlmsg_size() in the following place:
list_for_each_entry_rcu(sibling, &f6i->fib6_siblings, fib6_siblings) { rt6_nh_nlmsg_size(sibling->fib6_nh, &nexthop_len); }
This is because fib6_del_route() and fib6_add_rt2node() uses list_del_rcu(), which can confuse rcu readers, because they might no longer see the head of the list.
Restart the loop if f6i->fib6_nsiblings is zero.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2 < 6d345136c9b875f065d226908a29c25cdf9343f8 | affected |
| Linux | Linux | 52da02521ede55fb86546c3fffd9377b3261b91f < e1b7932af47f92432be8303d2439d1bf77b0be23 | affected |
| Linux | Linux | 34a949e7a0869dfa31a40416d2a56973fae1807b < cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38 | affected |
| Linux | Linux | d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 3c13db3e47e170bab19e574404e7b6be45ea873d | affected |
| Linux | Linux | d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 46aeb66e9e54ed0d56c18615e1c3dbd502b327ab | affected |
| Linux | Linux | d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 54e6fe9dd3b0e7c481c2228782c9494d653546da | affected |
| Linux | Linux | 11edcd026012ac18acee0f1514db3ed1b160fc6f | affected |
| Linux | Linux | 6.1.128 < 6.1.148 | affected |
| Linux | Linux | 6.6.75 < 6.6.102 | affected |
| Linux | Linux | 6.12.2 < 6.12.42 | affected |
| Linux | Linux | 6.11.11 < 6.12 | affected |
| Linux | Linux | 6.13 | affected |
| Linux | Linux | 0 < 6.13 | unaffected |
| Linux | Linux | 6.1.148 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.102 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.42 <= 6.12.* | unaffected |
| Linux | Linux | 6.15.10 <= 6.15.* | unaffected |
| Linux | Linux | 6.16.1 <= 6.16.* | unaffected |
| Linux | Linux | 6.17 <= * | unaffected |
Weaknesses
ADP Enrichment
CVE Program Container
Additional References
References
- https://git.kernel.org/stable/c/6d345136c9b875f065d226908a29c25cdf9343f8
- https://git.kernel.org/stable/c/e1b7932af47f92432be8303d2439d1bf77b0be23
- https://git.kernel.org/stable/c/cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38
- https://git.kernel.org/stable/c/3c13db3e47e170bab19e574404e7b6be45ea873d
- https://git.kernel.org/stable/c/46aeb66e9e54ed0d56c18615e1c3dbd502b327ab
- https://git.kernel.org/stable/c/54e6fe9dd3b0e7c481c2228782c9494d653546da
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