CVE-2025-38588
published 2025-08-19CVE-2025-38588: 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…
medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
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
38 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.148-1 (bookworm) | linux 6.1.148-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.148-1 (bookworm) | linux 6.1.148-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 34a949e7a0869dfa31a40416d2a56973fae1807b < cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38 | cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38 |
| linux | linux | >= 52da02521ede55fb86546c3fffd9377b3261b91f < e1b7932af47f92432be8303d2439d1bf77b0be23 | e1b7932af47f92432be8303d2439d1bf77b0be23 |
| linux | linux | >= 6.1.128 < 6.1.148 | 6.1.148 |
| linux | linux | >= 6.11.11 < 6.12 | 6.12 |
| linux | linux | >= 6.12.2 < 6.12.42 | 6.12.42 |
| linux | linux | >= 6.6.75 < 6.6.102 | 6.6.102 |
| linux | linux | >= d0ec61c9f3583b76aebdbb271f5c0d3fcccd48b2 < 6d345136c9b875f065d226908a29c25cdf9343f8 | 6d345136c9b875f065d226908a29c25cdf9343f8 |
| linux | linux | >= d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 3c13db3e47e170bab19e574404e7b6be45ea873d | 3c13db3e47e170bab19e574404e7b6be45ea873d |
| linux | linux | >= d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 46aeb66e9e54ed0d56c18615e1c3dbd502b327ab | 46aeb66e9e54ed0d56c18615e1c3dbd502b327ab |
| linux | linux | >= d9ccb18f83ea2bb654289b6ecf014fd267cc988b < 54e6fe9dd3b0e7c481c2228782c9494d653546da | 54e6fe9dd3b0e7c481c2228782c9494d653546da |
| linux | linux_kernel | >= 0 < 6.1.148-1 | 6.1.148-1 |
| linux | linux_kernel | >= 0 < 6.12.43-1 | 6.12.43-1 |
| linux | linux_kernel | >= 0 < 6.16.3-1 | 6.16.3-1 |
| linux | linux_kernel | >= 0 < 6.8.0-100.100 | 6.8.0-100.100 |
| linux | linux_kernel | >= 6.1.128 < 6.1.148 | 6.1.148 |
| linux | linux_kernel | >= 6.11.11 < 6.12 | 6.12 |
| linux | linux_kernel | >= 6.12.2 < 6.12.42 | 6.12.42 |
| linux | linux_kernel | >= 6.13 < 6.15.10 | 6.15.10 |
| linux | linux_kernel | >= 6.16 < 6.16.1 | 6.16.1 |
| linux | linux_kernel | >= 6.6.75 < 6.6.102 | 6.6.102 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM