| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-27417: ipv6: fix potential "struct net" leak in inet6_rtm_getaddr() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ipv6: fix potential "struct net" leak in inet6_rtm_getaddr() |
| |
| It seems that if userspace provides a correct IFA_TARGET_NETNSID value |
| but no IFA_ADDRESS and IFA_LOCAL attributes, inet6_rtm_getaddr() |
| returns -EINVAL with an elevated "struct net" refcount. |
| |
| The Linux kernel CVE team has assigned CVE-2024-27417 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.20 with commit 6ecf4c37eb3e89b0832c9616089a5cdca3747da7 and fixed in 5.4.271 with commit 9d4ffb5b9d879a75e4f7460e8b10e756b4dfb132 |
| Issue introduced in 4.20 with commit 6ecf4c37eb3e89b0832c9616089a5cdca3747da7 and fixed in 5.10.212 with commit 810fa7d5e5202fcfb22720304b755f1bdfd4c174 |
| Issue introduced in 4.20 with commit 6ecf4c37eb3e89b0832c9616089a5cdca3747da7 and fixed in 5.15.151 with commit 8a54834c03c30e549c33d5da0975f3e1454ec906 |
| Issue introduced in 4.20 with commit 6ecf4c37eb3e89b0832c9616089a5cdca3747da7 and fixed in 6.1.81 with commit 1b0998fdd85776775d975d0024bca227597e836a |
| Issue introduced in 4.20 with commit 6ecf4c37eb3e89b0832c9616089a5cdca3747da7 and fixed in 6.6.21 with commit 44112bc5c74e64f28f5a9127dc34066c7a09bd0f |
| Issue introduced in 4.20 with commit 6ecf4c37eb3e89b0832c9616089a5cdca3747da7 and fixed in 6.7.9 with commit 33a1b6bfef6def2068c8703403759024ce17053e |
| Issue introduced in 4.20 with commit 6ecf4c37eb3e89b0832c9616089a5cdca3747da7 and fixed in 6.8 with commit 10bfd453da64a057bcfd1a49fb6b271c48653cdb |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-27417 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| net/ipv6/addrconf.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/9d4ffb5b9d879a75e4f7460e8b10e756b4dfb132 |
| https://git.kernel.org/stable/c/810fa7d5e5202fcfb22720304b755f1bdfd4c174 |
| https://git.kernel.org/stable/c/8a54834c03c30e549c33d5da0975f3e1454ec906 |
| https://git.kernel.org/stable/c/1b0998fdd85776775d975d0024bca227597e836a |
| https://git.kernel.org/stable/c/44112bc5c74e64f28f5a9127dc34066c7a09bd0f |
| https://git.kernel.org/stable/c/33a1b6bfef6def2068c8703403759024ce17053e |
| https://git.kernel.org/stable/c/10bfd453da64a057bcfd1a49fb6b271c48653cdb |
