| 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-2024-56637: netfilter: ipset: Hold module reference while requesting a module |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| netfilter: ipset: Hold module reference while requesting a module |
| |
| User space may unload ip_set.ko while it is itself requesting a set type |
| backend module, leading to a kernel crash. The race condition may be |
| provoked by inserting an mdelay() right after the nfnl_unlock() call. |
| |
| The Linux kernel CVE team has assigned CVE-2024-56637 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.39 with commit a7b4f989a629493bb4ec4a354def784d440b32c4 and fixed in 5.4.287 with commit e5e2d3024753fdaca818b822e3827614bacbdccf |
| Issue introduced in 2.6.39 with commit a7b4f989a629493bb4ec4a354def784d440b32c4 and fixed in 5.10.231 with commit 6099b5d3e37145484fac4b8b4070c3f1abfb3519 |
| Issue introduced in 2.6.39 with commit a7b4f989a629493bb4ec4a354def784d440b32c4 and fixed in 5.15.174 with commit 0e67805e805c1f3edd6f43adbe08ea14b552694b |
| Issue introduced in 2.6.39 with commit a7b4f989a629493bb4ec4a354def784d440b32c4 and fixed in 6.1.120 with commit 5bae60a933ba5d16eed55c6b279be51bcbbc79b0 |
| Issue introduced in 2.6.39 with commit a7b4f989a629493bb4ec4a354def784d440b32c4 and fixed in 6.6.66 with commit 90bf312a6b6b3d6012137f6776a4052ee85e0340 |
| Issue introduced in 2.6.39 with commit a7b4f989a629493bb4ec4a354def784d440b32c4 and fixed in 6.12.5 with commit ba5e070f36682d07ca7ad2a953e6c9d96be19dca |
| Issue introduced in 2.6.39 with commit a7b4f989a629493bb4ec4a354def784d440b32c4 and fixed in 6.13 with commit 456f010bfaefde84d3390c755eedb1b0a5857c3c |
| |
| 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-2024-56637 |
| 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/netfilter/ipset/ip_set_core.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/e5e2d3024753fdaca818b822e3827614bacbdccf |
| https://git.kernel.org/stable/c/6099b5d3e37145484fac4b8b4070c3f1abfb3519 |
| https://git.kernel.org/stable/c/0e67805e805c1f3edd6f43adbe08ea14b552694b |
| https://git.kernel.org/stable/c/5bae60a933ba5d16eed55c6b279be51bcbbc79b0 |
| https://git.kernel.org/stable/c/90bf312a6b6b3d6012137f6776a4052ee85e0340 |
| https://git.kernel.org/stable/c/ba5e070f36682d07ca7ad2a953e6c9d96be19dca |
| https://git.kernel.org/stable/c/456f010bfaefde84d3390c755eedb1b0a5857c3c |
