| 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-2024-38545: RDMA/hns: Fix UAF for cq async event |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| RDMA/hns: Fix UAF for cq async event |
| |
| The refcount of CQ is not protected by locks. When CQ asynchronous |
| events and CQ destruction are concurrent, CQ may have been released, |
| which will cause UAF. |
| |
| Use the xa_lock() to protect the CQ refcount. |
| |
| The Linux kernel CVE team has assigned CVE-2024-38545 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.9 with commit 9a4435375cd151e07c0c38fa601b00115986091b and fixed in 5.15.168 with commit 330c825e66ef65278e4ebe57fd49c1d6f3f4e34e |
| Issue introduced in 4.9 with commit 9a4435375cd151e07c0c38fa601b00115986091b and fixed in 6.1.93 with commit 763780ef0336a973e933e40e919339381732dcaf |
| Issue introduced in 4.9 with commit 9a4435375cd151e07c0c38fa601b00115986091b and fixed in 6.6.33 with commit 63da190eeb5c9d849b71f457b15b308c94cbaf08 |
| Issue introduced in 4.9 with commit 9a4435375cd151e07c0c38fa601b00115986091b and fixed in 6.8.12 with commit 39d26cf46306bdc7ae809ecfdbfeff5aa1098911 |
| Issue introduced in 4.9 with commit 9a4435375cd151e07c0c38fa601b00115986091b and fixed in 6.9.3 with commit 37a7559dc1358a8d300437e99ed8ecdab0671507 |
| Issue introduced in 4.9 with commit 9a4435375cd151e07c0c38fa601b00115986091b and fixed in 6.10 with commit a942ec2745ca864cd8512142100e4027dc306a42 |
| |
| 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-2024-38545 |
| 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: |
| drivers/infiniband/hw/hns/hns_roce_cq.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/330c825e66ef65278e4ebe57fd49c1d6f3f4e34e |
| https://git.kernel.org/stable/c/763780ef0336a973e933e40e919339381732dcaf |
| https://git.kernel.org/stable/c/63da190eeb5c9d849b71f457b15b308c94cbaf08 |
| https://git.kernel.org/stable/c/39d26cf46306bdc7ae809ecfdbfeff5aa1098911 |
| https://git.kernel.org/stable/c/37a7559dc1358a8d300437e99ed8ecdab0671507 |
| https://git.kernel.org/stable/c/a942ec2745ca864cd8512142100e4027dc306a42 |
