| 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-2024-53126: vdpa: solidrun: Fix UB bug with devres |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| vdpa: solidrun: Fix UB bug with devres |
| |
| In psnet_open_pf_bar() and snet_open_vf_bar() a string later passed to |
| pcim_iomap_regions() is placed on the stack. Neither |
| pcim_iomap_regions() nor the functions it calls copy that string. |
| |
| Should the string later ever be used, this, consequently, causes |
| undefined behavior since the stack frame will by then have disappeared. |
| |
| Fix the bug by allocating the strings on the heap through |
| devm_kasprintf(). |
| |
| The Linux kernel CVE team has assigned CVE-2024-53126 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.3 with commit 51a8f9d7f587290944d6fc733d1f897091c63159 and fixed in 6.6.63 with commit d372dd09cfbf1324f54cbffd81fcaf6cdf3e608e |
| Issue introduced in 6.3 with commit 51a8f9d7f587290944d6fc733d1f897091c63159 and fixed in 6.11.10 with commit 5bb287da2d2d5bb8f7376e223b02edb16998982e |
| Issue introduced in 6.3 with commit 51a8f9d7f587290944d6fc733d1f897091c63159 and fixed in 6.12 with commit 0b364cf53b20204e92bac7c6ebd1ee7d3ec62931 |
| |
| 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-2024-53126 |
| 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/vdpa/solidrun/snet_main.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/d372dd09cfbf1324f54cbffd81fcaf6cdf3e608e |
| https://git.kernel.org/stable/c/5bb287da2d2d5bb8f7376e223b02edb16998982e |
| https://git.kernel.org/stable/c/0b364cf53b20204e92bac7c6ebd1ee7d3ec62931 |
