| 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-2024-42307: cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path |
| |
| Dan Carpenter reported a Smack static checker warning: |
| fs/smb/client/cifsfs.c:1981 init_cifs() |
| error: we previously assumed 'serverclose_wq' could be null (see line 1895) |
| |
| The patch which introduced the serverclose workqueue used the wrong |
| oredering in error paths in init_cifs() for freeing it on errors. |
| |
| The Linux kernel CVE team has assigned CVE-2024-42307 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.1.85 with commit 8c99dfb49bdc17edffc7ff3d46b400c8c291686c and fixed in 6.1.103 with commit 6018971710fdc7739f8655c1540832b4bb903671 |
| Issue introduced in 6.6.26 with commit 6f17163b9339fac92023a1d9bef22128db3b9a4b and fixed in 6.6.44 with commit 160235efb4f9b55212dedff5de0094c606c4b303 |
| Issue introduced in 6.9 with commit 173217bd73365867378b5e75a86f0049e1069ee8 and fixed in 6.10.3 with commit 3739d711246d8fbc95ff73dbdace9741cdce4777 |
| Issue introduced in 6.9 with commit 173217bd73365867378b5e75a86f0049e1069ee8 and fixed in 6.11 with commit 193cc89ea0ca1da311877d2b4bb5e9f03bcc82a2 |
| Issue introduced in 6.8.5 with commit 40a5d14c9d3b585d55d3209fb5efe202dcaac926 |
| |
| 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-2024-42307 |
| 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: |
| fs/smb/client/cifsfs.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/6018971710fdc7739f8655c1540832b4bb903671 |
| https://git.kernel.org/stable/c/160235efb4f9b55212dedff5de0094c606c4b303 |
| https://git.kernel.org/stable/c/3739d711246d8fbc95ff73dbdace9741cdce4777 |
| https://git.kernel.org/stable/c/193cc89ea0ca1da311877d2b4bb5e9f03bcc82a2 |
