| 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-2024-49999: afs: Fix the setting of the server responding flag |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| afs: Fix the setting of the server responding flag |
| |
| In afs_wait_for_operation(), we set transcribe the call responded flag to |
| the server record that we used after doing the fileserver iteration loop - |
| but it's possible to exit the loop having had a response from the server |
| that we've discarded (e.g. it returned an abort or we started receiving |
| data, but the call didn't complete). |
| |
| This means that op->server might be NULL, but we don't check that before |
| attempting to set the server flag. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49999 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.8 with commit 98f9fda2057ba34b720c4d353351024d6dcee90f and fixed in 6.10.14 with commit 3d51ab44123f35dd1d646d99a15ebef10f55e263 |
| Issue introduced in 6.8 with commit 98f9fda2057ba34b720c4d353351024d6dcee90f and fixed in 6.11.3 with commit 97c953572d98080c5f1486155350bb688041747a |
| Issue introduced in 6.8 with commit 98f9fda2057ba34b720c4d353351024d6dcee90f and fixed in 6.12 with commit ff98751bae40faed1ba9c6a7287e84430f7dec64 |
| |
| 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-2024-49999 |
| 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/afs/fs_operation.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/3d51ab44123f35dd1d646d99a15ebef10f55e263 |
| https://git.kernel.org/stable/c/97c953572d98080c5f1486155350bb688041747a |
| https://git.kernel.org/stable/c/ff98751bae40faed1ba9c6a7287e84430f7dec64 |
