| 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-2022-48789: nvme-tcp: fix possible use-after-free in transport error_recovery work |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nvme-tcp: fix possible use-after-free in transport error_recovery work |
| |
| While nvme_tcp_submit_async_event_work is checking the ctrl and queue |
| state before preparing the AER command and scheduling io_work, in order |
| to fully prevent a race where this check is not reliable the error |
| recovery work must flush async_event_work before continuing to destroy |
| the admin queue after setting the ctrl state to RESETTING such that |
| there is no race .submit_async_event and the error recovery handler |
| itself changing the ctrl state. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48789 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.4.181 with commit 61a26ffd5ad3ece456d74c4c79f7b5e3f440a141 |
| Fixed in 5.10.102 with commit e192184cf8bce8dd55d619f5611a2eaba996fa05 |
| Fixed in 5.15.25 with commit 5e42fca37ccc76f39f73732661bd47254cad5982 |
| Fixed in 5.16.11 with commit bb0d8fb35c4ff00a503c2c4dca4cce8d102a21c4 |
| Fixed in 5.17 with commit ff9fc7ebf5c06de1ef72a69f9b1ab40af8b07f9e |
| |
| 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-2022-48789 |
| 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/nvme/host/tcp.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/61a26ffd5ad3ece456d74c4c79f7b5e3f440a141 |
| https://git.kernel.org/stable/c/e192184cf8bce8dd55d619f5611a2eaba996fa05 |
| https://git.kernel.org/stable/c/5e42fca37ccc76f39f73732661bd47254cad5982 |
| https://git.kernel.org/stable/c/bb0d8fb35c4ff00a503c2c4dca4cce8d102a21c4 |
| https://git.kernel.org/stable/c/ff9fc7ebf5c06de1ef72a69f9b1ab40af8b07f9e |
