| 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-2022-49545: ALSA: usb-audio: Cancel pending work at closing a MIDI substream |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ALSA: usb-audio: Cancel pending work at closing a MIDI substream |
| |
| At closing a USB MIDI output substream, there might be still a pending |
| work, which would eventually access the rawmidi runtime object that is |
| being released. For fixing the race, make sure to cancel the pending |
| work at closing. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49545 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.10.121 with commit 40bdb5ec957aca5c5c1924602bef6b0ab18e22d3 |
| Fixed in 5.15.46 with commit 11868ca21585561659c2575b0d6508ef8e9c4291 |
| Fixed in 5.17.14 with commit 5e5fe2b6065541c6216a7a003b0cddf386be0d2d |
| Fixed in 5.18.3 with commit 517dcef4d2dda0132648f1e4c079ed17bba4d1a4 |
| Fixed in 5.19 with commit 0125de38122f0f66bf61336158d12a1aabfe6425 |
| |
| 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-2022-49545 |
| 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: |
| sound/usb/midi.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/40bdb5ec957aca5c5c1924602bef6b0ab18e22d3 |
| https://git.kernel.org/stable/c/11868ca21585561659c2575b0d6508ef8e9c4291 |
| https://git.kernel.org/stable/c/5e5fe2b6065541c6216a7a003b0cddf386be0d2d |
| https://git.kernel.org/stable/c/517dcef4d2dda0132648f1e4c079ed17bba4d1a4 |
| https://git.kernel.org/stable/c/0125de38122f0f66bf61336158d12a1aabfe6425 |
