| 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-2024-27072: media: usbtv: Remove useless locks in usbtv_video_free() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| media: usbtv: Remove useless locks in usbtv_video_free() |
| |
| Remove locks calls in usbtv_video_free() because |
| are useless and may led to a deadlock as reported here: |
| https://syzkaller.appspot.com/x/bisect.txt?x=166dc872180000 |
| Also remove usbtv_stop() call since it will be called when |
| unregistering the device. |
| |
| Before 'c838530d230b' this issue would only be noticed if you |
| disconnect while streaming and now it is noticeable even when |
| disconnecting while not streaming. |
| |
| |
| [hverkuil: fix minor spelling mistake in log message] |
| |
| The Linux kernel CVE team has assigned CVE-2024-27072 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.11 with commit f3d27f34fdd7701e499617d2c1d94480a98f6d07 and fixed in 5.10.227 with commit 4ec4641df57cbdfdc51bb4959afcdbcf5003ddb9 |
| Issue introduced in 3.11 with commit f3d27f34fdd7701e499617d2c1d94480a98f6d07 and fixed in 5.15.168 with commit d5ed208d04acf06781d63d30f9fa991e8d609ebd |
| Issue introduced in 3.11 with commit f3d27f34fdd7701e499617d2c1d94480a98f6d07 and fixed in 6.1.113 with commit bdd82c47b22a8befd617b723098b2a41b77373c7 |
| Issue introduced in 3.11 with commit f3d27f34fdd7701e499617d2c1d94480a98f6d07 and fixed in 6.6.55 with commit dea46e246ef0f98d89d59a4229157cd9ffb636bf |
| Issue introduced in 3.11 with commit f3d27f34fdd7701e499617d2c1d94480a98f6d07 and fixed in 6.8.2 with commit 3e7d82ebb86e94643bdb30b0b5b077ed27dce1c2 |
| Issue introduced in 3.11 with commit f3d27f34fdd7701e499617d2c1d94480a98f6d07 and fixed in 6.9 with commit 65e6a2773d655172143cc0b927cdc89549842895 |
| |
| 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-2024-27072 |
| 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/media/usb/usbtv/usbtv-video.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/4ec4641df57cbdfdc51bb4959afcdbcf5003ddb9 |
| https://git.kernel.org/stable/c/d5ed208d04acf06781d63d30f9fa991e8d609ebd |
| https://git.kernel.org/stable/c/bdd82c47b22a8befd617b723098b2a41b77373c7 |
| https://git.kernel.org/stable/c/dea46e246ef0f98d89d59a4229157cd9ffb636bf |
| https://git.kernel.org/stable/c/3e7d82ebb86e94643bdb30b0b5b077ed27dce1c2 |
| https://git.kernel.org/stable/c/65e6a2773d655172143cc0b927cdc89549842895 |
