| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-49794: iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| iio: adc: at91_adc: fix possible memory leak in at91_adc_allocate_trigger() |
| |
| If iio_trigger_register() returns error, it should call iio_trigger_free() |
| to give up the reference that hold in iio_trigger_alloc(), so that it can |
| call iio_trig_release() to free memory when the refcount hit to 0. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49794 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.5 with commit 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and fixed in 4.9.334 with commit c3ce73f60599a483dca7becd4112508833a40ef9 |
| Issue introduced in 3.5 with commit 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and fixed in 4.14.300 with commit a0d98ae5a62a7bbad8fcf9fa22e0a1274197bbc4 |
| Issue introduced in 3.5 with commit 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and fixed in 4.19.267 with commit 2b29a7f2d52fb5281b30cf61c947d88bab18a29b |
| Issue introduced in 3.5 with commit 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and fixed in 5.4.225 with commit 7b75515728b628a9a7540f201efdeb8ca7299385 |
| Issue introduced in 3.5 with commit 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and fixed in 5.10.156 with commit 85d2a8b287a89853c0dcfc5a97b5e9d36376fe37 |
| Issue introduced in 3.5 with commit 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and fixed in 5.15.80 with commit 1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4b |
| Issue introduced in 3.5 with commit 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and fixed in 6.0.10 with commit c27a3b6ba23350708cf5ab9962337447b51eb76d |
| Issue introduced in 3.5 with commit 0e589d5fb3172b0dde7fdad3a4829ce5352dd30d and fixed in 6.1 with commit 65f20301607d07ee279b0804d11a05a62a6c1a1c |
| |
| 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-2022-49794 |
| 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/iio/adc/at91_adc.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/c3ce73f60599a483dca7becd4112508833a40ef9 |
| https://git.kernel.org/stable/c/a0d98ae5a62a7bbad8fcf9fa22e0a1274197bbc4 |
| https://git.kernel.org/stable/c/2b29a7f2d52fb5281b30cf61c947d88bab18a29b |
| https://git.kernel.org/stable/c/7b75515728b628a9a7540f201efdeb8ca7299385 |
| https://git.kernel.org/stable/c/85d2a8b287a89853c0dcfc5a97b5e9d36376fe37 |
| https://git.kernel.org/stable/c/1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4b |
| https://git.kernel.org/stable/c/c27a3b6ba23350708cf5ab9962337447b51eb76d |
| https://git.kernel.org/stable/c/65f20301607d07ee279b0804d11a05a62a6c1a1c |
