| 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-2024-27054: s390/dasd: fix double module refcount decrement |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| s390/dasd: fix double module refcount decrement |
| |
| Once the discipline is associated with the device, deleting the device |
| takes care of decrementing the module's refcount. Doing it manually on |
| this error path causes refcount to artificially decrease on each error |
| while it should just stay the same. |
| |
| The Linux kernel CVE team has assigned CVE-2024-27054 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.9 with commit c020d722b110a44c613ef71e657e6dd4116e09d9 and fixed in 5.10.237 with commit 9fe0562179d8fa960afca0eaed6d4ba4122a3cc6 |
| Issue introduced in 4.9 with commit c020d722b110a44c613ef71e657e6dd4116e09d9 and fixed in 5.15.153 with commit edbdb0d94143db46edd373cc93e433832d29fe19 |
| Issue introduced in 4.9 with commit c020d722b110a44c613ef71e657e6dd4116e09d9 and fixed in 6.1.83 with commit ad999aa18103fa038787b6a8a55020abcf34df1a |
| Issue introduced in 4.9 with commit c020d722b110a44c613ef71e657e6dd4116e09d9 and fixed in 6.6.23 with commit ec09bcab32fc4765e0cc97e1b72cdd067135f37e |
| Issue introduced in 4.9 with commit c020d722b110a44c613ef71e657e6dd4116e09d9 and fixed in 6.7.11 with commit fa18aa507ea71d8914b6acb2c94db311c757c650 |
| Issue introduced in 4.9 with commit c020d722b110a44c613ef71e657e6dd4116e09d9 and fixed in 6.8.2 with commit ebc5a3bd79e54f98c885c26f0862a27a02c487c5 |
| Issue introduced in 4.9 with commit c020d722b110a44c613ef71e657e6dd4116e09d9 and fixed in 6.9 with commit c3116e62ddeff79cae342147753ce596f01fcf06 |
| |
| 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-2024-27054 |
| 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/s390/block/dasd.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/9fe0562179d8fa960afca0eaed6d4ba4122a3cc6 |
| https://git.kernel.org/stable/c/edbdb0d94143db46edd373cc93e433832d29fe19 |
| https://git.kernel.org/stable/c/ad999aa18103fa038787b6a8a55020abcf34df1a |
| https://git.kernel.org/stable/c/ec09bcab32fc4765e0cc97e1b72cdd067135f37e |
| https://git.kernel.org/stable/c/fa18aa507ea71d8914b6acb2c94db311c757c650 |
| https://git.kernel.org/stable/c/ebc5a3bd79e54f98c885c26f0862a27a02c487c5 |
| https://git.kernel.org/stable/c/c3116e62ddeff79cae342147753ce596f01fcf06 |
