| 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-2023-53051: dm crypt: add cond_resched() to dmcrypt_write() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| dm crypt: add cond_resched() to dmcrypt_write() |
| |
| The loop in dmcrypt_write may be running for unbounded amount of time, |
| thus we need cond_resched() in it. |
| |
| This commit fixes the following warning: |
| |
| [ 3391.153255][ C12] watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [dmcrypt_write/2:2897] |
| ... |
| [ 3391.387210][ C12] Call trace: |
| [ 3391.390338][ C12] blk_attempt_bio_merge.part.6+0x38/0x158 |
| [ 3391.395970][ C12] blk_attempt_plug_merge+0xc0/0x1b0 |
| [ 3391.401085][ C12] blk_mq_submit_bio+0x398/0x550 |
| [ 3391.405856][ C12] submit_bio_noacct+0x308/0x380 |
| [ 3391.410630][ C12] dmcrypt_write+0x1e4/0x208 [dm_crypt] |
| [ 3391.416005][ C12] kthread+0x130/0x138 |
| [ 3391.419911][ C12] ret_from_fork+0x10/0x18 |
| |
| The Linux kernel CVE team has assigned CVE-2023-53051 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.0 with commit dc2676210c425ee8e5cb1bec5bc84d004ddf4179 and fixed in 4.14.312 with commit e87cd83f70504f1cd2e428966f353c007d6d2d7f |
| Issue introduced in 4.0 with commit dc2676210c425ee8e5cb1bec5bc84d004ddf4179 and fixed in 4.19.280 with commit 7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6 |
| Issue introduced in 4.0 with commit dc2676210c425ee8e5cb1bec5bc84d004ddf4179 and fixed in 5.4.240 with commit 885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1 |
| Issue introduced in 4.0 with commit dc2676210c425ee8e5cb1bec5bc84d004ddf4179 and fixed in 5.10.177 with commit 66ff37993dd7e9954b6446237fe2453b380ce40d |
| Issue introduced in 4.0 with commit dc2676210c425ee8e5cb1bec5bc84d004ddf4179 and fixed in 5.15.105 with commit eb485b7404a281d974bd445ddc5b0b8d5958f371 |
| Issue introduced in 4.0 with commit dc2676210c425ee8e5cb1bec5bc84d004ddf4179 and fixed in 6.1.22 with commit f0eb61b493dbbc32529fbd0d2e945b71b0e47306 |
| Issue introduced in 4.0 with commit dc2676210c425ee8e5cb1bec5bc84d004ddf4179 and fixed in 6.2.9 with commit 2c743db1193bf0e76c73d71ede08bd9b96e6c31d |
| Issue introduced in 4.0 with commit dc2676210c425ee8e5cb1bec5bc84d004ddf4179 and fixed in 6.3 with commit fb294b1c0ba982144ca467a75e7d01ff26304e2b |
| |
| 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-2023-53051 |
| 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/md/dm-crypt.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/e87cd83f70504f1cd2e428966f353c007d6d2d7f |
| https://git.kernel.org/stable/c/7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6 |
| https://git.kernel.org/stable/c/885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1 |
| https://git.kernel.org/stable/c/66ff37993dd7e9954b6446237fe2453b380ce40d |
| https://git.kernel.org/stable/c/eb485b7404a281d974bd445ddc5b0b8d5958f371 |
| https://git.kernel.org/stable/c/f0eb61b493dbbc32529fbd0d2e945b71b0e47306 |
| https://git.kernel.org/stable/c/2c743db1193bf0e76c73d71ede08bd9b96e6c31d |
| https://git.kernel.org/stable/c/fb294b1c0ba982144ca467a75e7d01ff26304e2b |
