| 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-2024-38583: nilfs2: fix use-after-free of timer for log writer thread |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nilfs2: fix use-after-free of timer for log writer thread |
| |
| Patch series "nilfs2: fix log writer related issues". |
| |
| This bug fix series covers three nilfs2 log writer-related issues, |
| including a timer use-after-free issue and potential deadlock issue on |
| unmount, and a potential freeze issue in event synchronization found |
| during their analysis. Details are described in each commit log. |
| |
| |
| This patch (of 3): |
| |
| A use-after-free issue has been reported regarding the timer sc_timer on |
| the nilfs_sc_info structure. |
| |
| The problem is that even though it is used to wake up a sleeping log |
| writer thread, sc_timer is not shut down until the nilfs_sc_info structure |
| is about to be freed, and is used regardless of the thread's lifetime. |
| |
| Fix this issue by limiting the use of sc_timer only while the log writer |
| thread is alive. |
| |
| The Linux kernel CVE team has assigned CVE-2024-38583 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 4.19.316 with commit 822ae5a8eac30478578a75f7e064f0584931bf2d |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 5.4.278 with commit 82933c84f188dcfe89eb26b0b48ab5d1ca99d164 |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 5.10.219 with commit 67fa90d4a2ccd9ebb0e1e168c7d0b5d0cf3c7148 |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 5.15.161 with commit e65ccf3a4de4f0c763d94789615b83e11f204438 |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 6.1.94 with commit 86a30d6302deddb9fb97ba6fc4b04d0e870b582a |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 6.6.33 with commit f9186bba4ea282b07293c1c892441df3a5441cb0 |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 6.8.12 with commit 2f12b2c03c5dae1a0de0a9e5853177e3d6eee3c6 |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 6.9.3 with commit 68e738be5c518fc3c4e9146b66f67c8fee0135fb |
| Issue introduced in 2.6.35 with commit fdce895ea5dd4e24edf1f4d693827349a4e5b3b4 and fixed in 6.10 with commit f5d4e04634c9cf68bdf23de08ada0bb92e8befe7 |
| |
| 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-2024-38583 |
| 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: |
| fs/nilfs2/segment.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/822ae5a8eac30478578a75f7e064f0584931bf2d |
| https://git.kernel.org/stable/c/82933c84f188dcfe89eb26b0b48ab5d1ca99d164 |
| https://git.kernel.org/stable/c/67fa90d4a2ccd9ebb0e1e168c7d0b5d0cf3c7148 |
| https://git.kernel.org/stable/c/e65ccf3a4de4f0c763d94789615b83e11f204438 |
| https://git.kernel.org/stable/c/86a30d6302deddb9fb97ba6fc4b04d0e870b582a |
| https://git.kernel.org/stable/c/f9186bba4ea282b07293c1c892441df3a5441cb0 |
| https://git.kernel.org/stable/c/2f12b2c03c5dae1a0de0a9e5853177e3d6eee3c6 |
| https://git.kernel.org/stable/c/68e738be5c518fc3c4e9146b66f67c8fee0135fb |
| https://git.kernel.org/stable/c/f5d4e04634c9cf68bdf23de08ada0bb92e8befe7 |
