| 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-2024-49877: ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate |
| |
| When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger |
| NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if |
| bh is NULL. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49877 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.19.87 with commit 6c150df9c2e80b5cf86f5a0d98beb7390ad63bfc and fixed in 4.19.323 with commit 190d98bcd61117a78fe185222d162180f061a6ca |
| Issue introduced in 4.20 with commit cf76c78595ca87548ca5e45c862ac9e0949c4687 and fixed in 5.4.285 with commit e68c8323355e8cedfbe0bec7d5a39009f61640b6 |
| Issue introduced in 4.20 with commit cf76c78595ca87548ca5e45c862ac9e0949c4687 and fixed in 5.10.227 with commit 61b84013e560382cbe7dd56758be3154d43a3988 |
| Issue introduced in 4.20 with commit cf76c78595ca87548ca5e45c862ac9e0949c4687 and fixed in 5.15.168 with commit df944dc46d06af65a75191183d52be017e6b9dbe |
| Issue introduced in 4.20 with commit cf76c78595ca87548ca5e45c862ac9e0949c4687 and fixed in 6.1.113 with commit 01cb2e751cc61ade454c9bc1aaa2eac1f8197112 |
| Issue introduced in 4.20 with commit cf76c78595ca87548ca5e45c862ac9e0949c4687 and fixed in 6.6.55 with commit d52c5652e7dcb7a0648bbb8642cc3e617070ab49 |
| Issue introduced in 4.20 with commit cf76c78595ca87548ca5e45c862ac9e0949c4687 and fixed in 6.10.14 with commit 46b1edf0536a5291a8ad2337f88c926214b209d9 |
| Issue introduced in 4.20 with commit cf76c78595ca87548ca5e45c862ac9e0949c4687 and fixed in 6.11.3 with commit 4846e72ab5a0726e49ad4188b9d9df091ae78c64 |
| Issue introduced in 4.20 with commit cf76c78595ca87548ca5e45c862ac9e0949c4687 and fixed in 6.12 with commit 33b525cef4cff49e216e4133cc48452e11c0391e |
| Issue introduced in 4.4.204 with commit 01f93d5e36753fc4d06ec67f05ce78c9c6f2dd56 |
| Issue introduced in 4.9.204 with commit 65cbd1279f4b999d56a838344a30642db24cd215 |
| Issue introduced in 4.14.157 with commit 97e1db17bc1ef4c2e1789bc9323c7be44fba53f8 |
| |
| 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-2024-49877 |
| 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/ocfs2/buffer_head_io.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/190d98bcd61117a78fe185222d162180f061a6ca |
| https://git.kernel.org/stable/c/e68c8323355e8cedfbe0bec7d5a39009f61640b6 |
| https://git.kernel.org/stable/c/61b84013e560382cbe7dd56758be3154d43a3988 |
| https://git.kernel.org/stable/c/df944dc46d06af65a75191183d52be017e6b9dbe |
| https://git.kernel.org/stable/c/01cb2e751cc61ade454c9bc1aaa2eac1f8197112 |
| https://git.kernel.org/stable/c/d52c5652e7dcb7a0648bbb8642cc3e617070ab49 |
| https://git.kernel.org/stable/c/46b1edf0536a5291a8ad2337f88c926214b209d9 |
| https://git.kernel.org/stable/c/4846e72ab5a0726e49ad4188b9d9df091ae78c64 |
| https://git.kernel.org/stable/c/33b525cef4cff49e216e4133cc48452e11c0391e |
