| From bippy-7c5fe7eed585 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-2024-46753: btrfs: handle errors from btrfs_dec_ref() properly |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| btrfs: handle errors from btrfs_dec_ref() properly |
| |
| In walk_up_proc() we BUG_ON(ret) from btrfs_dec_ref(). This is |
| incorrect, we have proper error handling here, return the error. |
| |
| The Linux kernel CVE team has assigned CVE-2024-46753 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.10.236 with commit 0e4840ae09f375381167000ce47424818fcbcc7c |
| Fixed in 5.15.180 with commit 2c4fe45351e544da4b8f10c74b277117a4fa7869 |
| Fixed in 6.1.134 with commit 9c8237021b53d52357c0de07a768582fafb2791d |
| Fixed in 6.6.87 with commit 67e4ca7ddc67ef949326b4dc404a9678bbe67d72 |
| Fixed in 6.10.10 with commit a7f16a7a709845855cb5a0e080a52bda5873f9de |
| Fixed in 6.11 with commit 5eb178f373b4f16f3b42d55ff88fc94dd95b93b1 |
| |
| 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-2024-46753 |
| 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/btrfs/extent-tree.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/0e4840ae09f375381167000ce47424818fcbcc7c |
| https://git.kernel.org/stable/c/2c4fe45351e544da4b8f10c74b277117a4fa7869 |
| https://git.kernel.org/stable/c/9c8237021b53d52357c0de07a768582fafb2791d |
| https://git.kernel.org/stable/c/67e4ca7ddc67ef949326b4dc404a9678bbe67d72 |
| https://git.kernel.org/stable/c/a7f16a7a709845855cb5a0e080a52bda5873f9de |
| https://git.kernel.org/stable/c/5eb178f373b4f16f3b42d55ff88fc94dd95b93b1 |
