| 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-2022-49912: btrfs: fix ulist leaks in error paths of qgroup self tests |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| btrfs: fix ulist leaks in error paths of qgroup self tests |
| |
| In the test_no_shared_qgroup() and test_multiple_refs() qgroup self tests, |
| if we fail to add the tree ref, remove the extent item or remove the |
| extent ref, we are returning from the test function without freeing the |
| "old_roots" ulist that was allocated by the previous calls to |
| btrfs_find_all_roots(). Fix that by calling ulist_free() before returning. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49912 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.2 with commit 442244c9633292a147ab2b29e7007a7c8a3909b2 and fixed in 4.9.333 with commit d81370396025cf63a7a1b5f8bb25a3479203b2ca |
| Issue introduced in 4.2 with commit 442244c9633292a147ab2b29e7007a7c8a3909b2 and fixed in 4.14.299 with commit 3f58283d83a588ff5da62fc150de19e798ed2ec2 |
| Issue introduced in 4.2 with commit 442244c9633292a147ab2b29e7007a7c8a3909b2 and fixed in 4.19.265 with commit 203204798831c35d855ecc6417d98267d2d2184b |
| Issue introduced in 4.2 with commit 442244c9633292a147ab2b29e7007a7c8a3909b2 and fixed in 5.4.224 with commit 5d1a47ebf84540e40b5b43fc21aef0d6c0f627d9 |
| Issue introduced in 4.2 with commit 442244c9633292a147ab2b29e7007a7c8a3909b2 and fixed in 5.10.154 with commit 0a0dead4ad1a2e2a9bdf133ef45111d7c8daef84 |
| Issue introduced in 4.2 with commit 442244c9633292a147ab2b29e7007a7c8a3909b2 and fixed in 5.15.78 with commit f46ea5fa3320dca4fe0c0926b49a5f14cb85de62 |
| Issue introduced in 4.2 with commit 442244c9633292a147ab2b29e7007a7c8a3909b2 and fixed in 6.0.8 with commit da7003434bcab0ae9aba3f2c003e734cae093326 |
| Issue introduced in 4.2 with commit 442244c9633292a147ab2b29e7007a7c8a3909b2 and fixed in 6.1 with commit d37de92b38932d40e4a251e876cc388f9aee5f42 |
| |
| 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-2022-49912 |
| 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/tests/qgroup-tests.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/d81370396025cf63a7a1b5f8bb25a3479203b2ca |
| https://git.kernel.org/stable/c/3f58283d83a588ff5da62fc150de19e798ed2ec2 |
| https://git.kernel.org/stable/c/203204798831c35d855ecc6417d98267d2d2184b |
| https://git.kernel.org/stable/c/5d1a47ebf84540e40b5b43fc21aef0d6c0f627d9 |
| https://git.kernel.org/stable/c/0a0dead4ad1a2e2a9bdf133ef45111d7c8daef84 |
| https://git.kernel.org/stable/c/f46ea5fa3320dca4fe0c0926b49a5f14cb85de62 |
| https://git.kernel.org/stable/c/da7003434bcab0ae9aba3f2c003e734cae093326 |
| https://git.kernel.org/stable/c/d37de92b38932d40e4a251e876cc388f9aee5f42 |
