| 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-2021-47320: nfs: fix acl memory leak of posix_acl_create() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nfs: fix acl memory leak of posix_acl_create() |
| |
| When looking into another nfs xfstests report, I found acl and |
| default_acl in nfs3_proc_create() and nfs3_proc_mknod() error |
| paths are possibly leaked. Fix them in advance. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47320 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 4.4.276 with commit 2e3960f276b4574a9bb0dfa31a7497302f6363b2 |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 4.9.276 with commit cef9d9acb7c80ed6bace894b6334557fd493863b |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 4.14.240 with commit 8a2b308a54c5ec224fedc753617f99b29ffcd883 |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 4.19.198 with commit 0704f617040c397ae73c1f88f3956787ec5d6529 |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 5.4.134 with commit d0b32dc1409f7e65e4fcc34e236462268e69a357 |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 5.10.52 with commit 4b515308ab875c7e8ada8e606fe0c64762da5ed4 |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 5.12.19 with commit c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38 |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 5.13.4 with commit 687cf32865b2d6960214bce523f2afac58dd3cd2 |
| Issue introduced in 3.14 with commit 013cdf1088d7235da9477a2375654921d9b9ba9f and fixed in 5.14 with commit 1fcb6fcd74a222d9ead54d405842fc763bb86262 |
| |
| 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-2021-47320 |
| 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/nfs/nfs3proc.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/2e3960f276b4574a9bb0dfa31a7497302f6363b2 |
| https://git.kernel.org/stable/c/cef9d9acb7c80ed6bace894b6334557fd493863b |
| https://git.kernel.org/stable/c/8a2b308a54c5ec224fedc753617f99b29ffcd883 |
| https://git.kernel.org/stable/c/0704f617040c397ae73c1f88f3956787ec5d6529 |
| https://git.kernel.org/stable/c/d0b32dc1409f7e65e4fcc34e236462268e69a357 |
| https://git.kernel.org/stable/c/4b515308ab875c7e8ada8e606fe0c64762da5ed4 |
| https://git.kernel.org/stable/c/c8fc86e9df6a6a03f5a8e15a3b7a5c75fd05aa38 |
| https://git.kernel.org/stable/c/687cf32865b2d6960214bce523f2afac58dd3cd2 |
| https://git.kernel.org/stable/c/1fcb6fcd74a222d9ead54d405842fc763bb86262 |
