| 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-2023-52667: net/mlx5e: fix a potential double-free in fs_any_create_groups |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net/mlx5e: fix a potential double-free in fs_any_create_groups |
| |
| When kcalloc() for ft->g succeeds but kvzalloc() for in fails, |
| fs_any_create_groups() will free ft->g. However, its caller |
| fs_any_create_table() will free ft->g again through calling |
| mlx5e_destroy_flow_table(), which will lead to a double-free. |
| Fix this by setting ft->g to NULL in fs_any_create_groups(). |
| |
| The Linux kernel CVE team has assigned CVE-2023-52667 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.13 with commit 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 and fixed in 5.15.149 with commit 72a729868592752b5a294d27453da264106983b1 |
| Issue introduced in 5.13 with commit 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 and fixed in 6.1.76 with commit b2fa86b2aceb4bc9ada51cea90f61546d7512cbe |
| Issue introduced in 5.13 with commit 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 and fixed in 6.6.15 with commit 2897c981ee63e1be5e530b1042484626a10b26d8 |
| Issue introduced in 5.13 with commit 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 and fixed in 6.7.3 with commit 65a4ade8a6d205979292e88beeb6a626ddbd4779 |
| Issue introduced in 5.13 with commit 0f575c20bf0686caf3d82d6c626c2e1e4a4c36e6 and fixed in 6.8 with commit aef855df7e1bbd5aa4484851561211500b22707e |
| |
| 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-2023-52667 |
| 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: |
| drivers/net/ethernet/mellanox/mlx5/core/en/fs_tt_redirect.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/72a729868592752b5a294d27453da264106983b1 |
| https://git.kernel.org/stable/c/b2fa86b2aceb4bc9ada51cea90f61546d7512cbe |
| https://git.kernel.org/stable/c/2897c981ee63e1be5e530b1042484626a10b26d8 |
| https://git.kernel.org/stable/c/65a4ade8a6d205979292e88beeb6a626ddbd4779 |
| https://git.kernel.org/stable/c/aef855df7e1bbd5aa4484851561211500b22707e |
