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Message-ID: <2024051728-CVE-2023-52667-649b@gregkh> Date: Fri, 17 May 2024 16:01:28 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.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 0f575c20bf06 and fixed in 5.15.149 with commit 72a729868592 Issue introduced in 5.13 with commit 0f575c20bf06 and fixed in 6.1.76 with commit b2fa86b2aceb Issue introduced in 5.13 with commit 0f575c20bf06 and fixed in 6.6.15 with commit 2897c981ee63 Issue introduced in 5.13 with commit 0f575c20bf06 and fixed in 6.7.3 with commit 65a4ade8a6d2 Issue introduced in 5.13 with commit 0f575c20bf06 and fixed in 6.8 with commit aef855df7e1b 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
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