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Message-ID: <2024051754-CVE-2023-52691-bad0@gregkh> Date: Fri, 17 May 2024 16:27:04 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2023-52691: drm/amd/pm: fix a double-free in si_dpm_init Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix a double-free in si_dpm_init When the allocation of adev->pm.dpm.dyn_state.vddc_dependency_on_dispclk.entries fails, amdgpu_free_extended_power_table is called to free some fields of adev. However, when the control flow returns to si_dpm_sw_init, it goes to label dpm_failed and calls si_dpm_fini, which calls amdgpu_free_extended_power_table again and free those fields again. Thus a double-free is triggered. The Linux kernel CVE team has assigned CVE-2023-52691 to this issue. Affected and fixed versions =========================== Issue introduced in 4.9 with commit 841686df9f7d and fixed in 4.19.306 with commit afe9f5b871f8 Issue introduced in 4.9 with commit 841686df9f7d and fixed in 5.4.268 with commit 06d95c99d5a4 Issue introduced in 4.9 with commit 841686df9f7d and fixed in 5.10.209 with commit aeed2b4e4a70 Issue introduced in 4.9 with commit 841686df9f7d and fixed in 5.15.148 with commit 2bf47c89bbac Issue introduced in 4.9 with commit 841686df9f7d and fixed in 6.1.75 with commit f957a1be647f Issue introduced in 4.9 with commit 841686df9f7d and fixed in 6.6.14 with commit fb1936cb5872 Issue introduced in 4.9 with commit 841686df9f7d and fixed in 6.7.2 with commit ca8e2e251c65 Issue introduced in 4.9 with commit 841686df9f7d and fixed in 6.8 with commit ac16667237a8 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-2023-52691 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/gpu/drm/amd/pm/legacy-dpm/si_dpm.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/afe9f5b871f86d58ecdc45b217b662227d7890d0 https://git.kernel.org/stable/c/06d95c99d5a4f5accdb79464076efe62e668c706 https://git.kernel.org/stable/c/aeed2b4e4a70c7568d4a5eecd6a109713c0dfbf4 https://git.kernel.org/stable/c/2bf47c89bbaca2bae16581ef1b28aaec0ade0334 https://git.kernel.org/stable/c/f957a1be647f7fc65926cbf572992ec2747a93f2 https://git.kernel.org/stable/c/fb1936cb587262cd539e84b34541abb06e42b2f9 https://git.kernel.org/stable/c/ca8e2e251c65e5a712f6025e27bd9b26d16e6f4a https://git.kernel.org/stable/c/ac16667237a82e2597e329eb9bc520d1cf9dff30
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