| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <2025022623-CVE-2022-49232-bf6c@gregkh> Date: Wed, 26 Feb 2025 02:57:17 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2022-49232: drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes() Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes() In amdgpu_dm_connector_add_common_modes(), amdgpu_dm_create_common_mode() is assigned to mode and is passed to drm_mode_probed_add() directly after that. drm_mode_probed_add() passes &mode->head to list_add_tail(), and there is a dereference of it in list_add_tail() without recoveries, which could lead to NULL pointer dereference on failure of amdgpu_dm_create_common_mode(). Fix this by adding a NULL check of mode. This bug was found by a static analyzer. Builds with 'make allyesconfig' show no new warnings, and our static analyzer no longer warns about this code. The Linux kernel CVE team has assigned CVE-2022-49232 to this issue. Affected and fixed versions =========================== Issue introduced in 4.15 with commit e7b07ceef2a650e5ed8ca37997689e086c680daf and fixed in 4.19.238 with commit 2c729dec8c1e3e2892fde5ce8181553860914e74 Issue introduced in 4.15 with commit e7b07ceef2a650e5ed8ca37997689e086c680daf and fixed in 5.4.189 with commit 57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9 Issue introduced in 4.15 with commit e7b07ceef2a650e5ed8ca37997689e086c680daf and fixed in 5.10.110 with commit 19a7eba284790cfbba2945deb2363cf03ce41648 Issue introduced in 4.15 with commit e7b07ceef2a650e5ed8ca37997689e086c680daf and fixed in 5.15.33 with commit bdc7429708a0772d90c208975694f7c2133b1202 Issue introduced in 4.15 with commit e7b07ceef2a650e5ed8ca37997689e086c680daf and fixed in 5.16.19 with commit f4eaa999fec78dec2a9c2d797438e05cbffb125b Issue introduced in 4.15 with commit e7b07ceef2a650e5ed8ca37997689e086c680daf and fixed in 5.17.2 with commit 639b3b9def0a6a3f316a195d705d14113236e89c Issue introduced in 4.15 with commit e7b07ceef2a650e5ed8ca37997689e086c680daf and fixed in 5.18 with commit 588a70177df3b1777484267584ef38ab2ca899a2 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-2022-49232 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/display/amdgpu_dm/amdgpu_dm.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/2c729dec8c1e3e2892fde5ce8181553860914e74 https://git.kernel.org/stable/c/57f4ad5e286fe4599c8fc63cf89f85f9eec7f9c9 https://git.kernel.org/stable/c/19a7eba284790cfbba2945deb2363cf03ce41648 https://git.kernel.org/stable/c/bdc7429708a0772d90c208975694f7c2133b1202 https://git.kernel.org/stable/c/f4eaa999fec78dec2a9c2d797438e05cbffb125b https://git.kernel.org/stable/c/639b3b9def0a6a3f316a195d705d14113236e89c https://git.kernel.org/stable/c/588a70177df3b1777484267584ef38ab2ca899a2
Powered by blists - more mailing lists