| 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: <2024062137-CVE-2024-38388-fb75@gregkh> Date: Fri, 21 Jun 2024 12:19:44 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2024-38388: ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup Description =========== In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup Use the control private_free callback to free the associated data block. This ensures that the memory won't leak, whatever way the control gets destroyed. The original implementation didn't actually remove the ALSA controls in hda_cs_dsp_control_remove(). It only freed the internal tracking structure. This meant it was possible to remove/unload the amp driver while leaving its ALSA controls still present in the soundcard. Obviously attempting to access them could cause segfaults or at least dereferencing stale pointers. The Linux kernel CVE team has assigned CVE-2024-38388 to this issue. Affected and fixed versions =========================== Issue introduced in 6.0 with commit 3233b978af23 and fixed in 6.1.93 with commit 191dc1b2ff0f Issue introduced in 6.0 with commit 3233b978af23 and fixed in 6.6.33 with commit 6e359be49750 Issue introduced in 6.0 with commit 3233b978af23 and fixed in 6.9.4 with commit 3291486af563 Issue introduced in 6.0 with commit 3233b978af23 and fixed in 6.10-rc1 with commit 172811e3a557 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-2024-38388 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: sound/pci/hda/hda_cs_dsp_ctl.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/191dc1b2ff0fb35e7aff15a53224837637df8bff https://git.kernel.org/stable/c/6e359be4975006ff72818e79dad8fe48293f2eb2 https://git.kernel.org/stable/c/3291486af5636540980ea55bae985f3eaa5b0740 https://git.kernel.org/stable/c/172811e3a557d8681a5e2d0f871dc04a2d17eb13
Powered by blists - more mailing lists