{"id":"CVE-2024-46798","summary":"ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: dapm: Fix UAF for snd_soc_pcm_runtime object\n\nWhen using kernel with the following extra config,\n\n  - CONFIG_KASAN=y\n  - CONFIG_KASAN_GENERIC=y\n  - CONFIG_KASAN_INLINE=y\n  - CONFIG_KASAN_VMALLOC=y\n  - CONFIG_FRAME_WARN=4096\n\nkernel detects that snd_pcm_suspend_all() access a freed\n'snd_soc_pcm_runtime' object when the system is suspended, which\nleads to a use-after-free bug:\n\n[   52.047746] BUG: KASAN: use-after-free in snd_pcm_suspend_all+0x1a8/0x270\n[   52.047765] Read of size 1 at addr ffff0000b9434d50 by task systemd-sleep/2330\n\n[   52.047785] Call trace:\n[   52.047787]  dump_backtrace+0x0/0x3c0\n[   52.047794]  show_stack+0x34/0x50\n[   52.047797]  dump_stack_lvl+0x68/0x8c\n[   52.047802]  print_address_description.constprop.0+0x74/0x2c0\n[   52.047809]  kasan_report+0x210/0x230\n[   52.047815]  __asan_report_load1_noabort+0x3c/0x50\n[   52.047820]  snd_pcm_suspend_all+0x1a8/0x270\n[   52.047824]  snd_soc_suspend+0x19c/0x4e0\n\nThe snd_pcm_sync_stop() has a NULL check on 'substream-\u003eruntime' before\nmaking any access. So we need to always set 'substream-\u003eruntime' to NULL\neverytime we kfree() it.","modified":"2026-04-16T04:36:15.938468608Z","published":"2024-09-18T07:12:52.628Z","related":["SUSE-SU-2024:3551-1","SUSE-SU-2024:3553-1","SUSE-SU-2024:3561-1","SUSE-SU-2024:3564-1","SUSE-SU-2024:3569-1","SUSE-SU-2024:3587-1","SUSE-SU-2024:3592-1","SUSE-SU-2025:20073-1","SUSE-SU-2025:20077-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46798.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3033ed903b4f28b5e1ab66042084fbc2c48f8624"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5d13afd021eb43868fe03cef6da34ad08831ad6d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6a14fad8be178df6c4589667efec1789a3307b4e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ca21e7a27c66b95a4b215edc8e45e5d66679f9f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/993b60c7f93fa1d8ff296b58f646a867e945ae89"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b4a90b543d9f62d3ac34ec1ab97fc5334b048565"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe5046ca91d631ec432eee3bdb1f1c49b09c8b5e"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46798.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-46798"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a72706ed8208ac3f72d1c3ebbc6509e368b0dcb0"},{"fixed":"993b60c7f93fa1d8ff296b58f646a867e945ae89"},{"fixed":"8ca21e7a27c66b95a4b215edc8e45e5d66679f9f"},{"fixed":"3033ed903b4f28b5e1ab66042084fbc2c48f8624"},{"fixed":"fe5046ca91d631ec432eee3bdb1f1c49b09c8b5e"},{"fixed":"5d13afd021eb43868fe03cef6da34ad08831ad6d"},{"fixed":"6a14fad8be178df6c4589667efec1789a3307b4e"},{"fixed":"b4a90b543d9f62d3ac34ec1ab97fc5334b048565"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46798.json"}}],"schema_version":"1.7.5"}