发布时间: 2024年10月12日
修改时间: 2024年10月14日
In the Linux kernel, the following vulnerability has been resolved:ASoC: dapm: Fix UAF for snd_soc_pcm_runtime objectWhen using kernel with the following extra config, - CONFIG_KASAN=y - CONFIG_KASAN_GENERIC=y - CONFIG_KASAN_INLINE=y - CONFIG_KASAN_VMALLOC=y - CONFIG_FRAME_WARN=4096kernel detects that snd_pcm_suspend_all() access a freed snd_soc_pcm_runtime object when the system is suspended, whichleads to a use-after-free bug:[ 52.047746] BUG: KASAN: use-after-free in snd_pcm_suspend_all+0x1a8/0x270[ 52.047765] Read of size 1 at addr ffff0000b9434d50 by task systemd-sleep/2330[ 52.047785] Call trace:[ 52.047787] dump_backtrace+0x0/0x3c0[ 52.047794] show_stack+0x34/0x50[ 52.047797] dump_stack_lvl+0x68/0x8c[ 52.047802] print_address_description.constprop.0+0x74/0x2c0[ 52.047809] kasan_report+0x210/0x230[ 52.047815] __asan_report_load1_noabort+0x3c/0x50[ 52.047820] snd_pcm_suspend_all+0x1a8/0x270[ 52.047824] snd_soc_suspend+0x19c/0x4e0The snd_pcm_sync_stop() has a NULL check on substream->runtime beforemaking any access. So we need to always set substream->runtime to NULLeverytime we kfree() it.
| NVD | openEuler | |
|---|---|---|
| Confidentiality | High | High |
| Attack Vector | Local | Local |
| CVSS评分 | 7.8 | 7.8 |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| Scope | Unchanged | Unchanged |
| Integrity | High | High |
| User Interaction | None | None |
| Availability | High | High |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-3910 | In the Linux kernel, the following vulnerability has been resolved:ASoC: dapm: Fix UAF for snd_soc_pcm_runtime objectWhen using kernel with the following extra config, - CONFIG_KASAN=y - CONFIG_KASAN_GENERIC=y - CONFIG_KASAN_INLINE=y - CONFIG_KASAN_VMALLOC=y - CONFIG_FRAME_WARN=4096kernel detects that snd_pcm_suspend_all() access a freed snd_soc_pcm_runtime object when the system is suspended, whichleads to a use-after-free bug:[ 52.047746] BUG: KASAN: use-after-free in snd_pcm_suspend_all+0x1a8/0x270[ 52.047765] Read of size 1 at addr ffff0000b9434d50 by task systemd-sleep/2330[ 52.047785] Call trace:[ 52.047787] dump_backtrace+0x0/0x3c0[ 52.047794] show_stack+0x34/0x50[ 52.047797] dump_stack_lvl+0x68/0x8c[ 52.047802] print_address_description.constprop.0+0x74/0x2c0[ 52.047809] kasan_report+0x210/0x230[ 52.047815] __asan_report_load1_noabort+0x3c/0x50[ 52.047820] snd_pcm_suspend_all+0x1a8/0x270[ 52.047824] snd_soc_suspend+0x19c/0x4e0The snd_pcm_sync_stop() has a NULL check on substream->runtime beforemaking any access. So we need to always set substream->runtime to NULLeverytime we kfree() it. | 2024年10月12日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.5.2 | kernel | Fixed |
| V6 | kernel | Fixed |
| KY3.5.3 | kernel | Fixed |
