CVE-2024-46798

HIGH EPSS 11.8%
Published Sep 18, 20241y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Sep 18, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object When 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=4096 kernel detects that snd_pcm_suspend_all() access a freed 'snd_soc_pcm_runtime' object when the system is suspended, which leads 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/0x4e0 The snd_pcm_sync_stop() has a NULL check on 'substream->runtime' before making any access. So we need to always set 'substream->runtime' to NULL everytime we kfree() it.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
11.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥5.4  –  <5.4.284
linuxlinux_kernel*≥5.5  –  <5.10.226
linuxlinux_kernel*≥5.11  –  <5.15.167
linuxlinux_kernel*≥5.16  –  <6.1.110
linuxlinux_kernel*≥6.2  –  <6.6.51
linuxlinux_kernel*≥6.7  –  <6.10.10
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any

References 9

  • git.kernel.org https://git.kernel.org/stable/c/3033ed903b4f28b5e1ab66042084fbc2c48f8624
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d13afd021eb43868fe03cef6da34ad08831ad6d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a14fad8be178df6c4589667efec1789a3307b4e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8ca21e7a27c66b95a4b215edc8e45e5d66679f9f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/993b60c7f93fa1d8ff296b58f646a867e945ae89
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b4a90b543d9f62d3ac34ec1ab97fc5334b048565
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fe5046ca91d631ec432eee3bdb1f1c49b09c8b5e
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/3033ed903b4f28b5e1ab66042084fbc2c48f8624
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d13afd021eb43868fe03cef6da34ad08831ad6d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6a14fad8be178df6c4589667efec1789a3307b4e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8ca21e7a27c66b95a4b215edc8e45e5d66679f9f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/993b60c7f93fa1d8ff296b58f646a867e945ae89
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b4a90b543d9f62d3ac34ec1ab97fc5334b048565
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fe5046ca91d631ec432eee3bdb1f1c49b09c8b5e
    Patch