CVE-2024-46798
ASoC: dapm: Fix UAF for snd_soc_pcm_runtime object
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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 Scores
SSVC
- Decision:-
Timeline
- 2024-09-11 CVE Reserved
- 2024-09-18 CVE Published
- 2024-09-18 CVE Updated
- ---------- EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/a72706ed8208ac3f72d1c3ebbc6509e368b0dcb0 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 5.4.284 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 5.4.284" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 5.10.226 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 5.10.226" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 5.15.167 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 5.15.167" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 6.1.110 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 6.1.110" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 6.6.51 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 6.6.51" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 6.10.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 6.10.10" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.4 < 6.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.4 < 6.11" | en |
Affected
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