CVE-2024-50292: ASoC: stm32: spdifrx: fix dma channel release in stm32_spdifrx_remove
First published: Tue Nov 19 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ASoC: stm32: spdifrx: fix dma channel release in stm32_spdifrx_remove In case of error when requesting ctrl_chan DMA channel, ctrl_chan is not null. So the release of the dma channel leads to the following issue: [ 4.879000] st,stm32-spdifrx 500d0000.audio-controller: dma_request_slave_channel error -19 [ 4.888975] Unable to handle kernel NULL pointer dereference at virtual address 000000000000003d [...] [ 5.096577] Call trace: [ 5.099099] dma_release_channel+0x24/0x100 [ 5.103235] stm32_spdifrx_remove+0x24/0x60 [snd_soc_stm32_spdifrx] [ 5.109494] stm32_spdifrx_probe+0x320/0x4c4 [snd_soc_stm32_spdifrx] To avoid this issue, release channel only if the pointer is valid.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.7<5.10.230 | |
| Linux Kernel | >=5.11<5.15.172 | |
| Linux Kernel | >=5.16<6.1.117 | |
| Linux Kernel | >=6.2<6.6.61 | |
| Linux Kernel | >=6.7<6.11.8 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 | |
| Linux Kernel | =6.12-rc4 | |
| Linux Kernel | =6.12-rc5 | |
| Linux Kernel | =6.12-rc6 | |
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
| debian/linux-6.1 | 6.1.119-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/3a977b554f668382dfba31fd62e4cce4fe5643db
- https://git.kernel.org/stable/c/0d75f887aabd80cf37ea48d28f159afa7850ea28
- https://git.kernel.org/stable/c/4f1d74f74752eab8af6b8b28797dc6490d57374c
- https://git.kernel.org/stable/c/23bdbd1ef3e063e03d3c50c15a591b005ebbae39
- https://git.kernel.org/stable/c/22ae9321054cf7f36c537702af133659f51a0b88
- https://git.kernel.org/stable/c/9bb4af400c386374ab1047df44c508512c08c31f
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50292
- https://nvd.nist.gov/vuln/detail/CVE-2024-50292
- https://launchpad.net/bugs/cve/CVE-2024-50292
- https://security-tracker.debian.org/tracker/CVE-2024-50292
- https://ubuntu.com/security/CVE-2024-50292
- https://git.kernel.org/linus/9bb4af400c386374ab1047df44c508512c08c31f
Frequently Asked Questions
What is the severity of CVE-2024-50292?
CVE-2024-50292 is considered a medium severity vulnerability due to the potential for resource management issues.
How do I fix CVE-2024-50292?
To fix CVE-2024-50292, update your Linux kernel to the latest patched version that resolves this issue.
Which versions of the Linux kernel are affected by CVE-2024-50292?
CVE-2024-50292 affects Linux kernel versions between 5.7 to 6.12-rc6.
What action should I take if I am using an affected Linux kernel for CVE-2024-50292?
If using an affected Linux kernel, it is recommended to update to a version that has mitigations for CVE-2024-50292.
Is CVE-2024-50292 a remote vulnerability?
CVE-2024-50292 is not specifically a remote vulnerability as it involves local resource management in the Linux kernel.
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