CVE-2024-50292

ASoC: stm32: spdifrx: fix dma channel release in stm32_spdifrx_remove

MEDIUM

5.5

CVSS Score

Published: November 19, 2024 at 01:30 AM UTC

Updated: June 17, 2026 at 08:04 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.11 ≤ v < 5.15.1725.16 ≤ v < 6.1.1175.7 ≤ v < 5.10.2305.7 ≤ v < 5.15.1725.7 ≤ v < 6.1.1175.7 ≤ v < 6.11.85.7 ≤ v < 6.125.7 ≤ v < 6.6.616.2 ≤ v < 6.6.616.7 ≤ v < 6.11.86.12 rc1 6.12 rc2 6.12 rc3 6.12 rc4 6.12 rc5 6.12 rc6794df9448edb55978e50372f083aeedade1b2844

Vendor states this is fixed in 0d75f887aabd80cf37ea48d28f159afa7850ea28 (fixed)

Vendor states this is fixed in 22ae9321054cf7f36c537702af133659f51a0b88 (fixed)

Vendor states this is fixed in 23bdbd1ef3e063e03d3c50c15a591b005ebbae39 (fixed)

Vendor states this is fixed in 3a977b554f668382dfba31fd62e4cce4fe5643db (fixed)

Vendor states this is fixed in 4f1d74f74752eab8af6b8b28797dc6490d57374c (fixed)

Vendor states this is fixed in 9bb4af400c386374ab1047df44c508512c08c31f (fixed)

Vendor states this is fixed in 5.10.230 (unaffected)

Vendor states this is fixed in 5.15.172 (unaffected)

Vendor states this is fixed in 5.7 (unaffected)

Vendor states this is fixed in 6.1.117 (unaffected)

Vendor states this is fixed in 6.11.8 (unaffected)

Vendor states this is fixed in 6.12 (unaffected)