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CVE-2025-38105

ALSA: usb-audio: Kill timer properly at removal PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Kill timer properly at removal The USB-audio MIDI code initializes the timer, but in a rare case, the driver might be freed without the disconnect call. This leaves the timer in an active state while the assigned object is released via snd_usbmidi_free(), which ends up with a kernel warning when the debug configuration is enabled, as spotted by fuzzer. For avoiding the problem, put timer_shutdown_sync() at snd_usbmidi_free(), so that the timer can be killed properly. While we're at it, replace the existing timer_delete_sync() at the disconnect callback with timer_shutdown_sync(), too.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected c88469704d63787e8d44ca5ea1c1bd0adc29572d before 06513dd6d32c37d0364db8488cfdf3e14da238a8; affected c88469704d63787e8d44ca5ea1c1bd0adc29572d before efaf61052b8ff9ee8968912fbaf02c2847c78ede; affected c88469704d63787e8d44ca5ea1c1bd0adc29572d before 647410a7da46067953a53c0d03f8680eff570959; affected c88469704d63787e8d44ca5ea1c1bd0adc29572d before c611b9e55174e439dcd85a72969b43a95f3827a4; affected c88469704d63787e8d44ca5ea1c1bd0adc29572d before 62066758d2ae169278e5d6aea5995b1b6f6ddeb5; affected c88469704d63787e8d44ca5ea1c1bd0adc29572d before 0718a78f6a9f04b88d0dc9616cc216b31c5f3cf1
Linux / Linuxaffected 2.6.14; unaffected 0 before 2.6.14; unaffected 5.15.209 through 5.15.*; unaffected 6.1.167 through 6.1.*; unaffected 6.6.111 through 6.6.*; unaffected 6.12.52 through 6.12.*; unaffected 6.15.3 through 6.15.*; unaffected 6.16 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.