CVE-2026-90214

Summary

In the Linux kernel, the following vulnerability has been resolved:

ASoC: xilinx: formatter_pcm: fix stream_data leak on open error

In xlnx_formatter_pcm_open(), stream_data is allocated and adata->play_stream or adata->capture_stream is assigned early. If a later step, such as snd_pcm_hw_constraint_step() or snd_pcm_hw_constraint_integer(), fails, the function returns the error immediately. ALSA does not call the close callback when open fails, so stream_data is leaked and the stream pointer is left dangling, pointing to a substream that ALSA frees. A later interrupt would then call snd_pcm_period_elapsed() on the freed substream.

Free stream_data and clear the stream pointer on the error paths.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux6f6c3c36f0917be24587eeba818ab4fdfcb5465a < 5e1a2d9fff57f3a2b1a0f54d128d64245a253004affected
LinuxLinux6f6c3c36f0917be24587eeba818ab4fdfcb5465a < edf81b293cba1b00a5e71becf184414f6991a6caaffected
LinuxLinux6f6c3c36f0917be24587eeba818ab4fdfcb5465a < 3fd89a51b8cfe788df67f54b716b305dd45b8468affected
LinuxLinux6f6c3c36f0917be24587eeba818ab4fdfcb5465a < 8c38ae4a465691947977c25d10394da22a64a19faffected
LinuxLinux6f6c3c36f0917be24587eeba818ab4fdfcb5465a < 9030aa4e14b704dc39ee208207cb65064020d857affected
LinuxLinux6f6c3c36f0917be24587eeba818ab4fdfcb5465a < 8b30628dfc2b2fad3b55a9441776a226035045faaffected
LinuxLinux6f6c3c36f0917be24587eeba818ab4fdfcb5465a < 4e0ce77df7d9808926719d7950a07fbad14ea9efaffected
LinuxLinux6f6c3c36f0917be24587eeba818ab4fdfcb5465a < b992511180e126150c6ad3580a6fd568c385f4c6affected
LinuxLinux5.1affected
LinuxLinux0 < 5.1unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References