CVE-2026-53291 is a vulnerability in Linux Kernel
Published on June 26, 2026
ALSA: hda/conexant: Fix missing error check for jack detection
In the Linux kernel, the following vulnerability has been resolved:
ALSA: hda/conexant: Fix missing error check for jack detection
In cx_probe(), the return value of snd_hda_jack_detect_enable_callback()
is ignored. This function returns a pointer, and if it fails (e.g., due
to memory allocation failure), it returns an error pointer which must
be checked using IS_ERR().
If the registration fails, the driver continues to probe, but the jack
detection callback will not be registered. This can lead to a kernel
crash later when the driver attempts to handle jack events or accesses
the uninitialized structure.
Check the return value using IS_ERR() and propagate the error via
PTR_ERR() to the probe caller.
Products Associated with CVE-2026-53291
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Affected Versions
Linux:- Version f13b8cb5a6920ad98b751d3134686f29810577d4 and below 49c2c5924552e1d2f8b635dee663abebbb7cf63b is affected.
- Version 2cb659ef0ac744545499e7c37665b276d9e405da and below a2a33e87a2ffce3046c574d24eec4390c27c9365 is affected.
- Version 24d748413cc4e1d97074bae1f335d32d30912f10 and below d68f753d89f4ef6e410d7e8b7e8ab2fdde921b80 is affected.
- Version 7aeb259086487417f0fecf66e325bee133e8813a and below dd110cc00cf854a8ecd8d003127a4178c28574ea is affected.
- Version 7aeb259086487417f0fecf66e325bee133e8813a and below f837c7b85143a7c54140ff41ad5c076b73cd9933 is affected.
- Version 7aeb259086487417f0fecf66e325bee133e8813a and below 1da5c73f3793b224696617a2a21def7500ba18d6 is affected.
- Version 7aeb259086487417f0fecf66e325bee133e8813a and below b0e2333a231107adedd38c6fcfe1adc6162716fc is affected.
- Version 4a28302b2c681e3cf85e3b41231fff363c4c6a0e is affected.
- Version 5.15.149 and below 5.15.209 is affected.
- Version 6.1.77 and below 6.1.175 is affected.
- Version 6.6.16 and below 6.6.141 is affected.
- Version 6.7.4 and below 6.8 is affected.
- Version 6.8 is affected.
- Before 6.8 is unaffected.
- Version 5.15.209, <= 5.15.* is unaffected.
- Version 6.1.175, <= 6.1.* is unaffected.
- Version 6.6.141, <= 6.6.* is unaffected.
- Version 6.12.91, <= 6.12.* is unaffected.
- Version 6.18.33, <= 6.18.* is unaffected.
- Version 7.0.10, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.