CVE-2026-64482 PUBLISHED

ALSA: gus: check snd_ctl_new1() return value

Assigner: Linux
Reserved: 19.07.2026 Published: 25.07.2026 Updated: 25.07.2026

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

ALSA: gus: check snd_ctl_new1() return value

snd_ctl_new1() can return NULL when memory allocation fails. snd_gf1_pcm_volume_control() does not check the return value before dereferencing kctl->id.index, which can lead to a NULL pointer dereference.

Add a NULL check after snd_ctl_new1() and return -ENOMEM if it fails.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from c35034fd6446afaf408d5ab296068e32c775c965 to 97f6bdf5d5ded2e37f358cacb5a95f1393356604 (excl.)
  • affected from c5ae57b1bb99bd6f50b90428fabde397c2aeba0f to eccf8e91266e39f6f15637702a04a1d344833fe2 (excl.)
  • affected from c5ae57b1bb99bd6f50b90428fabde397c2aeba0f to fc5d4f27ca1293bc1379ef8fff691c30d9803ca2 (excl.)
  • affected from c5ae57b1bb99bd6f50b90428fabde397c2aeba0f to 5e74e5e8cb7cc25f7a89f59abaf3489bf0c6f4a0 (excl.)
  • affected from c5ae57b1bb99bd6f50b90428fabde397c2aeba0f to 465075c6835103821d725c13f8c545898e5f2636 (excl.)
  • affected from c5ae57b1bb99bd6f50b90428fabde397c2aeba0f to c7fa99d30c7a166a5e5db5a585ce7501ff68326b (excl.)
  • Version a1374d2683442633f8ad2169f8f31df45048e008 is affected
  • affected from 6.1.34 to 6.1.178 (excl.)
  • affected from 6.3.8 to 6.4 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.4 is affected
  • unaffected from 0 to 6.4 (excl.)
  • unaffected from 6.1.178 to 6.1.* (incl.)
  • unaffected from 6.6.145 to 6.6.* (incl.)
  • unaffected from 6.12.96 to 6.12.* (incl.)
  • unaffected from 6.18.39 to 6.18.* (incl.)
  • unaffected from 7.1.4 to 7.1.* (incl.)
  • unaffected from 7.2-rc1 to * (incl.)

References