Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: caiaq: validate EP1 reply lengths usb_ep1_command_reply_dispatch() uses buf[0] as a command byte and then reads command-specific fixed items from the same URB buffer. Several paths use buf + 1, buf[1], buf[2], or buf + 3 without first proving that urb->actual_length contains those bytes. Add per-command length checks, use a payload length derived from the bytes after the command byte for the control-state copy, and reject short analog input payloads before the input helper reads fixed offsets from the EP1 reply.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 523f1dce37434a9a6623bf46e7893e2b4b10ac3c before 91acd231f219452fa58285239f83945accad9513; affected 523f1dce37434a9a6623bf46e7893e2b4b10ac3c before 7cc6b3745a0cea697c8d0684b3094f220281a08d; affected 523f1dce37434a9a6623bf46e7893e2b4b10ac3c before add9328c91c195c494cd68a21b19e5e47a20d784; affected 523f1dce37434a9a6623bf46e7893e2b4b10ac3c before 319393151367e6626affedcdd4f7b7b0286f4246; affected 523f1dce37434a9a6623bf46e7893e2b4b10ac3c before af8a172c4f71ac30d625f2966d2389a7fa872819; affected 523f1dce37434a9a6623bf46e7893e2b4b10ac3c before 74f3c639f64fa5da4e1613149798b5089bce2807; affected 523f1dce37434a9a6623bf46e7893e2b4b10ac3c before aba30af07d4fe499b50209801eba9da8a815522f |
| Linux / Linux | affected 2.6.22; unaffected 0 before 2.6.22; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.111 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/91acd231f219452fa58285239f83945accad9513
- https://git.kernel.org/stable/c/7cc6b3745a0cea697c8d0684b3094f220281a08d
- https://git.kernel.org/stable/c/add9328c91c195c494cd68a21b19e5e47a20d784
- https://git.kernel.org/stable/c/319393151367e6626affedcdd4f7b7b0286f4246
- https://git.kernel.org/stable/c/af8a172c4f71ac30d625f2966d2389a7fa872819
- https://git.kernel.org/stable/c/74f3c639f64fa5da4e1613149798b5089bce2807
- https://git.kernel.org/stable/c/aba30af07d4fe499b50209801eba9da8a815522f