Description
In the Linux kernel, the following vulnerability has been resolved:
can: peak_usb: add bounds check for USB channel index
The channel control index ctrl_idx is derived from rx->len which comes directly from a device USB payload. The mask 0x0f allows values 0-15, but the array size of usb_if->dev[] is only 2. Values 2-15 cause heap out-of-bounds read, eventually causing kernel panic in the IRQ context.
Add bounds checking for ctrl_idx before the array access in both pcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error().
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= d8a199355f8f8a0797c00d98788d7282c9ea38bd, < 18b1a868a2cda66fb438007ba47ce5f2484db381; >= d8a199355f8f8a0797c00d98788d7282c9ea38bd, < 0c9268457bd6e4058fe55b4db01b16661c2eacf5; >= d8a199355f8f8a0797c00d98788d7282c9ea38bd, < 94fb6fe83ce152532b11b36730b30f3dc0c94217; >= d8a199355f8f8a0797c00d98788d7282c9ea38bd, < 825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f; >= d8a199355f8f8a0797c00d98788d7282c9ea38bd, < f97b7e5e1cdaae15cd95b3a360028c7929664969; >= d8a199355f8f8a0797c00d98788d7282c9ea38bd, < 1acab790b7cecd4e144d1d18bdfe549e282f6b0b; >= d8a199355f8f8a0797c00d98788d7282c9ea38bd, < 0149fdb50a30944827acf9600a2cc44de0325a7f; >= d8a199355f8f8a0797c00d98788d7282c9ea38bd, < 39132f166ca8ce00ae60d8a9068e06a60943cc4b |
| Linux | Linux | 3.4 |
References
- https://git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f
- https://git.kernel.org/stable/c/0c9268457bd6e4058fe55b4db01b16661c2eacf5
- https://git.kernel.org/stable/c/18b1a868a2cda66fb438007ba47ce5f2484db381
- https://git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b
- https://git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b
- https://git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f
- https://git.kernel.org/stable/c/94fb6fe83ce152532b11b36730b30f3dc0c94217
- https://git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969
Timeline
- Published
- Aug 15, 2026
- Last modified
- Nov 6, 2026
- NVD status
- Received