CVE-2026-74457
can: peak_usb: add bounds check for USB channel index
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
d8a199355f8f8a0797c00d98788d7282c9ea38bd < 825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f d8a199355f8f8a0797c00d98788d7282c9ea38bd < f97b7e5e1cdaae15cd95b3a360028c7929664969 d8a199355f8f8a0797c00d98788d7282c9ea38bd < 1acab790b7cecd4e144d1d18bdfe549e282f6b0b d8a199355f8f8a0797c00d98788d7282c9ea38bd < 0149fdb50a30944827acf9600a2cc44de0325a7f d8a199355f8f8a0797c00d98788d7282c9ea38bd < 39132f166ca8ce00ae60d8a9068e06a60943cc4b
Linux / Linux
3.4
References
git.kernel.org: https://git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f git.kernel.org: https://git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969 git.kernel.org: https://git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b git.kernel.org: https://git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f git.kernel.org: https://git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b