CVE-2026-74457

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().

CVSS

No CVSS.

References

Link	Resource
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

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 13:17

Updated : 2026-08-19 17:21

NVD link : CVE-2026-74457

Mitre link : CVE-2026-74457

CVE.ORG link : CVE-2026-74457

JSON object : View

Products Affected

No product.

CWE

No CWE.

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