can: peak_usb: add bounds check for USB channel index

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74457
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 13:17:50 UTC
Updated2026-08-15 13:17:50 UTC
DescriptionIn 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 Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d8a199355f8f8a0797c00d98788d7282c9ea38bd 825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f git Not specified
CNA Linux Linux affected d8a199355f8f8a0797c00d98788d7282c9ea38bd f97b7e5e1cdaae15cd95b3a360028c7929664969 git Not specified
CNA Linux Linux affected d8a199355f8f8a0797c00d98788d7282c9ea38bd 1acab790b7cecd4e144d1d18bdfe549e282f6b0b git Not specified
CNA Linux Linux affected d8a199355f8f8a0797c00d98788d7282c9ea38bd 0149fdb50a30944827acf9600a2cc44de0325a7f git Not specified
CNA Linux Linux affected d8a199355f8f8a0797c00d98788d7282c9ea38bd 39132f166ca8ce00ae60d8a9068e06a60943cc4b git Not specified
CNA Linux Linux affected 3.4 Not specified
CNA Linux Linux unaffected 3.4 semver Not specified
CNA Linux Linux unaffected 6.6.151 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.103 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.44 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.8 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc6 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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