Answer in brief
CVE-2026-74457 records a Unknown severity vulnerability in can: peak_usb: add bounds check for USB channel index. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f || >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <f97b7e5e1cdaae15cd95b3a360028c7929664969 || >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <1acab790b7cecd4e144d1d18bdfe549e282f6b0b || >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <0149fdb50a30944827acf9600a2cc44de0325a7f || >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <39132f166ca8ce00ae60d8a9068e06a60943cc4b | 825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f, f97b7e5e1cdaae15cd95b3a360028c7929664969, 1acab790b7cecd4e144d1d18bdfe549e282f6b0b, 0149fdb50a30944827acf9600a2cc44de0325a7f, 39132f166ca8ce00ae60d8a9068e06a60943cc4b |
| Linux/Linuxgeneric | 3.4 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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().
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74457 records a Unknown severity vulnerability in can: peak_usb: add bounds check for USB channel index. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f || >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <f97b7e5e1cdaae15cd95b3a360028c7929664969 || >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <1acab790b7cecd4e144d1d18bdfe549e282f6b0b || >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <0149fdb50a30944827acf9600a2cc44de0325a7f || >=d8a199355f8f8a0797c00d98788d7282c9ea38bd <39132f166ca8ce00ae60d8a9068e06a60943cc4b | 825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f, f97b7e5e1cdaae15cd95b3a360028c7929664969, 1acab790b7cecd4e144d1d18bdfe549e282f6b0b, 0149fdb50a30944827acf9600a2cc44de0325a7f, 39132f166ca8ce00ae60d8a9068e06a60943cc4b |
| Linux/Linuxgeneric | 3.4 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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().
Quoted source text, attributed separately from HOL analysis.