Answer in brief
CVE-2025-37813 records a Unknown severity vulnerability in usb: xhci: Fix invalid pointer dereference in Etron workaround. 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 | >=fbc0a0c7718a6cb1dc5e0811a4f88a2b1deedfa1 <142273a49f2c315eabdbdf5a71c15e479b75ca91 || >=9258c9ed32294ce3a4b58c9d92fc49ba030d35c9 <bce3055b08e303e28a8751f6073066f5c33a0744 || >=5e1c67abc9301d05130b7e267c204e7005503b33 <0624e29c595b05e7a0e6d1c368f0a05799928e30 || >=5e1c67abc9301d05130b7e267c204e7005503b33 <1ea050da5562af9b930d17cbbe9632d30f5df43a || 4725344ca645a98a9d8e45e25b01a2244de5b8aa || >=6.6.66 <6.6.89 || >=6.12.2 <6.12.26 || >=6.11.11 <6.12 | 142273a49f2c315eabdbdf5a71c15e479b75ca91, bce3055b08e303e28a8751f6073066f5c33a0744, 0624e29c595b05e7a0e6d1c368f0a05799928e30, 1ea050da5562af9b930d17cbbe9632d30f5df43a, 6.6.89, 6.12.26, 6.12 |
| Linux/Linuxgeneric | 6.13 | Not reported |
Published upstream
May 8, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Fix invalid pointer dereference in Etron workaround This check is performed before prepare_transfer() and prepare_ring(), so enqueue can already point at the final link TRB of a segment. And indeed it will, some 0.4% of times this code is called. Then enqueue + 1 is an invalid pointer. It will crash the kernel right away or load some junk which may look like a link TRB and cause the real link TRB to be replaced with a NOOP. This wouldn't end well. Use a functionally equivalent test which doesn't dereference the pointer and always gives correct result. Something has crashed my machine twice in recent days while playing with an Etron HC, and a control transfer stress test ran for confirmation has just crashed it again. The same test passes with this patch applied.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-37813 records a Unknown severity vulnerability in usb: xhci: Fix invalid pointer dereference in Etron workaround. 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 | >=fbc0a0c7718a6cb1dc5e0811a4f88a2b1deedfa1 <142273a49f2c315eabdbdf5a71c15e479b75ca91 || >=9258c9ed32294ce3a4b58c9d92fc49ba030d35c9 <bce3055b08e303e28a8751f6073066f5c33a0744 || >=5e1c67abc9301d05130b7e267c204e7005503b33 <0624e29c595b05e7a0e6d1c368f0a05799928e30 || >=5e1c67abc9301d05130b7e267c204e7005503b33 <1ea050da5562af9b930d17cbbe9632d30f5df43a || 4725344ca645a98a9d8e45e25b01a2244de5b8aa || >=6.6.66 <6.6.89 || >=6.12.2 <6.12.26 || >=6.11.11 <6.12 | 142273a49f2c315eabdbdf5a71c15e479b75ca91, bce3055b08e303e28a8751f6073066f5c33a0744, 0624e29c595b05e7a0e6d1c368f0a05799928e30, 1ea050da5562af9b930d17cbbe9632d30f5df43a, 6.6.89, 6.12.26, 6.12 |
| Linux/Linuxgeneric | 6.13 | Not reported |
Published upstream
May 8, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Fix invalid pointer dereference in Etron workaround This check is performed before prepare_transfer() and prepare_ring(), so enqueue can already point at the final link TRB of a segment. And indeed it will, some 0.4% of times this code is called. Then enqueue + 1 is an invalid pointer. It will crash the kernel right away or load some junk which may look like a link TRB and cause the real link TRB to be replaced with a NOOP. This wouldn't end well. Use a functionally equivalent test which doesn't dereference the pointer and always gives correct result. Something has crashed my machine twice in recent days while playing with an Etron HC, and a control transfer stress test ran for confirmation has just crashed it again. The same test passes with this patch applied.
Quoted source text, attributed separately from HOL analysis.