Answer in brief
CVE-2026-64565 records a Unknown severity vulnerability in Input: ims-pcu - fix heap-buffer-overflow in ims_pcu_process_data(). 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 | >=628329d52474323938a03826941e166bc7c8eff4 <06cfff93fd40441292567b999091beab11c74504 || >=628329d52474323938a03826941e166bc7c8eff4 <992a7173364dcf63e30012af43da3c2f279839f9 || >=628329d52474323938a03826941e166bc7c8eff4 <3a801bc75ba1d121d0ed60e7234f93ba5651d87d || >=628329d52474323938a03826941e166bc7c8eff4 <40bbbf2e91fd60715525bf0405c67876af817edf || >=628329d52474323938a03826941e166bc7c8eff4 <ca9f8c09845fb8c51b6d447f6428eecd1b8b0a49 || >=628329d52474323938a03826941e166bc7c8eff4 <d03a740e087de7dcb2a26dc1123377bd3d1d84ca || >=628329d52474323938a03826941e166bc7c8eff4 <875115b82c295277b81b6dfee7debc725f44e854 | 06cfff93fd40441292567b999091beab11c74504, 992a7173364dcf63e30012af43da3c2f279839f9, 3a801bc75ba1d121d0ed60e7234f93ba5651d87d, 40bbbf2e91fd60715525bf0405c67876af817edf, ca9f8c09845fb8c51b6d447f6428eecd1b8b0a49, d03a740e087de7dcb2a26dc1123377bd3d1d84ca, 875115b82c295277b81b6dfee7debc725f44e854 |
| Linux/Linuxgeneric | 3.10 | Not reported |
Published upstream
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix heap-buffer-overflow in ims_pcu_process_data() The `ims_pcu_process_data()` processes incoming URB data byte by byte. However, it fails to check if the `read_pos` index exceeds IMS_PCU_BUF_SIZE. If a malicious USB device sends a packet larger than IMS_PCU_BUF_SIZE, `read_pos` will increment indefinitely. Moreover, since `read_pos` is located immediately after `read_buf`, the attacker can overwrite `read_pos` itself to arbitrarily control the index. This manipulated `read_pos` is subsequently used in `ims_pcu_handle_response()` to copy data into `cmd_buf`, leading to a heap buffer overflow. Specifically, an attacker can overwrite the `cmd_done.wait.head` located at offset 136 relative to `cmd_buf` in the `ims_pcu_handle_response()`. Consequently, when the driver calls `complete(&pcu->cmd_done)`, it triggers a control flow hijack by using the manipulated pointer. Fix this by adding a bounds check for `read_pos` before writing to `read_buf`. If the packet is too long, discard it, log a warning, and reset the parser state. [dtor: factor out resetting packet state, reset checksum as well]
Quoted source text, attributed separately from HOL analysis.