Answer in brief
CVE-2023-53524 records a High severity (CVSS 7.8) vulnerability in wifi: iwlwifi: pcie: Fix integer overflow in iwl_write_to_user_buf. 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.
CVSS is 7.8. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 <0ad8dd870aa187d0c21d032bb2c6433559075eec || >=f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 <059e426d666a41e26b184c177c1ca3ee2d6fa1b6 || >=f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 <82f877ec9b041edc4c7c509c605cc3393d837bf0 || >=f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 <eb1ef44efac797b384d361a76e33f77027c29a14 || >=f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 <de78456976026102babe66258c228691ca5677c0 || >=f7805b33f9b13a87b1fcf9dfbc3dcbce281a1436 <58d1b717879bfeabe09b35e41ad667c79933eb2e | 0ad8dd870aa187d0c21d032bb2c6433559075eec, 059e426d666a41e26b184c177c1ca3ee2d6fa1b6, 82f877ec9b041edc4c7c509c605cc3393d837bf0, eb1ef44efac797b384d361a76e33f77027c29a14, de78456976026102babe66258c228691ca5677c0, 58d1b717879bfeabe09b35e41ad667c79933eb2e |
| Linux/Linuxgeneric | 5.0 | Not reported |
Published upstream
Oct 1, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: pcie: Fix integer overflow in iwl_write_to_user_buf An integer overflow occurs in the iwl_write_to_user_buf() function, which is called by the iwl_dbgfs_monitor_data_read() function. static bool iwl_write_to_user_buf(char __user *user_buf, ssize_t count, void *buf, ssize_t *size, ssize_t *bytes_copied) { int buf_size_left = count - *bytes_copied; buf_size_left = buf_size_left - (buf_size_left % sizeof(u32)); if (*size > buf_size_left) *size = buf_size_left; If the user passes a SIZE_MAX value to the "ssize_t count" parameter, the ssize_t count parameter is assigned to "int buf_size_left". Then compare "*size" with "buf_size_left" . Here, "buf_size_left" is a negative number, so "*size" is assigned "buf_size_left" and goes into the third argument of the copy_to_user function, causing a heap overflow. This is not a security vulnerability because iwl_dbgfs_monitor_data_read() is a debugfs operation with 0400 privileges.
Quoted source text, attributed separately from HOL analysis.