# CVE-2022-49551: linux: In the Linux kernel, the following vulnerability has been resolved:  usb: isp1760: Fix out-of-bounds array access  Ru...

CVE-2022-49551 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49551, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-49551
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  usb: isp1760: Fix out-of-bounds array access  Running the driver through kasan gives an interesting splat:    BUG: KASAN: global-out-of-bounds in isp1760_register+0x180/0x70c   Read of size 20 at addr f1db2e64 by task swapper/0/1   (...)   isp1760_register from isp1760_plat_probe+0x1d8/0x220   (...)  This happens because the loop reading the regmap fields for the different ISP1760 variants look like this:    for (i = 0; i < HC_FIELD_MAX; i++) { ... }  Meaning it expects the arrays to be at least HC_FIELD_MAX - 1 long.  However the arrays isp1760_hc_reg_fields[], isp1763_hc_reg_fields[], isp1763_hc_volatile_ranges[] and isp1763_dc_volatile_ranges[] are dynamically sized during compilation.  Fix this by putting an empty assignment to the [HC_FIELD_MAX] and [DC_FIELD_MAX] array member at the end of each array. This will make the array one member longer than it needs to be, but avoids the risk of overwriting whatever is inside [HC_FIELD_MAX - 1] and is simple and intuitive to read. Also add comments explaining what is going on.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.18.5-1 | [DEBIAN-CVE-2022-49551](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49551.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.18.5-1 | [DEBIAN-CVE-2022-49551](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49551.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.18.5-1 | [DEBIAN-CVE-2022-49551](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49551.md) | Feb 26, 2025 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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