# CVE-2023-52748: linux: In the Linux kernel, the following vulnerability has been resolved:  f2fs: avoid format-overflow warning  With gcc an...

CVE-2023-52748 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52748, released May 21, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-52748
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0025
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 21, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  f2fs: avoid format-overflow warning  With gcc and W=1 option, there's a warning like this:  fs/f2fs/compress.c: In function ‘f2fs_init_page_array_cache’: fs/f2fs/compress.c:1984:47: error: ‘%u’ directive writing between 1 and 7 bytes into a region of size between 5 and 8 [-Werror=format-overflow=]  1984 |  sprintf(slab_name, "f2fs_page_array_entry-%u:%u", MAJOR(dev), 		MINOR(dev));       |                                               ^~  String "f2fs_page_array_entry-%u:%u" can up to 35. The first "%u" can up to 4 and the second "%u" can up to 7, so total size is "24 + 4 + 7 = 35". slab_name's size should be 35 rather than 32.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.64-1 | [DEBIAN-CVE-2023-52748](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52748.md) | May 21, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.6.8-1 | [DEBIAN-CVE-2023-52748](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52748.md) | May 21, 2024 |
| Linux | linux Debian 14 | 6.6.8-1 | [DEBIAN-CVE-2023-52748](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52748.md) | May 21, 2024 |

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