# CVE-2023-54182: linux: In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to check readonly condition correctly...

CVE-2023-54182 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-54182, released December 30, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-54182
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0015
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 30, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  f2fs: fix to check readonly condition correctly  With below case, it can mount multi-device image w/ rw option, however one of secondary device is set as ro, later update will cause panic, so let's introduce f2fs_dev_is_readonly(), and check multi-devices rw status in f2fs_remount() w/ it in order to avoid such inconsistent mount status.  mkfs.f2fs -c /dev/zram1 /dev/zram0 -f blockdev --setro /dev/zram1 mount -t f2fs dev/zram0 /mnt/f2fs mount: /mnt/f2fs: WARNING: source write-protected, mounted read-only. mount -t f2fs -o remount,rw mnt/f2fs dd if=/dev/zero  of=/mnt/f2fs/file bs=1M count=8192  kernel BUG at fs/f2fs/inline.c:258! RIP: 0010:f2fs_write_inline_data+0x23e/0x2d0 [f2fs] Call Trace:   f2fs_write_single_data_page+0x26b/0x9f0 [f2fs]   f2fs_write_cache_pages+0x389/0xa60 [f2fs]   __f2fs_write_data_pages+0x26b/0x2d0 [f2fs]   f2fs_write_data_pages+0x2e/0x40 [f2fs]   do_writepages+0xd3/0x1b0   __writeback_single_inode+0x5b/0x420   writeback_sb_inodes+0x236/0x5a0   __writeback_inodes_wb+0x56/0xf0   wb_writeback+0x2a3/0x490   wb_do_writeback+0x2b2/0x330   wb_workfn+0x6a/0x260   process_one_work+0x270/0x5e0   worker_thread+0x52/0x3e0   kthread+0xf4/0x120   ret_from_fork+0x29/0x50

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.37-1 | [DEBIAN-CVE-2023-54182](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54182.md) | Dec 30, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.3.7-1 | [DEBIAN-CVE-2023-54182](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54182.md) | Dec 30, 2025 |
| Linux | linux Debian 14 | 6.3.7-1 | [DEBIAN-CVE-2023-54182](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54182.md) | Dec 30, 2025 |

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