# CVE-2024-26955: linux: In the Linux kernel, the following vulnerability has been resolved:  nilfs2: prevent kernel bug at submit_bh_wbc()  F...

CVE-2024-26955 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-26955, released May 1, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-26955
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 1, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  nilfs2: prevent kernel bug at submit_bh_wbc()  Fix a bug where nilfs_get_block() returns a successful status when searching and inserting the specified block both fail inconsistently.  If this inconsistent behavior is not due to a previously fixed bug, then an unexpected race is occurring, so return a temporary error -EAGAIN instead.  This prevents callers such as __block_write_begin_int() from requesting a read into a buffer that is not mapped, which would cause the BUG_ON check for the BH_Mapped flag in submit_bh_wbc() to fail.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.85-1 | [DEBIAN-CVE-2024-26955](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26955.md) | May 1, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.7.12-1 | [DEBIAN-CVE-2024-26955](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26955.md) | May 1, 2024 |
| Linux | linux Debian 14 | 6.7.12-1 | [DEBIAN-CVE-2024-26955](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26955.md) | May 1, 2024 |

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