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CVE-2024-35787

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: fix incorrect usage for sb_index Commit d7038f951828 ("md-bitmap: don't use ->index for pages backing the bitmap…

Published May 17, 2024EPSS 0.23%

Overview

CVE-2024-35787 is a high-severity vulnerability. It was published on May 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

md/md-bitmap: fix incorrect usage for sb_index

Commit d7038f951828 ("md-bitmap: don't use ->index for pages backing the

bitmap file") removed page->index from bitmap code, but left wrong code

logic for clustered-md. current code never set slot offset for cluster

nodes, will sometimes cause crash in clustered env.

Call trace (partly):

md_bitmap_file_set_bit+0x110/0x1d8 [md_mod]

md_bitmap_startwrite+0x13c/0x240 [md_mod]

raid1_make_request+0x6b0/0x1c08 [raid1]

md_handle_request+0x1dc/0x368 [md_mod]

md_submit_bio+0x80/0xf8 [md_mod]

__submit_bio+0x178/0x300

submit_bio_noacct_nocheck+0x11c/0x338

submit_bio_noacct+0x134/0x614

submit_bio+0x28/0xdc

submit_bh_wbc+0x130/0x1cc

submit_bh+0x1c/0x28

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/55e55eb65fd5e09faf5a0e49ffcdd37905aaf4daRefgit.kernel.org/stable/c/5a95815b17428ce2f56ec18da5e0d1b2a1a15240Refgit.kernel.org/stable/c/736ad6c577a367834118f57417038d45bb5e0a31Refgit.kernel.org/stable/c/ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06Refgit.kernel.org/stable/c/55e55eb65fd5e09faf5a0e49ffcdd37905aaf4daRefgit.kernel.org/stable/c/5a95815b17428ce2f56ec18da5e0d1b2a1a15240Refgit.kernel.org/stable/c/736ad6c577a367834118f57417038d45bb5e0a31Refgit.kernel.org/stable/c/ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06

How CyberStrike helps

Frequently asked questions

What is CVE-2024-35787?

CVE-2024-35787 is a high-severity vulnerability. It was published on May 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-35787?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-35787?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-35787?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-35787 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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