CVE-2024-35787

md/md-bitmap: fix incorrect usage for sb_index

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

N/A

CVSS

Severity:

EPSS 0.16%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/736ad6c577a367834118f57417038d45bb5e0a31
https://git.kernel.org/stable/c/55e55eb65fd5e09faf5a0e49ffcdd37905aaf4da
https://git.kernel.org/stable/c/5a95815b17428ce2f56ec18da5e0d1b2a1a15240
https://git.kernel.org/stable/c/ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06

Frequently Asked Questions

What is the severity of CVE-2024-35787?: CVE-2024-35787 has not yet been assigned a CVSS score.
How to fix CVE-2024-35787?: To fix CVE-2024-35787, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-35787 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-35787 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-35787?: CVE-2024-35787 affects Linux Linux, Linux Linux.

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