Riskcovery

CVE-2024-35787

md/md-bitmap: fix incorrect usage for sb_index

State
Published
Severity
7.8 High
Published
May 17, 2024
Updated
Aug 5, 2026
Reserved
May 17, 2024

Read the record on cve.org

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

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • d7038f951828da19fa9aafddfa087b69032c9687 to before 736ad6c577a367834118f57417038d45bb5e0a31Affected
  • d7038f951828da19fa9aafddfa087b69032c9687 to before 55e55eb65fd5e09faf5a0e49ffcdd37905aaf4daAffected
  • d7038f951828da19fa9aafddfa087b69032c9687 to before 5a95815b17428ce2f56ec18da5e0d1b2a1a15240Affected
  • d7038f951828da19fa9aafddfa087b69032c9687 to before ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06Affected
LinuxLinux
  • 6.6Affected
  • before 6.6Not affected
  • 6.6.24 through 6.6.*Not affected
  • 6.7.12 through 6.7.*Not affected
  • 6.8.3 through 6.8.*Not affected
  • 6.9 and laterNot affected

References

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