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Change History

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]
 raid

kernel.org https://git.kernel.org/stable/c/55e55eb65fd5e09faf5a0e49ffcdd37905aaf4da [No types assigned]

kernel.org https://git.kernel.org/stable/c/5a95815b17428ce2f56ec18da5e0d1b2a1a15240 [No types assigned]

kernel.org https://git.kernel.org/stable/c/736ad6c577a367834118f57417038d45bb5e0a31 [No types assigned]

kernel.org https://git.kernel.org/stable/c/ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06 [No types assigned]