btrfs: harden parsing of compression mount options

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Btrfs happily but incorrectly accepts the `-o compress=zlib+foo` and similar
options with any random suffix.

Fix that by explicitly checking the end of the strings.

Signed-off-by: Daniel Vacek <neelx@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Daniel Vacek 2025-06-02 17:53:19 +02:00 • committed by David Sterba

parent 3f0e865ae6

commit 3f093ccb95

1 changed files with 18 additions and 7 deletions

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fs/btrfs/super.c

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