erofs: guard on-disk algorithm IDs against Z_EROFS_COMPRESSION_MAX

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All on-disk algorithm IDs should be validated against
supported Z_EROFS_COMPRESSION_MAX.

This includes a partial revert of a previous commit and also adds
validation for encoded extents.

Fixes: 131897c65e ("erofs: fix invalid algorithm for encoded extents")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <xiang@kernel.org>

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This commit is contained in:

Gao Xiang 2026-08-14 16:14:37 +08:00

parent 862427ebb8

commit 6847d4d1a2

2 changed files with 22 additions and 15 deletions

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2

fs/erofs/internal.h

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35

fs/erofs/zmap.c

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