CVE-2026-98005

Summary

In the Linux kernel, the following vulnerability has been resolved:

erofs: delimit inode_share cache key components

Previously, inode_share keys were encoded as follows:

fingerprint || domain_id

It would be better to have a separator between the fingerprint and domain ID so that the fingerprint won't be parsed as part of a domain ID.

Change the key encoding as follows:

domain_id || '\0' || fingerprint

Since domain_id is a NUL-terminated string, this makes the in-memory key indices unambiguous.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/16322a67336cfeea0af4b05206ef8d0e0eda55bb
• https://git.kernel.org/stable/c/96bf9831fbf423b8104f7948cd8fe7007ecfb46c

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