CVE-2026-74595

CVE CVE-2026-74595EUVD EUVD-2026-64532Published 2026-08-22T15:31:45.000ZLast changed 2026-08-25T05:40:22.000ZCVSS 7.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: fscrypt: use the mount idmap for the owner check in fscrypt_ioctl_set_policy() fscrypt_ioctl_set_policy() calls inode_owner_or_capable() with &nop_mnt_idmap before allowing an encryption policy to be set, instead of the idmap of the mount the ioctl was issued on. fscrypt is used by filesystems that support idmapped mounts (e.g. ext4, f2fs), so on such a mount this compares the caller's fsuid against the unmapped on-disk owner rather than the mapped owner: the actual owner can be wrongly denied with -EACCES and an unrelated caller wrongly allowed. Use file_mnt_idmap(filp) instead.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 5.15.217; 14f3db5542e62bcf6fe088a09760ac52d55306c5 <98516ba8b817f34e86bdd7a5b7a383cff75c3ddf; patch: 0; 14f3db5542e62bcf6fe088a09760ac52d55306c5 <cf6c993c0feca7984797e634deba3c80342e199a; patch: 7.2; 14f3db5542e62bcf6fe088a09760ac52d55306c5 <653e888a24c87b8bbeab44d7e558a1c1a3641088; patch: 6.6.152; patch: 6.12.104; 5.12; 14f3db5542e62bcf6fe088a09760ac52d55306c5 <33b7e810ce09955aa02f3b632455cf5e7ac990a9; 14f3db5542e62bcf6fe088a09760ac52d55306c5 <6a67c460b12315033268dce597546984fe5739e7; 14f3db5542e62bcf6fe088a09760ac52d55306c5 <174633a468817a49bd474bcfc9067c84e54efe68; patch: 7.1.9; patch: 6.18.45; 14f3db5542e62bcf6fe088a09760ac52d55306c5 <0baeb730044981f5ec5fb7d62a3763835ea606f6; patch: 6.1.184

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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