7.8

CVE-2026-74595

fscrypt: use the mount idmap for the owner check in fscrypt_ioctl_set_policy()

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 14f3db5542e62bcf6fe088a09760ac52d55306c5
Version < 174633a468817a49bd474bcfc9067c84e54efe68
Status affected
Version 14f3db5542e62bcf6fe088a09760ac52d55306c5
Version < 0baeb730044981f5ec5fb7d62a3763835ea606f6
Status affected
Version 14f3db5542e62bcf6fe088a09760ac52d55306c5
Version < 33b7e810ce09955aa02f3b632455cf5e7ac990a9
Status affected
Version 14f3db5542e62bcf6fe088a09760ac52d55306c5
Version < 6a67c460b12315033268dce597546984fe5739e7
Status affected
Version 14f3db5542e62bcf6fe088a09760ac52d55306c5
Version < 653e888a24c87b8bbeab44d7e558a1c1a3641088
Status affected
Version 14f3db5542e62bcf6fe088a09760ac52d55306c5
Version < 98516ba8b817f34e86bdd7a5b7a383cff75c3ddf
Status affected
Version 14f3db5542e62bcf6fe088a09760ac52d55306c5
Version < cf6c993c0feca7984797e634deba3c80342e199a
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 5.12
Status affected
Version 0
Version < 5.12
Status unaffected
Version <= 5.15.*
Version 5.15.217
Status unaffected
Version <= 6.1.*
Version 6.1.184
Status unaffected
Version <= 6.6.*
Version 6.6.152
Status unaffected
Version <= 6.12.*
Version 6.12.104
Status unaffected
Version <= 6.18.*
Version 6.18.45
Status unaffected
Version <= 7.1.*
Version 7.1.9
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.021
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/0baeb730044981f5ec5fb7d62a3763835ea606f6
https://git.kernel.org/stable/c/174633a468817a49bd474bcfc9067c84e54efe68
https://git.kernel.org/stable/c/33b7e810ce09955aa02f3b632455cf5e7ac990a9
https://git.kernel.org/stable/c/653e888a24c87b8bbeab44d7e558a1c1a3641088
https://git.kernel.org/stable/c/6a67c460b12315033268dce597546984fe5739e7
https://git.kernel.org/stable/c/98516ba8b817f34e86bdd7a5b7a383cff75c3ddf
https://git.kernel.org/stable/c/cf6c993c0feca7984797e634deba3c80342e199a