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CVE-2026-43268: hfsplus: pretend special inodes as regular files

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-06 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: hfsplus: pretend special inodes as regular files Since commit af153bb63a33 ("vfs: catch invalid modes in may_open()") requires any inode be one of S_IFDIR/S_IFLNK/S_IFREG/S_IFCHR/S_IFBLK/ S_IFIFO/S_IFSOCK type, use S_IFREG for special inodes.

Affected products

• Linux kernel: from 2.6.12.1 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16 — fixed in 5.10.252, 5.15.202, 6.1.165, 6.12.75, 6.18.16, 6.19.6

How to fix

Upgrade to a fixed version: Linux kernel 5.10.252, 5.15.202, 6.1.165, 6.12.75. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/67407d6abc9520a8a4661285b3ed294eb73ff6e7
• https://git.kernel.org/stable/c/676bc99d0b3e356cdfec5d8204518e1aac14ec84
• https://git.kernel.org/stable/c/799c492a619a10322543d13e6d2a6d27335c868c
• https://git.kernel.org/stable/c/9353d4ee26dc33f6ada1646e84660f4c59189763
• https://git.kernel.org/stable/c/d209ebaee93fc5089101d34d1b38a91d7abb03fd
• https://git.kernel.org/stable/c/dcac5582f90b55a267d89769073c5651990b2ec5
• https://git.kernel.org/stable/c/de9affb698d5034888314880736925c39d6d048e
• https://git.kernel.org/stable/c/ed8889ca21b6ab37bc1435c4009ce37a79acb9e6

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