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CVE-2026-31673

HIGH

7.8

Description

In the Linux kernel, the following vulnerability has been resolved: af_unix: read UNIX_DIAG_VFS data under unix_state_lock Exact UNIX diag lookups hold a reference to the socket, but not to u->path. Meanwhile, unix_release_sock() clears u->path under unix_state_lock() and drops the path reference after unlocking. Read the inode and device numbers for UNIX_DIAG_VFS while holding unix_state_lock(), then emit the netlink attribute after dropping the lock. This keeps the VFS data stable while the reply is being built.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published4/25/2026

Last Modified4/27/2026

Sourcenvd

Honeypot Sightings0

References

https://git.kernel.org/stable/c/0c739f3785f84af695952c2bac8be2f45082c9b8(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/39897df386376912d561d4946499379effa1e7ef(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/900a4e0910e98b8caef117d5df00471fa438dcf9(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/b9232421a77a649c9376c99fdfc8cb7f79cad34c(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/bdf206e740bf2919d818f132c8c9cc7ed91d11c0(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

IOC Correlations

No correlations recorded

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