CVE-2026-43153

xfs: remove xfs_attr_leaf_hasname

HIGH
7.8
CVSS Score
Published: May 6, 2026 at 11:27 AM UTC
Updated: October 21, 2026 at 01:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: remove xfs_attr_leaf_hasname The calling convention of xfs_attr_leaf_hasname() is problematic, because it returns a NULL buffer when xfs_attr3_leaf_read fails, a valid buffer when xfs_attr3_leaf_lookup_int returns -ENOATTR or -EEXIST, and a non-NULL buffer pointer for an already released buffer when xfs_attr3_leaf_lookup_int fails with other error values. Fix this by simply open coding xfs_attr_leaf_hasname in the callers, so that the buffer release code is done by each caller of xfs_attr3_leaf_read.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.9 ≤ v < 6.12.756.13 ≤ v < 6.18.166.19 ≤ v < 6.19.65.97120f1abdff80f3d1351f733661abe28d609535
Vendor states this is fixed in 2fbc8421d1db102c0e5458607e042a23a03648b1 (fixed)
Vendor states this is fixed in 3a65ea768b8094e4699e72f9ab420eb9e0f3f568 (fixed)
Vendor states this is fixed in 457121c01f609b9934addbb04d5c1ef638c71c61 (fixed)
Vendor states this is fixed in 530082df991903f3330354e99e0cb7b05debfa86 (fixed)
Vendor states this is fixed in 5.9 (unaffected)
Vendor states this is fixed in 6.12.75 (unaffected)
Vendor states this is fixed in 6.18.16 (unaffected)
Vendor states this is fixed in 6.19.6 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.0 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-OtherCWE-416

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