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Vulnerability record · CVE-2026-43153 · published 6 May 2026

CVE-2026-43153: Linux kernel vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.7%
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/2fbc8421d1db102c0e5458607e042a23a03648b1 Patch
https://git.kernel.org/stable/c/3a65ea768b8094e4699e72f9ab420eb9e0f3f568 Patch
https://git.kernel.org/stable/c/457121c01f609b9934addbb04d5c1ef638c71c61 Patch
https://git.kernel.org/stable/c/530082df991903f3330354e99e0cb7b05debfa86 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43153), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.