CVE-2026-43153
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 07120f1abdff80f3d1351f733661abe28d609535 < 2fbc8421d1db102c0e5458607e042a23a03648b1 | affected |
| Linux | Linux | 07120f1abdff80f3d1351f733661abe28d609535 < 457121c01f609b9934addbb04d5c1ef638c71c61 | affected |
| Linux | Linux | 07120f1abdff80f3d1351f733661abe28d609535 < 530082df991903f3330354e99e0cb7b05debfa86 | affected |
| Linux | Linux | 07120f1abdff80f3d1351f733661abe28d609535 < 3a65ea768b8094e4699e72f9ab420eb9e0f3f568 | affected |
| Linux | Linux | 5.9 | affected |
| Linux | Linux | 0 < 5.9 | unaffected |
| Linux | Linux | 6.12.75 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.16 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.6 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/2fbc8421d1db102c0e5458607e042a23a03648b1
- https://git.kernel.org/stable/c/457121c01f609b9934addbb04d5c1ef638c71c61
- https://git.kernel.org/stable/c/530082df991903f3330354e99e0cb7b05debfa86
- https://git.kernel.org/stable/c/3a65ea768b8094e4699e72f9ab420eb9e0f3f568
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