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Status published
Unknown
CVE-2025-21671
zram: fix potential UAF of zram table
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: zram: fix potential UAF of zram table If zram_meta_alloc failed early, it frees allocated zram->table without setting it NULL. Which will potentially cause zram_meta_free to access the table if user reset an failed and uninitialized device.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Linux
View all reports →Affected Software
Linux
Vulnerable Versions:
ac3b5366b9b7c9d97b606532ceab43d2329a22f3, 0b5b0b65561b34e6e360de317e4bcd031bfabf42, 6fb92e9a52e3feae309a213950f21dfcd1eb0b40, 74363ec674cb172d8856de25776c8f3103f05e2f, 6.1.122, 6.6.68, 6.12.7
Timeline
Official Publish:
January 31st, 2025
Last Modified:
May 11th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.