CVE-2025-21671
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-21671
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21671.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-21671
- Downstream
- Related
- Published
- 2025-01-31T11:25:34Z
- Modified
- 2025-10-22T09:25:24.316041Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- zram: fix potential UAF of zram table
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
zram: fix potential UAF of zram table
If zrammetaalloc failed early, it frees allocated zram->table without setting it NULL. Which will potentially cause zrammetafree to access the table if user reset an failed and uninitialized device.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/212fe1c0df4a150fb6298db2cfff267ceaba5402
- https://git.kernel.org/stable/c/571d3f6045cd3a6d9f6aec33b678f3ffe97582ef
- https://git.kernel.org/stable/c/902ef8f16d5ca77edc77c30656be54186c1e99b7
- https://git.kernel.org/stable/c/fe3de867f94819ba0f28e035c0b0182150147d95
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedac3b5366b9b7c9d97b606532ceab43d2329a22f3Fixedfe3de867f94819ba0f28e035c0b0182150147d95
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0b5b0b65561b34e6e360de317e4bcd031bfabf42Fixed571d3f6045cd3a6d9f6aec33b678f3ffe97582ef
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6fb92e9a52e3feae309a213950f21dfcd1eb0b40Fixed902ef8f16d5ca77edc77c30656be54186c1e99b7
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced74363ec674cb172d8856de25776c8f3103f05e2fFixed212fe1c0df4a150fb6298db2cfff267ceaba5402