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CVE-2025-38052 is a slab use-after-free vulnerability in the Linux kernel TIPC encryption completion function tipc_aead_encrypt_done. Network-namespace teardown can free the TIPC transmit cryptographic state while an asynchronous encryption operation remains queued. The cryptd_queue_worker workqueue can subsequently invoke the completion callback, which accesses the freed state. The triggering path involves interrupted SIMD encryption causing crypto_simd_usable() to return false and encryption to be deferred to cryptd. An eight-byte read from freed memory was observed through KASAN. The fix retains a network-namespace reference before encryption to prevent premature cleanup.
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A slab-use-after-free vulnerability in the Linux kernel's TIPC encryption handling. Deleting a network namespace can free a TIPC cryptographic context while an asynchronous encryption completion callback still accesses it. The advisory assigns CVSS v3 severity 7.8, with local access and low privileges required and potentially high confidentiality, integrity, and availability impacts. The fix holds a network namespace reference before encryption.
A slab use-after-free read vulnerability in the Linux kernel TIPC networking implementation, in tipc_aead_encrypt_done().
A slab-use-after-free read vulnerability in tipc_aead_encrypt_done within the Linux kernel's TIPC networking implementation. Red Hat addresses it in Important-rated advisory RHSA-2025:12662. The kernel update requires a reboot.
Listed as one of 573 vulnerabilities addressed by SUSE-SU-2026:20560-1 for kernel packages in SUSE Linux Micro Extras 6.2.
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