CVE-2026-64522 (GCVE-0-2026-64522)
Vulnerability from cvelistv5
Published
2026-07-25 09:14
Modified
2026-10-19 20:48
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix eswitch mode block underflow on IPsec acquire SA mlx5e_xfrm_add_state() handles acquire-flow temporary SAs by allocating software state and skipping hardware offload setup. That path jumps to the common success label before taking the eswitch mode block. After tunnel-mode validation was moved earlier, the common success label unconditionally calls mlx5_eswitch_unblock_mode(). For acquire SAs, this decrements esw->offloads.num_block_mode without a matching increment. Return directly after installing the acquire SA offload handle, so only the paths that successfully called mlx5_eswitch_block_mode() call the matching unblock.
References
Impacted products
Vendor Product Version
Linux Linux Version: 22239eb258bc1e6ccdb2d3502fce1cc2b2a88386
Version: 22239eb258bc1e6ccdb2d3502fce1cc2b2a88386
Version: 22239eb258bc1e6ccdb2d3502fce1cc2b2a88386
Version: 993c4ba71596c30418ba5a0ddcf4f9c2f431466a
Version: 6.17.4   ≤
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