CVE-2026-64415

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> mm/swap: add cond_resched() in swap_reclaim_full_clusters to prevent softlockup<br /> <br /> We hit a real softlockup in an internal stress test environment. The<br /> workload was LTP memory/swap stress on a large arm64 machine, with 320<br /> CPUs, about 1TB memory and an 8.6GB swap device. The system was under<br /> heavy load and the swap device had a large number of full clusters. The<br /> softlockup was triggered during a stress test after about 3 days.<br /> <br /> So, add periodic cond_resched() calls during large full_clusters<br /> reclaim operations to prevent softlockup issues.<br /> <br /> Detailed call trace as follow:<br /> <br /> PID: 3817773 TASK: ffff0883bb28b780 CPU: 48 COMMAND: "kworker/48:7"<br /> #0 [ffff800080183d10] __crash_kexec at ffffa4c1361e5de4<br /> #1 [ffff800080183d90] panic at ffffa4c1360d5e9c<br /> #2 [ffff800080183e20] watchdog_timer_fn at ffffa4c136231fa8<br /> ...<br /> #16 [ffff8000c4ad3cb0] swap_cache_del_folio at ffffa4c1363e1614<br /> #17 [ffff8000c4ad3ce0] __try_to_reclaim_swap at ffffa4c1363e4bfc<br /> #18 [ffff8000c4ad3d40] swap_reclaim_full_clusters at ffffa4c1363e5474<br /> #19 [ffff8000c4ad3da0] swap_reclaim_work at ffffa4c1363e550c<br /> #20 [ffff8000c4ad3dc0] process_one_work at ffffa4c136102edc<br /> #21 [ffff8000c4ad3e10] worker_thread at ffffa4c136103398<br /> #22 [ffff8000c4ad3e70] kthread at ffffa4c13610d95c