{"id":"CVE-2024-56583","title":"sched/deadline: Fix warning in migrate_enable for boosted tasks","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsched/deadline: Fix warning in migrate_enable for boosted tasks\n\nWhen running the following command:\n\nwhile true; do\n    stress-ng --cyclic 30 --timeout 30s --minimize …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 295d6d5e373607729bcc8182c25afe964655714f < 6923c1b117a93477c392a1d46da73ef40987a091","Linux >= 295d6d5e373607729bcc8182c25afe964655714f < b600d30402854415aa57548a6b53dc6478f65517","Linux >= 295d6d5e373607729bcc8182c25afe964655714f < e41074904d9ed3fe582d6e544c77b40c22043c82","Linux >= 295d6d5e373607729bcc8182c25afe964655714f < 0664e2c311b9fa43b33e3e81429cd0c2d7f9c638","Linux fd8cb2e71cdd8e814cbdadddd0d0e6e3d49eaa2c","Linux >= 4.14.70 < 4.15","Linux 4.15"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:28:52.906552Z"},"published":"2024-12-27","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:31:24.188Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-56583","references":[{"url":"https://git.kernel.org/stable/c/6923c1b117a93477c392a1d46da73ef40987a091"},{"url":"https://git.kernel.org/stable/c/b600d30402854415aa57548a6b53dc6478f65517"},{"url":"https://git.kernel.org/stable/c/e41074904d9ed3fe582d6e544c77b40c22043c82"},{"url":"https://git.kernel.org/stable/c/0664e2c311b9fa43b33e3e81429cd0c2d7f9c638"}],"tags":["cve.org"],"epss":0.00231,"epssPercentile":0.14071,"ingestedAt":"2026-11-03T14:47:02.523Z","slug":"CVE-2024-56583","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsched/deadline: Fix warning in migrate_enable for boosted tasks\n\nWhen running the following command:\n\nwhile true; do\n    stress-ng --cyclic 30 --timeout 30s --minimize --quiet\ndone\n\na warning is eventually triggered:\n\nWARNING: CPU: 43 PID: 2848 at kernel/sched/deadline.c:794\nsetup_new_dl_entity+0x13e/0x180\n...\nCall Trace:\n <TASK>\n ? show_trace_log_lvl+0x1c4/0x2df\n ? enqueue_dl_entity+0x631/0x6e0\n ? setup_new_dl_entity+0x13e/0x180\n ? __warn+0x7e/0xd0\n ? report_bug+0x11a/0x1a0\n ? handle_bug+0x3c/0x70\n ? exc_invalid_op+0x14/0x70\n ? asm_exc_invalid_op+0x16/0x20\n enqueue_dl_entity+0x631/0x6e0\n enqueue_task_dl+0x7d/0x120\n __do_set_cpus_allowed+0xe3/0x280\n __set_cpus_allowed_ptr_locked+0x140/0x1d0\n __set_cpus_allowed_ptr+0x54/0xa0\n migrate_enable+0x7e/0x150\n rt_spin_unlock+0x1c/0x90\n group_send_sig_info+0xf7/0x1a0\n ? kill_pid_info+0x1f/0x1d0\n kill_pid_info+0x78/0x1d0\n kill_proc_info+0x5b/0x110\n __x64_sys_kill+0x93/0xc0\n do_syscall_64+0x5c/0xf0\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\n RIP: 0033:0x7f0dab31f92b\n\nThis warning occurs because set_cpus_allowed dequeues and enqueues tasks\nwith the ENQUEUE_RESTORE flag set. If the task is boosted, the warning\nis triggered. A boosted task already had its parameters set by\nrt_mutex_setprio, and a new call to setup_new_dl_entity is unnecessary,\nhence the WARN_ON call.\n\nCheck if we are requeueing a boosted task and avoid calling\nsetup_new_dl_entity if that's the case.\n\n## Affected\n\n- `Linux >= 295d6d5e373607729bcc8182c25afe964655714f < 6923c1b117a93477c392a1d46da73ef40987a091`\n- `Linux >= 295d6d5e373607729bcc8182c25afe964655714f < b600d30402854415aa57548a6b53dc6478f65517`\n- `Linux >= 295d6d5e373607729bcc8182c25afe964655714f < e41074904d9ed3fe582d6e544c77b40c22043c82`\n- `Linux >= 295d6d5e373607729bcc8182c25afe964655714f < 0664e2c311b9fa43b33e3e81429cd0c2d7f9c638`\n- `Linux fd8cb2e71cdd8e814cbdadddd0d0e6e3d49eaa2c`\n- `Linux >= 4.14.70 < 4.15`\n- `Linux 4.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}