{"cve":"CVE-2024-53160","nvd":{"published":"2024-12-24T12:15:24.340","modified":"2026-06-17T08:08:27.143","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu\n\nKCSAN reports a data race when access the krcp->monitor_work.timer.expires\nvariable in the schedule_delayed_monitor_work() function:\n\n<snip>\nBUG: KCSAN: data-race in __mod_timer / kvfree_call_rcu\n\nread to 0xffff888237d1cce8 of 8 bytes by task 10149 on cpu 1:\n schedule_delayed_monitor_work kernel/rcu/tree.c:3520 [inline]\n kvfree_call_rcu+0x3b8/0x510 kernel/rcu/tree.c:3839\n trie_update_elem+0x47c/0x620 kernel/bpf/lpm_trie.c:441\n bpf_map_update_value+0x324/0x350 kernel/bpf/syscall.c:203\n generic_map_update_batch+0x401/0x520 kernel/bpf/syscall.c:1849\n bpf_map_do_batch+0x28c/0x3f0 kernel/bpf/syscall.c:5143\n __sys_bpf+0x2e5/0x7a0\n __do_sys_bpf kernel/bpf/syscall.c:5741 [inline]\n __se_sys_bpf kernel/bpf/syscall.c:5739 [inline]\n __x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5739\n x64_sys_call+0x2625/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:322\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nwrite to 0xffff888237d1cce8 of 8 bytes by task 56 on cpu 0:\n __mod_timer+0x578/0x7f0 kernel/time/timer.c:1173\n add_timer_global+0x51/0x70 kernel/time/timer.c:1330\n __queue_delayed_work+0x127/0x1a0 kernel/workqueue.c:2523\n queue_delayed_work_on+0xdf/0x190 kernel/workqueue.c:2552\n queue_delayed_work include/linux/workqueue.h:677 [inline]\n schedule_delayed_monitor_work kernel/rcu/tree.c:3525 [inline]\n kfree_rcu_monitor+0x5e8/0x660 kernel/rcu/tree.c:3643\n process_one_work kernel/workqueue.c:3229 [inline]\n process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310\n worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391\n kthread+0x1d1/0x210 kernel/kthread.c:389\n ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 0 UID: 0 PID: 56 Comm: kworker/u8:4 Not tainted 6.12.0-rc2-syzkaller-00050-g5b7c893ed5ed #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nWorkqueue: events_unbound kfree_rcu_monitor\n<snip>\n\nkfree_rcu_monitor() rearms the work if a \"krcp\" has to be still\noffloaded and this is done without holding krcp->lock, whereas\nthe kvfree_call_rcu() holds it.\n\nFix it by acquiring the \"krcp->lock\" for kfree_rcu_monitor() so\nboth functions do not race anymore.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","score":4.7},"cwes":["CWE-362"],"references":["https://git.kernel.org/stable/c/05b8ea1f16667f07c8e5843fb4bde3e49d49ead8","https://git.kernel.org/stable/c/5ced426d97ce84299ecfcc7bd8b38f975fd11089","https://git.kernel.org/stable/c/967a0e61910825d1fad009d836a6cb41f7402395","https://git.kernel.org/stable/c/a23da88c6c80e41e0503e0b481a22c9eea63f263"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:57:56.913276502+00:00"},"epss":{"cve":"CVE-2024-53160","score":0.00155,"percentile":0.04651,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}