{"cve":"CVE-2024-56553","nvd":{"published":"2024-12-27T15:15:14.073","modified":"2026-06-17T08:12:22.540","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix memleak of proc->delivered_freeze\n\nIf a freeze notification is cleared with BC_CLEAR_FREEZE_NOTIFICATION\nbefore calling binder_freeze_notification_done(), then it is detached\nfrom its reference (e.g. ref->freeze) but the work remains queued in\nproc->delivered_freeze. This leads to a memory leak when the process\nexits as any pending entries in proc->delivered_freeze are not freed:\n\n  unreferenced object 0xffff38e8cfa36180 (size 64):\n    comm \"binder-util\", pid 655, jiffies 4294936641\n    hex dump (first 32 bytes):\n      b8 e9 9e c8 e8 38 ff ff b8 e9 9e c8 e8 38 ff ff  .....8.......8..\n      0b 00 00 00 00 00 00 00 3c 1f 4b 00 00 00 00 00  ........<.K.....\n    backtrace (crc 95983b32):\n      [<000000000d0582cf>] kmemleak_alloc+0x34/0x40\n      [<000000009c99a513>] __kmalloc_cache_noprof+0x208/0x280\n      [<00000000313b1704>] binder_thread_write+0xdec/0x439c\n      [<000000000cbd33bb>] binder_ioctl+0x1b68/0x22cc\n      [<000000002bbedeeb>] __arm64_sys_ioctl+0x124/0x190\n      [<00000000b439adee>] invoke_syscall+0x6c/0x254\n      [<00000000173558fc>] el0_svc_common.constprop.0+0xac/0x230\n      [<0000000084f72311>] do_el0_svc+0x40/0x58\n      [<000000008b872457>] el0_svc+0x38/0x78\n      [<00000000ee778653>] el0t_64_sync_handler+0x120/0x12c\n      [<00000000a8ec61bf>] el0t_64_sync+0x190/0x194\n\nThis patch fixes the leak by ensuring that any pending entries in\nproc->delivered_freeze are freed during binder_deferred_release().","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/1db76ec2b4b206ff943e292a0b55e68ff3443598","https://git.kernel.org/stable/c/b8b77712142fb146fe18d2253bc8a798d522e427"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:57:56.913276502+00:00"},"epss":{"cve":"CVE-2024-56553","score":0.00189,"percentile":0.08541,"date":"2026-10-31"},"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."]}