ghsa-qvfp-2hw2-qffh
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
binder: fix memleak of proc->delivered_freeze
If a freeze notification is cleared with BC_CLEAR_FREEZE_NOTIFICATION before calling binder_freeze_notification_done(), then it is detached from its reference (e.g. ref->freeze) but the work remains queued in proc->delivered_freeze. This leads to a memory leak when the process exits as any pending entries in proc->delivered_freeze are not freed:
unreferenced object 0xffff38e8cfa36180 (size 64): comm "binder-util", pid 655, jiffies 4294936641 hex dump (first 32 bytes): b8 e9 9e c8 e8 38 ff ff b8 e9 9e c8 e8 38 ff ff .....8.......8.. 0b 00 00 00 00 00 00 00 3c 1f 4b 00 00 00 00 00 ........<.K..... backtrace (crc 95983b32): [<000000000d0582cf>] kmemleak_alloc+0x34/0x40 [<000000009c99a513>] __kmalloc_cache_noprof+0x208/0x280 [<00000000313b1704>] binder_thread_write+0xdec/0x439c [<000000000cbd33bb>] binder_ioctl+0x1b68/0x22cc [<000000002bbedeeb>] __arm64_sys_ioctl+0x124/0x190 [<00000000b439adee>] invoke_syscall+0x6c/0x254 [<00000000173558fc>] el0_svc_common.constprop.0+0xac/0x230 [<0000000084f72311>] do_el0_svc+0x40/0x58 [<000000008b872457>] el0_svc+0x38/0x78 [<00000000ee778653>] el0t_64_sync_handler+0x120/0x12c [<00000000a8ec61bf>] el0t_64_sync+0x190/0x194
This patch fixes the leak by ensuring that any pending entries in proc->delivered_freeze are freed during binder_deferred_release().
{
"affected": [],
"aliases": [
"CVE-2024-56553"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-27T15:15:14Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix memleak of proc-\u003edelivered_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-\u003efreeze) but the work remains queued in\nproc-\u003edelivered_freeze. This leads to a memory leak when the process\nexits as any pending entries in proc-\u003edelivered_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 ........\u003c.K.....\n backtrace (crc 95983b32):\n [\u003c000000000d0582cf\u003e] kmemleak_alloc+0x34/0x40\n [\u003c000000009c99a513\u003e] __kmalloc_cache_noprof+0x208/0x280\n [\u003c00000000313b1704\u003e] binder_thread_write+0xdec/0x439c\n [\u003c000000000cbd33bb\u003e] binder_ioctl+0x1b68/0x22cc\n [\u003c000000002bbedeeb\u003e] __arm64_sys_ioctl+0x124/0x190\n [\u003c00000000b439adee\u003e] invoke_syscall+0x6c/0x254\n [\u003c00000000173558fc\u003e] el0_svc_common.constprop.0+0xac/0x230\n [\u003c0000000084f72311\u003e] do_el0_svc+0x40/0x58\n [\u003c000000008b872457\u003e] el0_svc+0x38/0x78\n [\u003c00000000ee778653\u003e] el0t_64_sync_handler+0x120/0x12c\n [\u003c00000000a8ec61bf\u003e] el0t_64_sync+0x190/0x194\n\nThis patch fixes the leak by ensuring that any pending entries in\nproc-\u003edelivered_freeze are freed during binder_deferred_release().",
"id": "GHSA-qvfp-2hw2-qffh",
"modified": "2025-01-15T21:31:40Z",
"published": "2024-12-27T15:31:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56553"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1db76ec2b4b206ff943e292a0b55e68ff3443598"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b8b77712142fb146fe18d2253bc8a798d522e427"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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