mm/kmemleak: fix sleeping function called from invalid context at print message

{
  "id": "26fe4adcad9175d6cebd983bfdf54d2e798c328ea37f4ffe1ebd2effcdffe819",
  "url": "https://osv.dev/vulnerability/CVE-2024-57885",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mm/kmemleak: fix sleeping function called from invalid context at print message",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: fix sleeping function called from invalid context at print message Address a bug in the kernel that triggers a \"sleeping function called from invalid context\" warning when /sys/kernel/debug/kmemleak is printed under specific conditions: - CONFIG_PREEMPT_RT=y - Set SELinux as the LSM for the system - Set kptr_restrict to 1 - kmemleak buffer contains at least one item BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 136, name: cat preempt_count: 1, expected: 0 RCU nest depth: 2, expected: 2 6 locks held by cat/136: #0: ffff32e64bcbf950 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb8/0xe30 #1: ffffafe6aaa9dea0 (scan_mutex){+.+.}-{3:3}, at: kmemleak_seq_start+0x34/0x128 #3: ffff32e6546b1cd0 (&object->lock){....}-{2:2}, at: kmemleak_seq_show+0x3c/0x1e0 #4: ffffafe6aa8d8560 (rcu_read_lock){....}-{1:2}, at: has_ns_capability_noaudit+0x8/0x1b0 #5: ffffafe6aabbc0f8 (notif_lock){+.+.}-{2:2}, at: avc_compute_av+0xc4/0x3d0 irq event stamp: 136660 hardirqs last enabled at (136659): [] _raw_spin_unlock_irqrestore+0xa8/0xd8 hardirqs last disabled at (136660): [] _raw_spin_lock_irqsave+0x8c/0xb0 softirqs last enabled at (0): [] copy_process+0x11d8/0x3df8 softirqs last disabled at (0): [<0000000000000000>] 0x0 Preemption disabled at: [] kmemleak_seq_show+0x3c/0x1e0 CPU: 1 UID: 0 PID: 136 Comm: cat Tainted: G E 6.11.0-rt7+ #",
    "evidence": "osv:CVE-2024-57885",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.70",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.9",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-57885",
      "aliases": [
        "CVE-2024-57885"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3a6f33d86baa8103c80f62edd9393e9f7bf25d72"
                },
                {
                  "fixed": "86d946f3f9992aaa12abcfd09f925446c2cd42a2"
                },
                {
                  "fixed": "64b2d32f22597b2a1dc83ac600b2426588851a97"
                },
                {
                  "fixed": "cddc76b165161a02ff14c4d84d0f5266d9d32b9e"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-57885.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.70"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.9"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-57885.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.400672905Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/64b2d32f22597b2a1dc83ac600b2426588851a97",
        "https://git.kernel.org/stable/c/86d946f3f9992aaa12abcfd09f925446c2cd42a2",
        "https://git.kernel.org/stable/c/cddc76b165161a02ff14c4d84d0f5266d9d32b9e",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57885.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-57885",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57885.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-57885",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 504568,
  "published_at": "2025-01-15T13:05:38.261+00:00"
}