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kcsan: Turn report_filterlist_lock into a raw_spinlock

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: kcsan: Turn report_filterlist_lock into a raw_spinlock Ran Xiaokai reports that with a KCSAN-enabled PREEMPT_RT kernel, we can see splats like: | BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1 | preempt_count: 10002, expected: 0 | RCU nest depth: 0, expected: 0 | no locks held by swapper/1/0. | irq event stamp: 156674 | hardirqs last enabled at (156673): [] do_idle+0x1f9/0x240 | hardirqs last disabled at (156674): [] sysvec_apic_timer_interrupt+0x14/0xc0 | softirqs last enabled at (0): [] copy_process+0xfc7/0x4b60 | softirqs last disabled at (0): [<0000000000000000>] 0x0 | Preemption disabled at: | [] paint_ptr+0x2a/0x90 | CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0+ #3 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org 04/01/2014 | Call Trace: | | dump_stack_lvl+0x7e/0xc0 | dump_stack+0x1d/0x30 | __might_resched+0x1a2/0x270 | rt_spin_lock+0x68/0x170 | kcsan_skip_report_debugfs+0x43/0xe0 | print_report+0xb5/0x590 | kcsan_report_known_origin+0x1b1/0x1d0 | kcsan_setup_watchpoint+0x348/0x650 | __tsan_unaligned_write1+0x16d/0x1d0 | hrtimer_interrupt+0x3d6/0x430 | __sysvec_apic_timer_interrupt+0xe8/0x3a0 | sysvec_apic_timer_interrupt+0x97/0xc0 | On a detected data race, KCSAN's reporting logic checks if it should filter the report. That

Products
Kernel
Affected versions
Not specified
Fixed versions
5.10.231, 5.15.174, 6.1.120, 6.12.5, 6.6.66
CVEs
CVE-2024-56610
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 15:41 UTC · Revision 1

Source evidence

kcsan: Turn report_filterlist_lock into a raw_spinlock

core-osv · Original source

Published 27 Dec 2024, 14:51 UTC

In the Linux kernel, the following vulnerability has been resolved: kcsan: Turn report_filterlist_lock into a raw_spinlock Ran Xiaokai reports that with a KCSAN-enabled PREEMPT_RT kernel, we can see splats like: | BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1 | preempt_count: 10002, expected: 0 | RCU nest depth: 0, expected: 0 | no locks held by swapper/1/0. | irq event stamp: 156674 | hardirqs last enabled at (156673): [] do_idle+0x1f9/0x240 | hardirqs last disabled at (156674): [] sysvec_apic_timer_interrupt+0x14/0xc0 | softirqs last enabled at (0): [] copy_process+0xfc7/0x4b60 | softirqs last disabled at (0): [<0000000000000000>] 0x0 | Preemption disabled at: | [] paint_ptr+0x2a/0x90 | CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0+ #3 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org 04/01/2014 | Call Trace: | | dump_stack_lvl+0x7e/0xc0 | dump_stack+0x1d/0x30 | __might_resched+0x1a2/0x270 | rt_spin_lock+0x68/0x170 | kcsan_skip_report_debugfs+0x43/0xe0 | print_report+0xb5/0x590 | kcsan_report_known_origin+0x1b1/0x1d0 | kcsan_setup_watchpoint+0x348/0x650 | __tsan_unaligned_write1+0x16d/0x1d0 | hrtimer_interrupt+0x3d6/0x430 | __sysvec_apic_timer_interrupt+0xe8/0x3a0 | sysvec_apic_timer_interrupt+0x97/0xc0 | On a detected data race, KCSAN's reporting logic checks if it should filter the report. That

osv:CVE-2024-56610

Kernel

Fixed versions: 5.10.231, 5.15.174, 6.1.120, 6.6.66, 6.12.5

Complete source record
{
  "id": "c0b29b5dabf6e453648029b2c1d46fdc6cb9919dbd7e2ce0c24c0ea78a9e19bf",
  "url": "https://osv.dev/vulnerability/CVE-2024-56610",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "kcsan: Turn report_filterlist_lock into a raw_spinlock",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: kcsan: Turn report_filterlist_lock into a raw_spinlock Ran Xiaokai reports that with a KCSAN-enabled PREEMPT_RT kernel, we can see splats like: | BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48 | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1 | preempt_count: 10002, expected: 0 | RCU nest depth: 0, expected: 0 | no locks held by swapper/1/0. | irq event stamp: 156674 | hardirqs last enabled at (156673): [] do_idle+0x1f9/0x240 | hardirqs last disabled at (156674): [] sysvec_apic_timer_interrupt+0x14/0xc0 | softirqs last enabled at (0): [] copy_process+0xfc7/0x4b60 | softirqs last disabled at (0): [<0000000000000000>] 0x0 | Preemption disabled at: | [] paint_ptr+0x2a/0x90 | CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0+ #3 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org 04/01/2014 | Call Trace: | | dump_stack_lvl+0x7e/0xc0 | dump_stack+0x1d/0x30 | __might_resched+0x1a2/0x270 | rt_spin_lock+0x68/0x170 | kcsan_skip_report_debugfs+0x43/0xe0 | print_report+0xb5/0x590 | kcsan_report_known_origin+0x1b1/0x1d0 | kcsan_setup_watchpoint+0x348/0x650 | __tsan_unaligned_write1+0x16d/0x1d0 | hrtimer_interrupt+0x3d6/0x430 | __sysvec_apic_timer_interrupt+0xe8/0x3a0 | sysvec_apic_timer_interrupt+0x97/0xc0 | On a detected data race, KCSAN's reporting logic checks if it should filter the report. That",
    "evidence": "osv:CVE-2024-56610",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.231",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.174",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.120",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.66",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-56610",
      "aliases": [
        "CVE-2024-56610"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "dfd402a4c4baae42398ce9180ff424d589b8bffc"
                },
                {
                  "fixed": "f4f2ef66d288ea796ddb8ecbdc2df074ab2d5f4d"
                },
                {
                  "fixed": "ea6588abcc15d68fdeae777ffe3dd74c02eab407"
                },
                {
                  "fixed": "0ab4951c1473c7d1ceaf1232eb927109cd1c4859"
                },
                {
                  "fixed": "dca4e74a918586913d251c0b359e8cc96a3883ea"
                },
                {
                  "fixed": "889a0d3a35fdedba1c5dcb6410c95c32421680ec"
                },
                {
                  "fixed": "59458fa4ddb47e7891c61b4a928d13d5f5b00aa0"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56610.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.8.0"
                },
                {
                  "fixed": "5.10.231"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.174"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.120"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.66"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56610.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.142044648Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0ab4951c1473c7d1ceaf1232eb927109cd1c4859",
        "https://git.kernel.org/stable/c/59458fa4ddb47e7891c61b4a928d13d5f5b00aa0",
        "https://git.kernel.org/stable/c/889a0d3a35fdedba1c5dcb6410c95c32421680ec",
        "https://git.kernel.org/stable/c/dca4e74a918586913d251c0b359e8cc96a3883ea",
        "https://git.kernel.org/stable/c/ea6588abcc15d68fdeae777ffe3dd74c02eab407",
        "https://git.kernel.org/stable/c/f4f2ef66d288ea796ddb8ecbdc2df074ab2d5f4d",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56610.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-56610",
        "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/2024/56xxx/CVE-2024-56610.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-56610",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 496926,
  "published_at": "2024-12-27T14:51:15.305+00:00"
}