CVE-2024-56758: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-54xr-rm2r-p8mq
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CVSS 5.5
CWE-476
Published
Advisory Summary

CVE-2024-56758 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.

CVE-2024-56758 at a Glance

CVE Identifier CVE-2024-56758
GHSA Identifier GHSA-54xr-rm2r-p8mq
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2024-56758

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2024-56758, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

In the Linux kernel, the following vulnerability has been resolved: btrfs: check folio mapping after unlock in relocate_one_folio() When we call btrfs_read_folio() to bring a folio uptodate, we unlock the folio. The result of that is that a different thread can modify the mapping (like remove it with invalidate) before we call folio_lock(). This results in an invalid page and we need to try again. In particular, if we are relocating concurrently with aborting a transaction, this can result in a crash like the following: BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 76 PID: 1411631 Comm: kworker/u322:5 Workqueue: events_unbound btrfs_reclaim_bgs_work RIP: 0010:set_page_extent_mapped+0x20/0xb0 RSP: 0018:ffffc900516a7be8 EFLAGS: 00010246 RAX: ffffea009e851d08 RBX: ffffea009e0b1880 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffc900516a7b90 RDI: ffffea009e0b1880 RBP: 0000000003573000 R08: 0000000000000001 R09: ffff88c07fd2f3f0 R10: 0000000000000000 R11: 0000194754b575be R12: 0000000003572000 R13: 0000000003572fff R14: 0000000000100cca R15: 0000000005582fff FS: 0000000000000000(0000) GS:ffff88c07fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000407d00f002 CR4: 00000000007706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> ? __die+0x78/0xc0 ? page_fault_oops+0x2a8/0x3a0 ? __switch_to+0x133/0x530 ? wq_worker_running+0xa/0x40 ? exc_page_fault+0x63/0x130 ? asm_exc_page_fault+0x22/0x30 ? set_page_extent_mapped+0x20/0xb0 relocate_file_extent_cluster+0x1a7/0x940 relocate_data_extent+0xaf/0x120 relocate_block_group+0x20f/0x480 btrfs_relocate_block_group+0x152/0x320 btrfs_relocate_chunk+0x3d/0x120 btrfs_reclaim_bgs_work+0x2ae/0x4e0 process_scheduled_works+0x184/0x370 worker_thread+0xc6/0x3e0 ? blk_add_timer+0xb0/0xb0 kthread+0xae/0xe0 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork+0x2f/0x40 ? flush_tlb_kernel_range+0x90/0x90 ret_from_fork_asm+0x11/0x20 </TASK> This occurs because cleanup_one_transaction() calls destroy_delalloc_inodes() which calls invalidate_inode_pages2() which takes the folio_lock before setting mapping to NULL. We fail to check this, and subsequently call set_extent_mapping(), which assumes that mapping != NULL (in fact it asserts that in debug mode) Note that the "fixes" patch here is not the one that introduced the race (the very first iteration of this code from 2009) but a more recent change that made this particular crash happen in practice.

References

NVD — CVE-2024-56758 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-56758
git.kernel.org/stable/c/36679fab54... WEB
https://git.kernel.org/stable/c/36679fab54fa7bcffafd469e2c474c1fc4beaee0
git.kernel.org/stable/c/3e74859ee3... WEB
https://git.kernel.org/stable/c/3e74859ee35edc33a022c3f3971df066ea0ca6b9
git.kernel.org/stable/c/c7b1bd52a0... WEB
https://git.kernel.org/stable/c/c7b1bd52a031ad0144d42eef0ba8471ce75122dd
git.kernel.org/stable/c/d508e56270... WEB
https://git.kernel.org/stable/c/d508e56270389b3a16f5b3cf247f4eb1bbad1578
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Frequently Asked Questions

What is CVE-2024-56758?
CVE-2024-56758 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-476: NULL Pointer Dereference.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2024-56758?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2024-56758?
CVE-2024-56758 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2024-56758?
CVE-2024-56758 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Maven dependencies for CVE-2024-56758?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-54xr-rm2r-p8mq",
  "modified" : "2025-11-03T18:31:15Z",
  "published" : "2025-01-06T18:31:03Z",
  "aliases" : [ "CVE-2024-56758" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: check folio mapping after unlock in relocate_one_folio()\n\nWhen we call btrfs_read_folio() to bring a folio uptodate, we unlock the\nfolio. The result of that is that a different thread can modify the\nmapping (like remove it with invalidate) before we call folio_lock().\nThis results in an invalid page and we need to try again.\n\nIn particular, if we are relocating concurrently with aborting a\ntransaction, this can result in a crash like the following:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000000\n  PGD 0 P4D 0\n  Oops: 0000 [#1] SMP\n  CPU: 76 PID: 1411631 Comm: kworker/u322:5\n  Workqueue: events_unbound btrfs_reclaim_bgs_work\n  RIP: 0010:set_page_extent_mapped+0x20/0xb0\n  RSP: 0018:ffffc900516a7be8 EFLAGS: 00010246\n  RAX: ffffea009e851d08 RBX: ffffea009e0b1880 RCX: 0000000000000000\n  RDX: 0000000000000000 RSI: ffffc900516a7b90 RDI: ffffea009e0b1880\n  RBP: 0000000003573000 R08: 0000000000000001 R09: ffff88c07fd2f3f0\n  R10: 0000000000000000 R11: 0000194754b575be R12: 0000000003572000\n  R13: 0000000003572fff R14: 0000000000100cca R15: 0000000005582fff\n  FS:  0000000000000000(0000) GS:ffff88c07fd00000(0000) knlGS:0000000000000000\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  CR2: 0000000000000000 CR3: 000000407d00f002 CR4: 00000000007706f0\n  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n  PKRU: 55555554\n  Call Trace:\n  <TASK>\n  ? __die+0x78/0xc0\n  ? page_fault_oops+0x2a8/0x3a0\n  ? __switch_to+0x133/0x530\n  ? wq_worker_running+0xa/0x40\n  ? exc_page_fault+0x63/0x130\n  ? asm_exc_page_fault+0x22/0x30\n  ? set_page_extent_mapped+0x20/0xb0\n  relocate_file_extent_cluster+0x1a7/0x940\n  relocate_data_extent+0xaf/0x120\n  relocate_block_group+0x20f/0x480\n  btrfs_relocate_block_group+0x152/0x320\n  btrfs_relocate_chunk+0x3d/0x120\n  btrfs_reclaim_bgs_work+0x2ae/0x4e0\n  process_scheduled_works+0x184/0x370\n  worker_thread+0xc6/0x3e0\n  ? blk_add_timer+0xb0/0xb0\n  kthread+0xae/0xe0\n  ? flush_tlb_kernel_range+0x90/0x90\n  ret_from_fork+0x2f/0x40\n  ? flush_tlb_kernel_range+0x90/0x90\n  ret_from_fork_asm+0x11/0x20\n  </TASK>\n\nThis occurs because cleanup_one_transaction() calls\ndestroy_delalloc_inodes() which calls invalidate_inode_pages2() which\ntakes the folio_lock before setting mapping to NULL. We fail to check\nthis, and subsequently call set_extent_mapping(), which assumes that\nmapping != NULL (in fact it asserts that in debug mode)\n\nNote that the \"fixes\" patch here is not the one that introduced the\nrace (the very first iteration of this code from 2009) but a more recent\nchange that made this particular crash happen in practice.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-56758"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/36679fab54fa7bcffafd469e2c474c1fc4beaee0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3e74859ee35edc33a022c3f3971df066ea0ca6b9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c7b1bd52a031ad0144d42eef0ba8471ce75122dd"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d508e56270389b3a16f5b3cf247f4eb1bbad1578"
  }, {
    "type" : "WEB",
    "url" : "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2025-01-06T17:15:40Z"
  }
}