Vulnerability-Lookup

FKIE_CVE-2023-53616

Vulnerability from fkie_nvd - Published: 2025-10-04 16:15 - Updated: 2026-08-04 10:19

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount syzbot found an invalid-free in diUnmount: BUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline] BUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674 Free of addr ffff88806f410000 by task syz-executor131/3632 CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460 ____kasan_slab_free+0xfb/0x120 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750 slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x71/0x110 mm/slub.c:3674 diUnmount+0xef/0x100 fs/jfs/jfs_imap.c:195 jfs_umount+0x108/0x370 fs/jfs/jfs_umount.c:63 jfs_put_super+0x86/0x190 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x310 fs/super.c:492 kill_block_super+0x79/0xd0 fs/super.c:1428 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1186 task_work_run+0x243/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x664/0x2070 kernel/exit.c:820 do_group_exit+0x1fd/0x2b0 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd [...] JFS_IP(ipimap)->i_imap is not setting to NULL after free in diUnmount. If jfs_remount() free JFS_IP(ipimap)->i_imap but then failed at diMount(). JFS_IP(ipimap)->i_imap will be freed once again. Fix this problem by setting JFS_IP(ipimap)->i_imap to NULL after free.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/114ea3cb13ab25f7178cb60283adb93d2f96dad7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4de3a603010e0ca334487de24c6aab0777b7f808	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5873df0195124be2f357de11bfd473ead4f90ed8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6e2bda2c192d0244b5a78b787ef20aa10cb319b7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/756747d4b439e3e1159282ae89f17eefebbe9b25	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/88484bde6f12126616b38e43b6c00edcd941f615	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c3c0f0ddd851b3fa3e9d3450bbcd561f4f850469	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ef7311101ca43dd73b45bca7a30ac72d9535ff87	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/jfs/jfs_imap.c"
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.326",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.133",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
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      "nodes": [
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          "negate": false,
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    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: fix invalid free of JFS_IP(ipimap)-\u003ei_imap in diUnmount\n\nsyzbot found an invalid-free in diUnmount:\n\nBUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline]\nBUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674\nFree of addr ffff88806f410000 by task syz-executor131/3632\n\n CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\n Call Trace:\n  \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:88 [inline]\n  dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106\n  print_address_description+0x74/0x340 mm/kasan/report.c:284\n  print_report+0x107/0x1f0 mm/kasan/report.c:395\n  kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460\n  ____kasan_slab_free+0xfb/0x120\n  kasan_slab_free include/linux/kasan.h:177 [inline]\n  slab_free_hook mm/slub.c:1724 [inline]\n  slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750\n  slab_free mm/slub.c:3661 [inline]\n  __kmem_cache_free+0x71/0x110 mm/slub.c:3674\n  diUnmount+0xef/0x100 fs/jfs/jfs_imap.c:195\n  jfs_umount+0x108/0x370 fs/jfs/jfs_umount.c:63\n  jfs_put_super+0x86/0x190 fs/jfs/super.c:194\n  generic_shutdown_super+0x130/0x310 fs/super.c:492\n  kill_block_super+0x79/0xd0 fs/super.c:1428\n  deactivate_locked_super+0xa7/0xf0 fs/super.c:332\n  cleanup_mnt+0x494/0x520 fs/namespace.c:1186\n  task_work_run+0x243/0x300 kernel/task_work.c:179\n  exit_task_work include/linux/task_work.h:38 [inline]\n  do_exit+0x664/0x2070 kernel/exit.c:820\n  do_group_exit+0x1fd/0x2b0 kernel/exit.c:950\n  __do_sys_exit_group kernel/exit.c:961 [inline]\n  __se_sys_exit_group kernel/exit.c:959 [inline]\n  __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959\n  do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n  do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[...]\n\nJFS_IP(ipimap)-\u003ei_imap is not setting to NULL after free in diUnmount.\nIf jfs_remount() free JFS_IP(ipimap)-\u003ei_imap but then failed at diMount().\nJFS_IP(ipimap)-\u003ei_imap will be freed once again.\nFix this problem by setting JFS_IP(ipimap)-\u003ei_imap to NULL after free."
    }
  ],
  "id": "CVE-2023-53616",
  "lastModified": "2026-08-04T10:19:14.780",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-10-04T16:15:58.460",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/114ea3cb13ab25f7178cb60283adb93d2f96dad7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/4de3a603010e0ca334487de24c6aab0777b7f808"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/6e2bda2c192d0244b5a78b787ef20aa10cb319b7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/756747d4b439e3e1159282ae89f17eefebbe9b25"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/88484bde6f12126616b38e43b6c00edcd941f615"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c3c0f0ddd851b3fa3e9d3450bbcd561f4f850469"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ef7311101ca43dd73b45bca7a30ac72d9535ff87"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-53616 (GCVE-0-2023-53616)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:44 – Updated: 2026-08-05 09:15

Title

jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7018 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/c3c0f0ddd851b3fa3…
https://git.kernel.org/stable/c/114ea3cb13ab25f71…
https://git.kernel.org/stable/c/5873df0195124be2f…
https://git.kernel.org/stable/c/756747d4b439e3e11…
https://git.kernel.org/stable/c/ef7311101ca43dd73…
https://git.kernel.org/stable/c/4de3a603010e0ca33…
https://git.kernel.org/stable/c/88484bde6f1212661…
https://git.kernel.org/stable/c/6e2bda2c192d0244b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c3c0f0ddd851b3fa3e9d3450bbcd561f4f850469 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 114ea3cb13ab25f7178cb60283adb93d2f96dad7 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5873df0195124be2f357de11bfd473ead4f90ed8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 756747d4b439e3e1159282ae89f17eefebbe9b25 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ef7311101ca43dd73b45bca7a30ac72d9535ff87 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4de3a603010e0ca334487de24c6aab0777b7f808 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 88484bde6f12126616b38e43b6c00edcd941f615 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6e2bda2c192d0244b5a78b787ef20aa10cb319b7 (git)
Linux	Linux	Affected: 2.6.12 Unaffected: 0 , < 2.6.12 (semver) Unaffected: 4.14.326 , ≤ 4.14.* (semver) Unaffected: 4.19.295 , ≤ 4.19.* (semver) Unaffected: 5.4.257 , ≤ 5.4.* (semver) Unaffected: 5.10.197 , ≤ 5.10.* (semver) Unaffected: 5.15.133 , ≤ 5.15.* (semver) Unaffected: 6.1.55 , ≤ 6.1.* (semver) Unaffected: 6.5.5 , ≤ 6.5.* (semver) Unaffected: 6.6 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/jfs/jfs_imap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c3c0f0ddd851b3fa3e9d3450bbcd561f4f850469",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "114ea3cb13ab25f7178cb60283adb93d2f96dad7",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "5873df0195124be2f357de11bfd473ead4f90ed8",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "756747d4b439e3e1159282ae89f17eefebbe9b25",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "ef7311101ca43dd73b45bca7a30ac72d9535ff87",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "4de3a603010e0ca334487de24c6aab0777b7f808",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "88484bde6f12126616b38e43b6c00edcd941f615",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "6e2bda2c192d0244b5a78b787ef20aa10cb319b7",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/jfs/jfs_imap.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.326",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.133",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.5.*",
              "status": "unaffected",
              "version": "6.5.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.326",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.295",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.257",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.197",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.133",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.55",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5.5",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: fix invalid free of JFS_IP(ipimap)-\u003ei_imap in diUnmount\n\nsyzbot found an invalid-free in diUnmount:\n\nBUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline]\nBUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674\nFree of addr ffff88806f410000 by task syz-executor131/3632\n\n CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\n Call Trace:\n  \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:88 [inline]\n  dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106\n  print_address_description+0x74/0x340 mm/kasan/report.c:284\n  print_report+0x107/0x1f0 mm/kasan/report.c:395\n  kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460\n  ____kasan_slab_free+0xfb/0x120\n  kasan_slab_free include/linux/kasan.h:177 [inline]\n  slab_free_hook mm/slub.c:1724 [inline]\n  slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750\n  slab_free mm/slub.c:3661 [inline]\n  __kmem_cache_free+0x71/0x110 mm/slub.c:3674\n  diUnmount+0xef/0x100 fs/jfs/jfs_imap.c:195\n  jfs_umount+0x108/0x370 fs/jfs/jfs_umount.c:63\n  jfs_put_super+0x86/0x190 fs/jfs/super.c:194\n  generic_shutdown_super+0x130/0x310 fs/super.c:492\n  kill_block_super+0x79/0xd0 fs/super.c:1428\n  deactivate_locked_super+0xa7/0xf0 fs/super.c:332\n  cleanup_mnt+0x494/0x520 fs/namespace.c:1186\n  task_work_run+0x243/0x300 kernel/task_work.c:179\n  exit_task_work include/linux/task_work.h:38 [inline]\n  do_exit+0x664/0x2070 kernel/exit.c:820\n  do_group_exit+0x1fd/0x2b0 kernel/exit.c:950\n  __do_sys_exit_group kernel/exit.c:961 [inline]\n  __se_sys_exit_group kernel/exit.c:959 [inline]\n  __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959\n  do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n  do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[...]\n\nJFS_IP(ipimap)-\u003ei_imap is not setting to NULL after free in diUnmount.\nIf jfs_remount() free JFS_IP(ipimap)-\u003ei_imap but then failed at diMount().\nJFS_IP(ipimap)-\u003ei_imap will be freed once again.\nFix this problem by setting JFS_IP(ipimap)-\u003ei_imap to NULL after free."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached through the mount/remount syscall path on a locally attached JFS volume (loop device, removable media, or a container/appliance image), with no network component.\nAC:L - The attacker controls both the on-disk image and the remount operation, and can make `diMount()`\u0027s `read_metapage()` fail deterministically (e.g. truncating the loop-backing file after mount) \u2014 no race and no uncontrollable memory-layout precondition.\nPR:L - Reaching the path needs mount/remount authority over the superblock rather than arbitrary root capability, and in practice this is delegated to low-privileged actors via removable-media automount, loop-mounted user images, and container/appliance mount helpers.\nUI:N - The same actor supplies the image, mounts it, performs the failing ro\u2192rw remount, and triggers the second free at unmount; no separate victim action is required.\nS:U - The corruption stays within the kernel\u0027s own security authority \u2014 there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The dangling `i_imap` yields a live use-after-free on a kmalloc-8k object that the attacker can reclaim via heap spray, and `diSync()` writes the freed object\u0027s contents back to the on-disk imap page, disclosing reclaimed kernel heap memory the attacker can read directly off the block device.\nI:H - A double free of a large SLUB object gives freelist corruption and type confusion (two live allocations aliasing one object), and the still-mounted read-write filesystem writes attacker-influenced counters and mutex state into the freed memory \u2014 an arbitrary-write primitive suitable for control-flow hijack.\nA:H - The immediate observed effect is a KASAN-reported invalid free leading to slab freelist corruption and kernel oops/panic, reproducible on demand."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:15:09.391Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c3c0f0ddd851b3fa3e9d3450bbcd561f4f850469"
        },
        {
          "url": "https://git.kernel.org/stable/c/114ea3cb13ab25f7178cb60283adb93d2f96dad7"
        },
        {
          "url": "https://git.kernel.org/stable/c/5873df0195124be2f357de11bfd473ead4f90ed8"
        },
        {
          "url": "https://git.kernel.org/stable/c/756747d4b439e3e1159282ae89f17eefebbe9b25"
        },
        {
          "url": "https://git.kernel.org/stable/c/ef7311101ca43dd73b45bca7a30ac72d9535ff87"
        },
        {
          "url": "https://git.kernel.org/stable/c/4de3a603010e0ca334487de24c6aab0777b7f808"
        },
        {
          "url": "https://git.kernel.org/stable/c/88484bde6f12126616b38e43b6c00edcd941f615"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e2bda2c192d0244b5a78b787ef20aa10cb319b7"
        }
      ],
      "title": "jfs: fix invalid free of JFS_IP(ipimap)-\u003ei_imap in diUnmount",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53616",
    "datePublished": "2025-10-04T15:44:23.056Z",
    "dateReserved": "2025-10-04T15:40:38.481Z",
    "dateUpdated": "2026-08-05T09:15:09.391Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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