cve-2023-52848
Vulnerability from cvelistv5
Published
2024-05-21 15:31
Modified
2024-11-04 14:53
Severity ?
Summary
f2fs: fix to drop meta_inode's page cache in f2fs_put_super()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fad
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192
Impacted products
Vendor Product Version
Linux Linux Version: 6.5
Show details on NVD website

To clipboard 

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                "id": "CVE-2023-52848",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-21T17:54:45.651350Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:11:35.923Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/super.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "vendor": "Linux",
          "versions": [
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to drop meta_inode\u0027s page cache in f2fs_put_super()\n\nsyzbot reports a kernel bug as below:\n\nF2FS-fs (loop1): detect filesystem reference count leak during umount, type: 10, count: 1\nkernel BUG at fs/f2fs/super.c:1639!\nCPU: 0 PID: 15451 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-09338-ge0152e7481c6 #0\nRIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639\nCall Trace:\n generic_shutdown_super+0x161/0x3c0 fs/super.c:693\n kill_block_super+0x3b/0x70 fs/super.c:1646\n kill_f2fs_super+0x2b7/0x3d0 fs/f2fs/super.c:4879\n deactivate_locked_super+0x9a/0x170 fs/super.c:481\n deactivate_super+0xde/0x100 fs/super.c:514\n cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254\n task_work_run+0x14d/0x240 kernel/task_work.c:179\n resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]\n exit_to_user_mode_loop kernel/entry/common.c:171 [inline]\n exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204\n __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]\n syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296\n do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nIn f2fs_put_super(), it tries to do sanity check on dirty and IO\nreference count of f2fs, once there is any reference count leak,\nit will trigger panic.\n\nThe root case is, during f2fs_put_super(), if there is any IO error\nin f2fs_wait_on_all_pages(), we missed to truncate meta_inode\u0027s page\ncache later, result in panic, fix this case."
        }
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      "providerMetadata": {
        "dateUpdated": "2024-11-04T14:53:48.202Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192"
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          "url": "https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fad"
        },
        {
          "url": "https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64"
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      ],
      "title": "f2fs: fix to drop meta_inode\u0027s page cache in f2fs_put_super()",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52848",
    "datePublished": "2024-05-21T15:31:45.196Z",
    "dateReserved": "2024-05-21T15:19:24.255Z",
    "dateUpdated": "2024-11-04T14:53:48.202Z",
    "state": "PUBLISHED"
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  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52848\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T16:15:21.947\",\"lastModified\":\"2024-05-21T16:53:56.550\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nf2fs: fix to drop meta_inode\u0027s page cache in f2fs_put_super()\\n\\nsyzbot reports a kernel bug as below:\\n\\nF2FS-fs (loop1): detect filesystem reference count leak during umount, type: 10, count: 1\\nkernel BUG at fs/f2fs/super.c:1639!\\nCPU: 0 PID: 15451 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-09338-ge0152e7481c6 #0\\nRIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639\\nCall Trace:\\n generic_shutdown_super+0x161/0x3c0 fs/super.c:693\\n kill_block_super+0x3b/0x70 fs/super.c:1646\\n kill_f2fs_super+0x2b7/0x3d0 fs/f2fs/super.c:4879\\n deactivate_locked_super+0x9a/0x170 fs/super.c:481\\n deactivate_super+0xde/0x100 fs/super.c:514\\n cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254\\n task_work_run+0x14d/0x240 kernel/task_work.c:179\\n resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]\\n exit_to_user_mode_loop kernel/entry/common.c:171 [inline]\\n exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204\\n __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]\\n syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296\\n do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86\\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nIn f2fs_put_super(), it tries to do sanity check on dirty and IO\\nreference count of f2fs, once there is any reference count leak,\\nit will trigger panic.\\n\\nThe root case is, during f2fs_put_super(), if there is any IO error\\nin f2fs_wait_on_all_pages(), we missed to truncate meta_inode\u0027s page\\ncache later, result in panic, fix this case.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: f2fs: correcci\u00f3n para eliminar el cach\u00e9 de la p\u00e1gina de meta_inode en f2fs_put_super() syzbot informa un error en el kernel como se muestra a continuaci\u00f3n: F2FS-fs (loop1): detecta p\u00e9rdida del recuento de referencias del sistema de archivos durante el desmontaje, escriba: 10 , recuento: \u00a11 BUG del kernel en fs/f2fs/super.c:1639! CPU: 0 PID: 15451 Comm: syz-executor.1 No contaminado 6.5.0-syzkaller-09338-ge0152e7481c6 #0 RIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639 Seguimiento de llamadas: generic_shutdown_super+0x161 /0x3c0 fs/super.c:693 kill_block_super+0x3b/0x70 fs/super.c:1646 kill_f2fs_super+0x2b7/0x3d0 fs/f2fs/super.c:4879 deactivate_locked_super+0x9a/0x170 fs/super.c:481 deactivate_super+0xde /0x100 fs/super.c:514 cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254 task_work_run+0x14d/0x240 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [en l\u00ednea] exit_to_user_mode_loop kernel/entry /common.c:171 [en l\u00ednea] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [en l\u00ednea] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 Entry_SYSCALL_64_after_hwframe+0x63/0xcd En f2fs_put_super(), intenta realizar una verificaci\u00f3n de cordura en el recuento de referencias sucias y de IO de f2fs, una vez que hay alguna fuga en el recuento de referencias, provocar\u00e1 p\u00e1nico. El caso ra\u00edz es que, durante f2fs_put_super(), si hay alg\u00fan error de IO en f2fs_wait_on_all_pages(), no pudimos truncar el cach\u00e9 de la p\u00e1gina de meta_inode m\u00e1s tarde, lo que gener\u00f3 p\u00e1nico, solucionemos este caso.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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