cve-2023-52848
Vulnerability from cvelistv5
Published
2024-05-21 15:31
Modified
2024-12-19 08:27
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to drop meta_inode's page cache in f2fs_put_super() syzbot reports a kernel bug as below: F2FS-fs (loop1): detect filesystem reference count leak during umount, type: 10, count: 1 kernel BUG at fs/f2fs/super.c:1639! CPU: 0 PID: 15451 Comm: syz-executor.1 Not tainted 6.5.0-syzkaller-09338-ge0152e7481c6 #0 RIP: 0010:f2fs_put_super+0xce1/0xed0 fs/f2fs/super.c:1639 Call Trace: 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 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] 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 In f2fs_put_super(), it tries to do sanity check on dirty and IO reference count of f2fs, once there is any reference count leak, it will trigger panic. The root case is, during f2fs_put_super(), if there is any IO error in f2fs_wait_on_all_pages(), we missed to truncate meta_inode's page cache later, result in panic, fix this case.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fadPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fadPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192Patch
Impacted products
Vendor Product Version
Linux Linux Version: 20872584b8c0b006c007da9588a272c9e28d2e18
Version: 20872584b8c0b006c007da9588a272c9e28d2e18
Version: 20872584b8c0b006c007da9588a272c9e28d2e18
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   Linux Linux Version: 6.5
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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\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.4.16\",\"versionEndExcluding\":\"6.5.12\",\"matchCriteriaId\":\"87C16A4D-F50C-48AD-A389-36C557A9EEC7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6\",\"versionEndExcluding\":\"6.6.2\",\"matchCriteriaId\":\"4CBFF885-A4D3-4F21-B6FD-4D770034C048\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/10b2a6c0dade67b5a2b2d17fb75c457ea1985fad\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a4639380bbe66172df329f8b54aa7d2e943f0f64\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/eb42e1862aa7934c2c21890097ce4993c5e0d192\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2023-52848\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-02T23:11:35.923Z\", \"dateReserved\": \"2024-05-21T15:19:24.255Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:31:45.196Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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