github - ghsa-83fq-277g-4r9j

GHSA-83FQ-277G-4R9J

Vulnerability from github – Published: 2025-12-24 15:30 – Updated: 2025-12-24 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix to do sanity check on summary info

As Wenqing Liu reported in bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=216456

BUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs] Read of size 4 at addr ffff8881464dcd80 by task mount/1013

CPU: 3 PID: 1013 Comm: mount Tainted: G W 6.0.0-rc4 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 Call Trace: dump_stack_lvl+0x45/0x5e print_report.cold+0xf3/0x68d kasan_report+0xa8/0x130 recover_data+0x63ae/0x6ae0 [f2fs] f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs] f2fs_fill_super+0x4665/0x61e0 [f2fs] mount_bdev+0x2cf/0x3b0 legacy_get_tree+0xed/0x1d0 vfs_get_tree+0x81/0x2b0 path_mount+0x47e/0x19d0 do_mount+0xce/0xf0 __x64_sys_mount+0x12c/0x1a0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd

The root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node is larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size page.

recover_data
do_recover_data
check_index_in_prev_nodes
f2fs_data_blkaddr

This patch adds sanity check on summary info in recovery and GC flow in where the flows rely on them.

After patch: [ 29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50753"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T13:16:02Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on summary info\n\nAs Wenqing Liu reported in bugzilla:\n\nhttps://bugzilla.kernel.org/show_bug.cgi?id=216456\n\nBUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs]\nRead of size 4 at addr ffff8881464dcd80 by task mount/1013\n\nCPU: 3 PID: 1013 Comm: mount Tainted: G        W          6.0.0-rc4 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n dump_stack_lvl+0x45/0x5e\n print_report.cold+0xf3/0x68d\n kasan_report+0xa8/0x130\n recover_data+0x63ae/0x6ae0 [f2fs]\n f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]\n f2fs_fill_super+0x4665/0x61e0 [f2fs]\n mount_bdev+0x2cf/0x3b0\n legacy_get_tree+0xed/0x1d0\n vfs_get_tree+0x81/0x2b0\n path_mount+0x47e/0x19d0\n do_mount+0xce/0xf0\n __x64_sys_mount+0x12c/0x1a0\n do_syscall_64+0x38/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node\nis larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size\npage.\n\n- recover_data\n - do_recover_data\n  - check_index_in_prev_nodes\n   - f2fs_data_blkaddr\n\nThis patch adds sanity check on summary info in recovery and GC flow\nin where the flows rely on them.\n\nAfter patch:\n[   29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018",
  "id": "GHSA-83fq-277g-4r9j",
  "modified": "2025-12-24T15:30:34Z",
  "published": "2025-12-24T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50753"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0922ad64ccefa3e483e84355942b86e13c8fea68"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a8e8bf280703e04e0b9d91f101e1fdd9a5bd09e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/73687c53919f49dff3852155621dab7a35c52854"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6ad7fd16657ebd34a87a97d9588195aae87597d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c99860f9a75079f339ed7670425b1ac58f26e2ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e168f819bfa42459b14f479e55ebd550bcc78899"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2022-50753 (GCVE-0-2022-50753)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:05 – Updated: 2025-12-24 13:05

Title

f2fs: fix to do sanity check on summary info

Summary

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on summary info As Wenqing Liu reported in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216456 BUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs] Read of size 4 at addr ffff8881464dcd80 by task mount/1013 CPU: 3 PID: 1013 Comm: mount Tainted: G W 6.0.0-rc4 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 Call Trace: dump_stack_lvl+0x45/0x5e print_report.cold+0xf3/0x68d kasan_report+0xa8/0x130 recover_data+0x63ae/0x6ae0 [f2fs] f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs] f2fs_fill_super+0x4665/0x61e0 [f2fs] mount_bdev+0x2cf/0x3b0 legacy_get_tree+0xed/0x1d0 vfs_get_tree+0x81/0x2b0 path_mount+0x47e/0x19d0 do_mount+0xce/0xf0 __x64_sys_mount+0x12c/0x1a0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node is larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size page. - recover_data - do_recover_data - check_index_in_prev_nodes - f2fs_data_blkaddr This patch adds sanity check on summary info in recovery and GC flow in where the flows rely on them. After patch: [ 29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c99860f9a75079f33…
	https://git.kernel.org/stable/c/4a8e8bf280703e04e…
	https://git.kernel.org/stable/c/73687c53919f49dff…
	https://git.kernel.org/stable/c/e168f819bfa42459b…
	https://git.kernel.org/stable/c/0922ad64ccefa3e48…
	https://git.kernel.org/stable/c/c6ad7fd16657ebd34…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c99860f9a75079f339ed7670425b1ac58f26e2ff (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4a8e8bf280703e04e0b9d91f101e1fdd9a5bd09e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 73687c53919f49dff3852155621dab7a35c52854 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e168f819bfa42459b14f479e55ebd550bcc78899 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0922ad64ccefa3e483e84355942b86e13c8fea68 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c6ad7fd16657ebd34a87a97d9588195aae87597d (git)

Linux

Unaffected: 5.4.220 , ≤ 5.4.* (semver)
Unaffected: 5.10.150 , ≤ 5.10.* (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "fs/f2fs/gc.c",
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c99860f9a75079f339ed7670425b1ac58f26e2ff",
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              "versionType": "git"
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
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              "status": "unaffected",
              "version": "5.10.150",
              "versionType": "semver"
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            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
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                  "versionEndExcluding": "5.4.220",
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                  "versionEndExcluding": "6.0.3",
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              "operator": "OR"
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to do sanity check on summary info\n\nAs Wenqing Liu reported in bugzilla:\n\nhttps://bugzilla.kernel.org/show_bug.cgi?id=216456\n\nBUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs]\nRead of size 4 at addr ffff8881464dcd80 by task mount/1013\n\nCPU: 3 PID: 1013 Comm: mount Tainted: G        W          6.0.0-rc4 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n dump_stack_lvl+0x45/0x5e\n print_report.cold+0xf3/0x68d\n kasan_report+0xa8/0x130\n recover_data+0x63ae/0x6ae0 [f2fs]\n f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs]\n f2fs_fill_super+0x4665/0x61e0 [f2fs]\n mount_bdev+0x2cf/0x3b0\n legacy_get_tree+0xed/0x1d0\n vfs_get_tree+0x81/0x2b0\n path_mount+0x47e/0x19d0\n do_mount+0xce/0xf0\n __x64_sys_mount+0x12c/0x1a0\n do_syscall_64+0x38/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node\nis larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size\npage.\n\n- recover_data\n - do_recover_data\n  - check_index_in_prev_nodes\n   - f2fs_data_blkaddr\n\nThis patch adds sanity check on summary info in recovery and GC flow\nin where the flows rely on them.\n\nAfter patch:\n[   29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018"
        }
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        {
          "url": "https://git.kernel.org/stable/c/c6ad7fd16657ebd34a87a97d9588195aae87597d"
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      "title": "f2fs: fix to do sanity check on summary info",
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}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-83FQ-277G-4R9J

CVE-2022-50753 (GCVE-0-2022-50753)

Tags

Sightings

Nomenclature