CVE-2023-53865 (GCVE-0-2023-53865)
Vulnerability from cvelistv5
Published
2025-12-09 01:30
Modified
2025-12-09 01:30
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix warning when putting transaction with qgroups enabled after abort If we have a transaction abort with qgroups enabled we get a warning triggered when doing the final put on the transaction, like this: [552.6789] ------------[ cut here ]------------ [552.6815] WARNING: CPU: 4 PID: 81745 at fs/btrfs/transaction.c:144 btrfs_put_transaction+0x123/0x130 [btrfs] [552.6817] Modules linked in: btrfs blake2b_generic xor (...) [552.6819] CPU: 4 PID: 81745 Comm: btrfs-transacti Tainted: G W 6.4.0-rc6-btrfs-next-134+ #1 [552.6819] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014 [552.6819] RIP: 0010:btrfs_put_transaction+0x123/0x130 [btrfs] [552.6821] Code: bd a0 01 00 (...) [552.6821] RSP: 0018:ffffa168c0527e28 EFLAGS: 00010286 [552.6821] RAX: ffff936042caed00 RBX: ffff93604a3eb448 RCX: 0000000000000000 [552.6821] RDX: ffff93606421b028 RSI: ffffffff92ff0878 RDI: ffff93606421b010 [552.6821] RBP: ffff93606421b000 R08: 0000000000000000 R09: ffffa168c0d07c20 [552.6821] R10: 0000000000000000 R11: ffff93608dc52950 R12: ffffa168c0527e70 [552.6821] R13: ffff93606421b000 R14: ffff93604a3eb420 R15: ffff93606421b028 [552.6821] FS: 0000000000000000(0000) GS:ffff93675fb00000(0000) knlGS:0000000000000000 [552.6821] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [552.6821] CR2: 0000558ad262b000 CR3: 000000014feda005 CR4: 0000000000370ee0 [552.6822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [552.6822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [552.6822] Call Trace: [552.6822] <TASK> [552.6822] ? __warn+0x80/0x130 [552.6822] ? btrfs_put_transaction+0x123/0x130 [btrfs] [552.6824] ? report_bug+0x1f4/0x200 [552.6824] ? handle_bug+0x42/0x70 [552.6824] ? exc_invalid_op+0x14/0x70 [552.6824] ? asm_exc_invalid_op+0x16/0x20 [552.6824] ? btrfs_put_transaction+0x123/0x130 [btrfs] [552.6826] btrfs_cleanup_transaction+0xe7/0x5e0 [btrfs] [552.6828] ? _raw_spin_unlock_irqrestore+0x23/0x40 [552.6828] ? try_to_wake_up+0x94/0x5e0 [552.6828] ? __pfx_process_timeout+0x10/0x10 [552.6828] transaction_kthread+0x103/0x1d0 [btrfs] [552.6830] ? __pfx_transaction_kthread+0x10/0x10 [btrfs] [552.6832] kthread+0xee/0x120 [552.6832] ? __pfx_kthread+0x10/0x10 [552.6832] ret_from_fork+0x29/0x50 [552.6832] </TASK> [552.6832] ---[ end trace 0000000000000000 ]--- This corresponds to this line of code: void btrfs_put_transaction(struct btrfs_transaction *transaction) { (...) WARN_ON(!RB_EMPTY_ROOT( &transaction->delayed_refs.dirty_extent_root)); (...) } The warning happens because btrfs_qgroup_destroy_extent_records(), called in the transaction abort path, we free all entries from the rbtree "dirty_extent_root" with rbtree_postorder_for_each_entry_safe(), but we don't actually empty the rbtree - it's still pointing to nodes that were freed. So set the rbtree's root node to NULL to avoid this warning (assign RB_ROOT).
References
Impacted products
Vendor Product Version
Linux Linux Version: 40ea30638d20c92b44107247415842b72c460459
Version: 81f7eb00ff5bb8326e82503a32809421d14abb8a
Version: 81f7eb00ff5bb8326e82503a32809421d14abb8a
Version: 81f7eb00ff5bb8326e82503a32809421d14abb8a
Version: 81f7eb00ff5bb8326e82503a32809421d14abb8a
Version: 81f7eb00ff5bb8326e82503a32809421d14abb8a
Version: 4e2e49d4211db43e0ec932579dab6a969e7e8df1
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/qgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "status": "affected",
              "version": "81f7eb00ff5bb8326e82503a32809421d14abb8a",
              "versionType": "git"
            },
            {
              "lessThan": "aa84ce8a78a1a5c10cdf9c7a5fb0c999fbc2c8d6",
              "status": "affected",
              "version": "81f7eb00ff5bb8326e82503a32809421d14abb8a",
              "versionType": "git"
            },
            {
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              "version": "4e2e49d4211db43e0ec932579dab6a969e7e8df1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/qgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.6"
            },
            {
              "lessThan": "5.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.251",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.188",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.123",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.251",
                  "versionStartIncluding": "5.4.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.188",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.123",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.42",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.4.7",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "5.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.5.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix warning when putting transaction with qgroups enabled after abort\n\nIf we have a transaction abort with qgroups enabled we get a warning\ntriggered when doing the final put on the transaction, like this:\n\n  [552.6789] ------------[ cut here ]------------\n  [552.6815] WARNING: CPU: 4 PID: 81745 at fs/btrfs/transaction.c:144 btrfs_put_transaction+0x123/0x130 [btrfs]\n  [552.6817] Modules linked in: btrfs blake2b_generic xor (...)\n  [552.6819] CPU: 4 PID: 81745 Comm: btrfs-transacti Tainted: G        W          6.4.0-rc6-btrfs-next-134+ #1\n  [552.6819] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014\n  [552.6819] RIP: 0010:btrfs_put_transaction+0x123/0x130 [btrfs]\n  [552.6821] Code: bd a0 01 00 (...)\n  [552.6821] RSP: 0018:ffffa168c0527e28 EFLAGS: 00010286\n  [552.6821] RAX: ffff936042caed00 RBX: ffff93604a3eb448 RCX: 0000000000000000\n  [552.6821] RDX: ffff93606421b028 RSI: ffffffff92ff0878 RDI: ffff93606421b010\n  [552.6821] RBP: ffff93606421b000 R08: 0000000000000000 R09: ffffa168c0d07c20\n  [552.6821] R10: 0000000000000000 R11: ffff93608dc52950 R12: ffffa168c0527e70\n  [552.6821] R13: ffff93606421b000 R14: ffff93604a3eb420 R15: ffff93606421b028\n  [552.6821] FS:  0000000000000000(0000) GS:ffff93675fb00000(0000) knlGS:0000000000000000\n  [552.6821] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  [552.6821] CR2: 0000558ad262b000 CR3: 000000014feda005 CR4: 0000000000370ee0\n  [552.6822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n  [552.6822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n  [552.6822] Call Trace:\n  [552.6822]  \u003cTASK\u003e\n  [552.6822]  ? __warn+0x80/0x130\n  [552.6822]  ? btrfs_put_transaction+0x123/0x130 [btrfs]\n  [552.6824]  ? report_bug+0x1f4/0x200\n  [552.6824]  ? handle_bug+0x42/0x70\n  [552.6824]  ? exc_invalid_op+0x14/0x70\n  [552.6824]  ? asm_exc_invalid_op+0x16/0x20\n  [552.6824]  ? btrfs_put_transaction+0x123/0x130 [btrfs]\n  [552.6826]  btrfs_cleanup_transaction+0xe7/0x5e0 [btrfs]\n  [552.6828]  ? _raw_spin_unlock_irqrestore+0x23/0x40\n  [552.6828]  ? try_to_wake_up+0x94/0x5e0\n  [552.6828]  ? __pfx_process_timeout+0x10/0x10\n  [552.6828]  transaction_kthread+0x103/0x1d0 [btrfs]\n  [552.6830]  ? __pfx_transaction_kthread+0x10/0x10 [btrfs]\n  [552.6832]  kthread+0xee/0x120\n  [552.6832]  ? __pfx_kthread+0x10/0x10\n  [552.6832]  ret_from_fork+0x29/0x50\n  [552.6832]  \u003c/TASK\u003e\n  [552.6832] ---[ end trace 0000000000000000 ]---\n\nThis corresponds to this line of code:\n\n  void btrfs_put_transaction(struct btrfs_transaction *transaction)\n  {\n      (...)\n          WARN_ON(!RB_EMPTY_ROOT(\n                          \u0026transaction-\u003edelayed_refs.dirty_extent_root));\n      (...)\n  }\n\nThe warning happens because btrfs_qgroup_destroy_extent_records(), called\nin the transaction abort path, we free all entries from the rbtree\n\"dirty_extent_root\" with rbtree_postorder_for_each_entry_safe(), but we\ndon\u0027t actually empty the rbtree - it\u0027s still pointing to nodes that were\nfreed.\n\nSo set the rbtree\u0027s root node to NULL to avoid this warning (assign\nRB_ROOT)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T01:30:34.588Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ae91ab710d8e309f6c9eba07ce0d9d0b5d9040f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/d2c667cc18314c9bad3ec86ae071c0342132aa09"
        },
        {
          "url": "https://git.kernel.org/stable/c/c9060caab4135dd660c4676d1ea33a6e0d3fc09d"
        },
        {
          "url": "https://git.kernel.org/stable/c/89e994688e965813ec0a09fb30b87fb8cee06474"
        },
        {
          "url": "https://git.kernel.org/stable/c/62dd82bc7a90b5052c062a0ad5be6d8a479a3cfb"
        },
        {
          "url": "https://git.kernel.org/stable/c/aa84ce8a78a1a5c10cdf9c7a5fb0c999fbc2c8d6"
        }
      ],
      "title": "btrfs: fix warning when putting transaction with qgroups enabled after abort",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53865",
    "datePublished": "2025-12-09T01:30:34.588Z",
    "dateReserved": "2025-12-09T01:27:17.829Z",
    "dateUpdated": "2025-12-09T01:30:34.588Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53865\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-09T16:17:27.413\",\"lastModified\":\"2025-12-09T18:37:13.640\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: fix warning when putting transaction with qgroups enabled after abort\\n\\nIf we have a transaction abort with qgroups enabled we get a warning\\ntriggered when doing the final put on the transaction, like this:\\n\\n  [552.6789] ------------[ cut here ]------------\\n  [552.6815] WARNING: CPU: 4 PID: 81745 at fs/btrfs/transaction.c:144 btrfs_put_transaction+0x123/0x130 [btrfs]\\n  [552.6817] Modules linked in: btrfs blake2b_generic xor (...)\\n  [552.6819] CPU: 4 PID: 81745 Comm: btrfs-transacti Tainted: G        W          6.4.0-rc6-btrfs-next-134+ #1\\n  [552.6819] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014\\n  [552.6819] RIP: 0010:btrfs_put_transaction+0x123/0x130 [btrfs]\\n  [552.6821] Code: bd a0 01 00 (...)\\n  [552.6821] RSP: 0018:ffffa168c0527e28 EFLAGS: 00010286\\n  [552.6821] RAX: ffff936042caed00 RBX: ffff93604a3eb448 RCX: 0000000000000000\\n  [552.6821] RDX: ffff93606421b028 RSI: ffffffff92ff0878 RDI: ffff93606421b010\\n  [552.6821] RBP: ffff93606421b000 R08: 0000000000000000 R09: ffffa168c0d07c20\\n  [552.6821] R10: 0000000000000000 R11: ffff93608dc52950 R12: ffffa168c0527e70\\n  [552.6821] R13: ffff93606421b000 R14: ffff93604a3eb420 R15: ffff93606421b028\\n  [552.6821] FS:  0000000000000000(0000) GS:ffff93675fb00000(0000) knlGS:0000000000000000\\n  [552.6821] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n  [552.6821] CR2: 0000558ad262b000 CR3: 000000014feda005 CR4: 0000000000370ee0\\n  [552.6822] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n  [552.6822] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n  [552.6822] Call Trace:\\n  [552.6822]  \u003cTASK\u003e\\n  [552.6822]  ? __warn+0x80/0x130\\n  [552.6822]  ? btrfs_put_transaction+0x123/0x130 [btrfs]\\n  [552.6824]  ? report_bug+0x1f4/0x200\\n  [552.6824]  ? handle_bug+0x42/0x70\\n  [552.6824]  ? exc_invalid_op+0x14/0x70\\n  [552.6824]  ? asm_exc_invalid_op+0x16/0x20\\n  [552.6824]  ? btrfs_put_transaction+0x123/0x130 [btrfs]\\n  [552.6826]  btrfs_cleanup_transaction+0xe7/0x5e0 [btrfs]\\n  [552.6828]  ? _raw_spin_unlock_irqrestore+0x23/0x40\\n  [552.6828]  ? try_to_wake_up+0x94/0x5e0\\n  [552.6828]  ? __pfx_process_timeout+0x10/0x10\\n  [552.6828]  transaction_kthread+0x103/0x1d0 [btrfs]\\n  [552.6830]  ? __pfx_transaction_kthread+0x10/0x10 [btrfs]\\n  [552.6832]  kthread+0xee/0x120\\n  [552.6832]  ? __pfx_kthread+0x10/0x10\\n  [552.6832]  ret_from_fork+0x29/0x50\\n  [552.6832]  \u003c/TASK\u003e\\n  [552.6832] ---[ end trace 0000000000000000 ]---\\n\\nThis corresponds to this line of code:\\n\\n  void btrfs_put_transaction(struct btrfs_transaction *transaction)\\n  {\\n      (...)\\n          WARN_ON(!RB_EMPTY_ROOT(\\n                          \u0026transaction-\u003edelayed_refs.dirty_extent_root));\\n      (...)\\n  }\\n\\nThe warning happens because btrfs_qgroup_destroy_extent_records(), called\\nin the transaction abort path, we free all entries from the rbtree\\n\\\"dirty_extent_root\\\" with rbtree_postorder_for_each_entry_safe(), but we\\ndon\u0027t actually empty the rbtree - it\u0027s still pointing to nodes that were\\nfreed.\\n\\nSo set the rbtree\u0027s root node to NULL to avoid this warning (assign\\nRB_ROOT).\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/62dd82bc7a90b5052c062a0ad5be6d8a479a3cfb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/89e994688e965813ec0a09fb30b87fb8cee06474\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/aa84ce8a78a1a5c10cdf9c7a5fb0c999fbc2c8d6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ae91ab710d8e309f6c9eba07ce0d9d0b5d9040f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c9060caab4135dd660c4676d1ea33a6e0d3fc09d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d2c667cc18314c9bad3ec86ae071c0342132aa09\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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