CVE-2022-48923 (GCVE-0-2022-48923)

Vulnerability from cvelistv5 – Published: 2024-08-22 01:32 – Updated: 2025-05-21 08:44
VLAI?
Title
btrfs: prevent copying too big compressed lzo segment
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: prevent copying too big compressed lzo segment Compressed length can be corrupted to be a lot larger than memory we have allocated for buffer. This will cause memcpy in copy_compressed_segment to write outside of allocated memory. This mostly results in stuck read syscall but sometimes when using btrfs send can get #GP kernel: general protection fault, probably for non-canonical address 0x841551d5c1000: 0000 [#1] PREEMPT SMP NOPTI kernel: CPU: 17 PID: 264 Comm: kworker/u256:7 Tainted: P OE 5.17.0-rc2-1 #12 kernel: Workqueue: btrfs-endio btrfs_work_helper [btrfs] kernel: RIP: 0010:lzo_decompress_bio (./include/linux/fortify-string.h:225 fs/btrfs/lzo.c:322 fs/btrfs/lzo.c:394) btrfs Code starting with the faulting instruction =========================================== 0:* 48 8b 06 mov (%rsi),%rax <-- trapping instruction 3: 48 8d 79 08 lea 0x8(%rcx),%rdi 7: 48 83 e7 f8 and $0xfffffffffffffff8,%rdi b: 48 89 01 mov %rax,(%rcx) e: 44 89 f0 mov %r14d,%eax 11: 48 8b 54 06 f8 mov -0x8(%rsi,%rax,1),%rdx kernel: RSP: 0018:ffffb110812efd50 EFLAGS: 00010212 kernel: RAX: 0000000000001000 RBX: 000000009ca264c8 RCX: ffff98996e6d8ff8 kernel: RDX: 0000000000000064 RSI: 000841551d5c1000 RDI: ffffffff9500435d kernel: RBP: ffff989a3be856c0 R08: 0000000000000000 R09: 0000000000000000 kernel: R10: 0000000000000000 R11: 0000000000001000 R12: ffff98996e6d8000 kernel: R13: 0000000000000008 R14: 0000000000001000 R15: 000841551d5c1000 kernel: FS: 0000000000000000(0000) GS:ffff98a09d640000(0000) knlGS:0000000000000000 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kernel: CR2: 00001e9f984d9ea8 CR3: 000000014971a000 CR4: 00000000003506e0 kernel: Call Trace: kernel: <TASK> kernel: end_compressed_bio_read (fs/btrfs/compression.c:104 fs/btrfs/compression.c:1363 fs/btrfs/compression.c:323) btrfs kernel: end_workqueue_fn (fs/btrfs/disk-io.c:1923) btrfs kernel: btrfs_work_helper (fs/btrfs/async-thread.c:326) btrfs kernel: process_one_work (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:212 ./include/trace/events/workqueue.h:108 kernel/workqueue.c:2312) kernel: worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2455) kernel: ? process_one_work (kernel/workqueue.c:2397) kernel: kthread (kernel/kthread.c:377) kernel: ? kthread_complete_and_exit (kernel/kthread.c:332) kernel: ret_from_fork (arch/x86/entry/entry_64.S:301) kernel: </TASK>
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a6e66e6f8c1b685e11b778bef614480a9c1a5278 , < 8df508b7a44cd8110c726057cd28e8f8116885eb (git)
Affected: a6e66e6f8c1b685e11b778bef614480a9c1a5278 , < e326bd06cdde46df952361456232022298281d16 (git)
Affected: a6e66e6f8c1b685e11b778bef614480a9c1a5278 , < 741b23a970a79d5d3a1db2d64fa2c7b375a4febb (git)
Create a notification for this product.
    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.26 , ≤ 5.15.* (semver)
Unaffected: 5.16.12 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-48923",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:33:22.056264Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:00.797Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/lzo.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8df508b7a44cd8110c726057cd28e8f8116885eb",
              "status": "affected",
              "version": "a6e66e6f8c1b685e11b778bef614480a9c1a5278",
              "versionType": "git"
            },
            {
              "lessThan": "e326bd06cdde46df952361456232022298281d16",
              "status": "affected",
              "version": "a6e66e6f8c1b685e11b778bef614480a9c1a5278",
              "versionType": "git"
            },
            {
              "lessThan": "741b23a970a79d5d3a1db2d64fa2c7b375a4febb",
              "status": "affected",
              "version": "a6e66e6f8c1b685e11b778bef614480a9c1a5278",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/lzo.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.26",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.26",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.12",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: prevent copying too big compressed lzo segment\n\nCompressed length can be corrupted to be a lot larger than memory\nwe have allocated for buffer.\nThis will cause memcpy in copy_compressed_segment to write outside\nof allocated memory.\n\nThis mostly results in stuck read syscall but sometimes when using\nbtrfs send can get #GP\n\n  kernel: general protection fault, probably for non-canonical address 0x841551d5c1000: 0000 [#1] PREEMPT SMP NOPTI\n  kernel: CPU: 17 PID: 264 Comm: kworker/u256:7 Tainted: P           OE     5.17.0-rc2-1 #12\n  kernel: Workqueue: btrfs-endio btrfs_work_helper [btrfs]\n  kernel: RIP: 0010:lzo_decompress_bio (./include/linux/fortify-string.h:225 fs/btrfs/lzo.c:322 fs/btrfs/lzo.c:394) btrfs\n  Code starting with the faulting instruction\n  ===========================================\n     0:*  48 8b 06                mov    (%rsi),%rax              \u003c-- trapping instruction\n     3:   48 8d 79 08             lea    0x8(%rcx),%rdi\n     7:   48 83 e7 f8             and    $0xfffffffffffffff8,%rdi\n     b:   48 89 01                mov    %rax,(%rcx)\n     e:   44 89 f0                mov    %r14d,%eax\n    11:   48 8b 54 06 f8          mov    -0x8(%rsi,%rax,1),%rdx\n  kernel: RSP: 0018:ffffb110812efd50 EFLAGS: 00010212\n  kernel: RAX: 0000000000001000 RBX: 000000009ca264c8 RCX: ffff98996e6d8ff8\n  kernel: RDX: 0000000000000064 RSI: 000841551d5c1000 RDI: ffffffff9500435d\n  kernel: RBP: ffff989a3be856c0 R08: 0000000000000000 R09: 0000000000000000\n  kernel: R10: 0000000000000000 R11: 0000000000001000 R12: ffff98996e6d8000\n  kernel: R13: 0000000000000008 R14: 0000000000001000 R15: 000841551d5c1000\n  kernel: FS:  0000000000000000(0000) GS:ffff98a09d640000(0000) knlGS:0000000000000000\n  kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  kernel: CR2: 00001e9f984d9ea8 CR3: 000000014971a000 CR4: 00000000003506e0\n  kernel: Call Trace:\n  kernel:  \u003cTASK\u003e\n  kernel: end_compressed_bio_read (fs/btrfs/compression.c:104 fs/btrfs/compression.c:1363 fs/btrfs/compression.c:323) btrfs\n  kernel: end_workqueue_fn (fs/btrfs/disk-io.c:1923) btrfs\n  kernel: btrfs_work_helper (fs/btrfs/async-thread.c:326) btrfs\n  kernel: process_one_work (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:212 ./include/trace/events/workqueue.h:108 kernel/workqueue.c:2312)\n  kernel: worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2455)\n  kernel: ? process_one_work (kernel/workqueue.c:2397)\n  kernel: kthread (kernel/kthread.c:377)\n  kernel: ? kthread_complete_and_exit (kernel/kthread.c:332)\n  kernel: ret_from_fork (arch/x86/entry/entry_64.S:301)\n  kernel:  \u003c/TASK\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-21T08:44:01.641Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8df508b7a44cd8110c726057cd28e8f8116885eb"
        },
        {
          "url": "https://git.kernel.org/stable/c/e326bd06cdde46df952361456232022298281d16"
        },
        {
          "url": "https://git.kernel.org/stable/c/741b23a970a79d5d3a1db2d64fa2c7b375a4febb"
        }
      ],
      "title": "btrfs: prevent copying too big compressed lzo segment",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48923",
    "datePublished": "2024-08-22T01:32:58.084Z",
    "dateReserved": "2024-08-21T06:06:23.296Z",
    "dateUpdated": "2025-05-21T08:44:01.641Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-48923\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:33:22.056264Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:12.730Z\"}}], \"cna\": {\"title\": \"btrfs: prevent copying too big compressed lzo segment\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"a6e66e6f8c1b685e11b778bef614480a9c1a5278\", \"lessThan\": \"8df508b7a44cd8110c726057cd28e8f8116885eb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a6e66e6f8c1b685e11b778bef614480a9c1a5278\", \"lessThan\": \"e326bd06cdde46df952361456232022298281d16\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a6e66e6f8c1b685e11b778bef614480a9c1a5278\", \"lessThan\": \"741b23a970a79d5d3a1db2d64fa2c7b375a4febb\", \"versionType\": \"git\"}], \"programFiles\": [\"fs/btrfs/lzo.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.26\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/btrfs/lzo.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/8df508b7a44cd8110c726057cd28e8f8116885eb\"}, {\"url\": \"https://git.kernel.org/stable/c/e326bd06cdde46df952361456232022298281d16\"}, {\"url\": \"https://git.kernel.org/stable/c/741b23a970a79d5d3a1db2d64fa2c7b375a4febb\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: prevent copying too big compressed lzo segment\\n\\nCompressed length can be corrupted to be a lot larger than memory\\nwe have allocated for buffer.\\nThis will cause memcpy in copy_compressed_segment to write outside\\nof allocated memory.\\n\\nThis mostly results in stuck read syscall but sometimes when using\\nbtrfs send can get #GP\\n\\n  kernel: general protection fault, probably for non-canonical address 0x841551d5c1000: 0000 [#1] PREEMPT SMP NOPTI\\n  kernel: CPU: 17 PID: 264 Comm: kworker/u256:7 Tainted: P           OE     5.17.0-rc2-1 #12\\n  kernel: Workqueue: btrfs-endio btrfs_work_helper [btrfs]\\n  kernel: RIP: 0010:lzo_decompress_bio (./include/linux/fortify-string.h:225 fs/btrfs/lzo.c:322 fs/btrfs/lzo.c:394) btrfs\\n  Code starting with the faulting instruction\\n  ===========================================\\n     0:*  48 8b 06                mov    (%rsi),%rax              \u003c-- trapping instruction\\n     3:   48 8d 79 08             lea    0x8(%rcx),%rdi\\n     7:   48 83 e7 f8             and    $0xfffffffffffffff8,%rdi\\n     b:   48 89 01                mov    %rax,(%rcx)\\n     e:   44 89 f0                mov    %r14d,%eax\\n    11:   48 8b 54 06 f8          mov    -0x8(%rsi,%rax,1),%rdx\\n  kernel: RSP: 0018:ffffb110812efd50 EFLAGS: 00010212\\n  kernel: RAX: 0000000000001000 RBX: 000000009ca264c8 RCX: ffff98996e6d8ff8\\n  kernel: RDX: 0000000000000064 RSI: 000841551d5c1000 RDI: ffffffff9500435d\\n  kernel: RBP: ffff989a3be856c0 R08: 0000000000000000 R09: 0000000000000000\\n  kernel: R10: 0000000000000000 R11: 0000000000001000 R12: ffff98996e6d8000\\n  kernel: R13: 0000000000000008 R14: 0000000000001000 R15: 000841551d5c1000\\n  kernel: FS:  0000000000000000(0000) GS:ffff98a09d640000(0000) knlGS:0000000000000000\\n  kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n  kernel: CR2: 00001e9f984d9ea8 CR3: 000000014971a000 CR4: 00000000003506e0\\n  kernel: Call Trace:\\n  kernel:  \u003cTASK\u003e\\n  kernel: end_compressed_bio_read (fs/btrfs/compression.c:104 fs/btrfs/compression.c:1363 fs/btrfs/compression.c:323) btrfs\\n  kernel: end_workqueue_fn (fs/btrfs/disk-io.c:1923) btrfs\\n  kernel: btrfs_work_helper (fs/btrfs/async-thread.c:326) btrfs\\n  kernel: process_one_work (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:212 ./include/trace/events/workqueue.h:108 kernel/workqueue.c:2312)\\n  kernel: worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2455)\\n  kernel: ? process_one_work (kernel/workqueue.c:2397)\\n  kernel: kthread (kernel/kthread.c:377)\\n  kernel: ? kthread_complete_and_exit (kernel/kthread.c:332)\\n  kernel: ret_from_fork (arch/x86/entry/entry_64.S:301)\\n  kernel:  \u003c/TASK\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.26\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.12\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17\", \"versionStartIncluding\": \"5.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-21T08:44:01.641Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-48923\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-21T08:44:01.641Z\", \"dateReserved\": \"2024-08-21T06:06:23.296Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-22T01:32:58.084Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.