{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2024-57923",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-57923",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2025-01-19T11:52:41.798Z",
    "updatedAt": "2026-05-11T21:00:39.423Z",
    "importedAt": "2026-10-24T01:57:20.494Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "btrfs: zlib: fix avail_in bytes for s390 zlib HW compression path",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zlib: fix avail_in bytes for s390 zlib HW compression path\n\nSince the input data length passed to zlib_compress_folios() can be\narbitrary, always setting strm.avail_in to a multiple of PAGE_SIZE may\ncause read-in bytes to exceed the input range. Currently this triggers\nan assert in btrfs_compress_folios() on the debug kernel (see below).\nFix strm.avail_in calculation for S390 hardware acceleration path.\n\n  assertion failed: *total_in <= orig_len, in fs/btrfs/compression.c:1041\n  ------------[ cut here ]------------\n  kernel BUG at fs/btrfs/compression.c:1041!\n  monitor event: 0040 ilc:2 [#1] PREEMPT SMP\n  CPU: 16 UID: 0 PID: 325 Comm: kworker/u273:3 Not tainted 6.13.0-20241204.rc1.git6.fae3b21430ca.300.fc41.s390x+debug #1\n  Hardware name: IBM 3931 A01 703 (z/VM 7.4.0)\n  Workqueue: btrfs-delalloc btrfs_work_helper\n  Krnl PSW : 0704d00180000000 0000021761df6538 (btrfs_compress_folios+0x198/0x1a0)\n             R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:1 PM:0 RI:0 EA:3\n  Krnl GPRS: 0000000080000000 0000000000000001 0000000000000047 0000000000000000\n             0000000000000006 ffffff01757bb000 000001976232fcc0 000000000000130c\n             000001976232fcd0 000001976232fcc8 00000118ff4a0e30 0000000000000001\n             00000111821ab400 0000011100000000 0000021761df6534 000001976232fb58\n  Krnl Code: 0000021761df6528: c020006f5ef4        larl    %r2,0000021762be2310\n             0000021761df652e: c0e5ffbd09d5        brasl   %r14,00000217615978d8\n            #0000021761df6534: af000000            mc      0,0\n            >0000021761df6538: 0707                bcr     0,%r7\n             0000021761df653a: 0707                bcr     0,%r7\n             0000021761df653c: 0707                bcr     0,%r7\n             0000021761df653e: 0707                bcr     0,%r7\n             0000021761df6540: c004004bb7ec        brcl    0,000002176276d518\n  Call Trace:\n   [<0000021761df6538>] btrfs_compress_folios+0x198/0x1a0\n  ([<0000021761df6534>] btrfs_compress_folios+0x194/0x1a0)\n   [<0000021761d97788>] compress_file_range+0x3b8/0x6d0\n   [<0000021761dcee7c>] btrfs_work_helper+0x10c/0x160\n   [<0000021761645760>] process_one_work+0x2b0/0x5d0\n   [<000002176164637e>] worker_thread+0x20e/0x3e0\n   [<000002176165221a>] kthread+0x15a/0x170\n   [<00000217615b859c>] __ret_from_fork+0x3c/0x60\n   [<00000217626e72d2>] ret_from_fork+0xa/0x38\n  INFO: lockdep is turned off.\n  Last Breaking-Event-Address:\n   [<0000021761597924>] _printk+0x4c/0x58\n  Kernel panic - not syncing: Fatal exception: panic_on_oops",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fd1e75d0105d2289e24b6d63cee49e6f7952c8bf",
              "status": "affected",
              "versionType": "git",
              "lessThan": "25adbb08aeadcff883ab801df99fd20fefbb6ca4"
            },
            {
              "version": "fd1e75d0105d2289e24b6d63cee49e6f7952c8bf",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0ee4736c003daded513de0ff112d4a1e9c85bbab"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.12"
            },
            {
              "version": "6.12.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}