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xfs: fix under-reservation of blocks when repairing sf directories

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: xfs: fix under-reservation of blocks when repairing sf directories Whilst running QA on XFS for-next as of 7.3-rc2 with MKFS_OPTIONS="-n size=8192", I observed the following (trimmed) dmesg splat: XFS: Assertion failed: args->total >= dp->i_nblocks - nblks, file: fs/xfs/libxfs/xfs_da_btree.c, line: 2387 WARNING: fs/xfs/xfs_message.c:104 at assfail+0x46/0x4a [xfs], CPU#0: xfs_scrub/1426511 CPU: 0 UID: 0 PID: 1426511 Comm: xfs_scrub Tainted: G W 7.3.0-rc2-djwx #rc2 PREEMPT(lazy) 6e418570b606a39783b0e7e7b30dc407b965f9e8 Tainted: [W]=WARN RIP: 0010:assfail+0x46/0x4a [xfs] RSP: 0018:ffffc900010d7890 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000ffffffd1 RDX: 0000000000000000 RSI: 0000000000000021 RDI: ffffffffa059fd38 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000000a R11: 000000007fffffff R12: ffffc900010d7940 R13: ffff888368d8f980 R14: ffffc900010d7a48 R15: ffffc900010d78d0 FS: 00007f445c5ce680(0000) GS:ffff8884a97ea000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f443803b9a8 CR3: 0000000107a4b000 CR4: 00000000003506f0 Call Trace: xfs_da_grow_inode_int+0x2e0/0x300 [xfs 5de2257e14108c136f11317e6bbb8ac77efd392c] xfs_dir2_grow_inode+0x6e/0x150 [xfs 5de2257e14108c136f11317e6bbb8ac77efd392c] xfs_dir2_sf_to_block+0x149/0x870 [xfs 5de2257e14108c136f11317e6bbb8ac77efd392c] xrep_dir_swap_prep+0xe2/0x110 [xfs 5de225

Announced Source revision 1
Original source ↗

CVE-2026-97549

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-97549

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "629fdaf5f5b1b7f7107ed4de04e0991a99501ced",
        "lessThan": "996cce0c422b66a0e8b1a99505f896b0669ee5b6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "629fdaf5f5b1b7f7107ed4de04e0991a99501ced",
        "lessThan": "b8f46ca5cbd629ffb91489ad7f970b3837835b0a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "629fdaf5f5b1b7f7107ed4de04e0991a99501ced",
        "lessThan": "b950e84acd072ac648ace4fea53c0b1212da4b2c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "629fdaf5f5b1b7f7107ed4de04e0991a99501ced",
        "lessThan": "4d3c07591534517c633945c8d8e6526f10e3fabc",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/xfs/libxfs/xfs_da_btree.c",
      "fs/xfs/libxfs/xfs_da_btree.h",
      "fs/xfs/scrub/attr_repair.c",
      "fs/xfs/scrub/dir_repair.c",
      "fs/xfs/scrub/tempfile.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.54",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.7",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/xfs/libxfs/xfs_da_btree.c",
      "fs/xfs/libxfs/xfs_da_btree.h",
      "fs/xfs/scrub/attr_repair.c",
      "fs/xfs/scrub/dir_repair.c",
      "fs/xfs/scrub/tempfile.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-97549

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#37999 · Revision 1
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Publisher date
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