boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-49418MEDIUM
Linux Linux — NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0051   41.4     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    9558a007dbc383d48e7f5a123d0b5ff656c71068 –  —
  Linux    5.16 –                                      5.18.3
TIMELINE
  Feb 26  Reserved by Linux
  Feb 26  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2022-49418 (Linux). CVSS 9.8 → 5.5 (NVD).
CWE-908 · CNA: Linux · CVSS v3.1 · 2 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix free of uninitialized nfs4_label on referral lookup. Send along the already-allocated fattr along with nfs4_fs_locations, and drop the memcpy of fattr. We end up growing two more allocations, but this fixes up a crash as: PID: 790 TASK: ffff88811b43c000 CPU: 0 COMMAND: "ls" #0 [ffffc90000857920] panic at ffffffff81b9bfde #1 [ffffc900008579c0] do_trap at ffffffff81023a9b #2 [ffffc90000857a10] do_error_trap at ffffffff81023b78 #3 [ffffc90000857a58] exc_stack_segment at ffffffff81be1f45 #4 [ffffc90000857a80] asm_exc_stack_segment at ffffffff81c009de #5 [ffffc90000857b08] nfs_lookup at ffffffffa0302322 [nfs] #6 [ffffc90000857b70] __lookup_slow at ffffffff813a4a5f #7 [ffffc90000857c60] walk_component at ffffffff813a86c4 #8 [ffffc90000857cb8] path_lookupat at ffffffff813a9553 #9 [ffffc90000857cf0] filename_lookup at ffffffff813ab86b

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
February 26, 2025ReservedReserved by Linux
February 26, 2025PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2022-49418 (Linux). CVSS 9.8 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux—9558a007dbc383d48e7f5a123d0b5ff656c71068—
LinuxLinux—5.165.18.3

Weaknesses

CWE-908

References (2)

Related

Authoritative record: CVE-2022-49418 at cve.org

Vendors: linux

Weaknesses: CWE-908

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49418 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.