Medium · CVSS 4.7CVE-2024-56729

smb: Initialize cfid->tcon before performing network opsCVE-2024-56729

Answer in brief

CVE-2024-56729 records a Medium severity (CVSS 4.7) vulnerability in smb: Initialize cfid->tcon before performing network ops. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Dec 29, 2024Updated Oct 30, 2026Source checked Oct 30, 2026First seen by HOL Oct 30, 2026Material review Oct 30, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 4.7
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 4.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:o:linux:linux_kernel::::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=ebe98f1447bbccf8228335c62d86af02a0ed23f7 <269ff24a5b2b58600151e04e964d2043bfe1843c \|\| >=ebe98f1447bbccf8228335c62d86af02a0ed23f7 <625e2357c8fcfae6e66dcc667dc656fe390bab15 \|\| >=ebe98f1447bbccf8228335c62d86af02a0ed23f7 <4b216c8f9c7d84ef7de33ca60b97e08e03ef3292 \|\| >=ebe98f1447bbccf8228335c62d86af02a0ed23f7 <1b9ab6b648f89441c8a13cb3fd8ca83ffebc5262 \|\| >=ebe98f1447bbccf8228335c62d86af02a0ed23f7 <c353ee4fb119a2582d0e011f66a76a38f5cf984d	269ff24a5b2b58600151e04e964d2043bfe1843c, 625e2357c8fcfae6e66dcc667dc656fe390bab15, 4b216c8f9c7d84ef7de33ca60b97e08e03ef3292, 1b9ab6b648f89441c8a13cb3fd8ca83ffebc5262, c353ee4fb119a2582d0e011f66a76a38f5cf984d
Linux/Linuxgeneric	6.1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 269ff24a5b2b58600151e04e964d2043bfe1843c if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Dec 29, 2024
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 30, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: smb: Initialize cfid->tcon before performing network ops Avoid leaking a tcon ref when a lease break races with opening the cached directory. Processing the leak break might take a reference to the tcon in cached_dir_lease_break() and then fail to release the ref in cached_dir_offload_close, since cfid->tcon is still NULL.

Quoted source text, attributed separately from HOL analysis.