Riskcovery

CVE-2026-93210

smb: client: harden DFS cache against invalid target hints

State
Published
Severity
Not scored
Published
Sep 24, 2026
Updated
Oct 19, 2026
Reserved
Sep 17, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

smb: client: harden DFS cache against invalid target hints

Currently, get_tgt_name() returns ERR_PTR(-ENOENT) when ce->tgthint is NULL, and dfs_cache_noreq_update_tgthint() assumes ce->tgthint is always valid.

In preparation for clearing ce->tgthint in free_tgts(), harden callers of get_tgt_name() against ERR_PTR results and harden dfs_cache_noreq_update_tgthint() against NULL pointer dereferences.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 54be1f6c1c37498bba557049df646cc239fa37e3 to before a48328afbc3f63e3b9de8827e2e16c15b17976f7Affected
  • 54be1f6c1c37498bba557049df646cc239fa37e3 to before 6cb7f9fed8f40f28fbd464ca99c946951afc0952Affected
  • 54be1f6c1c37498bba557049df646cc239fa37e3 to before 66dbcdbb0cadffd12eb8f2b115fd57d384c5109dAffected
  • 54be1f6c1c37498bba557049df646cc239fa37e3 to before 846f0709559b9e27024e126a80bc7afb76516912Affected
  • 54be1f6c1c37498bba557049df646cc239fa37e3 to before 7e32da6047d9afdae8dd17b87b4c8d97363c4ee2Affected
  • 54be1f6c1c37498bba557049df646cc239fa37e3 to before bf86c08123c6ab8c61cc0be1dad7540db93738ffAffected
LinuxLinux
  • 5.0Affected
  • before 5.0Not affected
  • 6.1.188 through 6.1.*Not affected
  • 6.6.157 through 6.6.*Not affected
  • 6.12.109 through 6.12.*Not affected
  • 6.18.50 through 6.18.*Not affected
  • 7.2.4 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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