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CVE-2025-39689 In the Linux kernel, the following vulnerability has been resolved: ftrace: Also allocate and copy hash for reading of…

Description

In the Linux kernel, the following vulnerability has been resolved: ftrace: Also allocate and copy hash for reading of filter files Currently the reader of set_ftrace_filter and set_ftrace_notrace just adds the pointer to the global tracer hash to its iterator. Unlike the writer that allocates a copy of the hash, the reader keeps the pointer to the filter hashes. This is problematic because this pointer is static across function calls that release the locks that can update the global tracer hashes. This can cause UAF and similar bugs. Allocate and copy the hash for reading the filter files like it is done for the writers. This not only fixes UAF bugs, but also makes the code a bit simpler as it doesn't have to differentiate when to free the iterator's hash between writers and readers.

Produits et versions touchés

Produit Versions touchées Corrigé en
Linux 6.17 premières → < 6.17 6.17
Linux 6.16 premières → < 6.16.4 6.16.4
Linux 6.12 premières → < 6.12.44 6.12.44
Linux 6.6 premières → < 6.6.103 6.6.103
Linux 6.1 premières → < 6.1.149 6.1.149
Linux 5.15 premières → < 5.15.190 5.15.190
Linux 5.10 premières → < 5.10.241 5.10.241
Linux 5.4 premières → < 5.4.297 5.4.297
Linux 4.12 Pas de correctif indiqué
Afficher les 4 autres branches
Produit Versions touchées Corrigé en
SIMATIC CN 4100 5.0 premières → < 5.0 5.0
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.5 → dernières Pas de correctif indiqué
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 3.1.5 → dernières Pas de correctif indiqué
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.5 → dernières Pas de correctif indiqué

Références

Chronologie

  1. Publiée
  2. Dernière modification

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