CVE-2025-38212

HIGH EPSS 4.8%
Published Jul 4, 202512mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Jul 4, 2025 12mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ipc: fix to protect IPCS lookups using RCU syzbot reported that it discovered a use-after-free vulnerability, [0] [0]: https://lore.kernel.org/all/67af13f8.050a0220.21dd3.0038.GAE@google.com/ idr_for_each() is protected by rwsem, but this is not enough. If it is not protected by RCU read-critical region, when idr_for_each() calls radix_tree_node_free() through call_rcu() to free the radix_tree_node structure, the node will be freed immediately, and when reading the next node in radix_tree_for_each_slot(), the already freed memory may be read. Therefore, we need to add code to make sure that idr_for_each() is protected within the RCU read-critical region when we call it in shm_destroy_orphaned().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
4.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥3.1  –  <5.4.295
linuxlinux_kernel*≥5.5  –  <5.10.239
linuxlinux_kernel*≥5.11  –  <5.15.186
linuxlinux_kernel*≥5.16  –  <6.1.142
linuxlinux_kernel*≥6.2  –  <6.6.95
linuxlinux_kernel*≥6.7  –  <6.12.35
linuxlinux_kernel*≥6.13  –  <6.15.4
debiandebian_linux11.0any

References 11

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-082556.html
  • git.kernel.org https://git.kernel.org/stable/c/5180561afff8e0f029073c8c8117c95c6512d1f9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f1e1573bf103303944fd7225559de5d8297539c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/68c173ea138b66d7dd1fd980c9bc578a18e11884
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/74bc813d11c30e28fc5261dc877cca662ccfac68
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/78297d53d3878d43c1d627d20cd09f611fa4b91d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b0b6bf90ce2699a574b3683e22c44d0dcdd7a057
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b968ba8bfd9f90914957bbbd815413bf6a98eca7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d66adabe91803ef34a8b90613c81267b5ded1472
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Mailing ListThird Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Mailing ListThird Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/5180561afff8e0f029073c8c8117c95c6512d1f9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5f1e1573bf103303944fd7225559de5d8297539c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/68c173ea138b66d7dd1fd980c9bc578a18e11884
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/74bc813d11c30e28fc5261dc877cca662ccfac68
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/78297d53d3878d43c1d627d20cd09f611fa4b91d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b0b6bf90ce2699a574b3683e22c44d0dcdd7a057
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b968ba8bfd9f90914957bbbd815413bf6a98eca7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d66adabe91803ef34a8b90613c81267b5ded1472
    Patch