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CVE-2026-98476

s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.112, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: s390/cio: Fix NULL pointer dereference in ccw_device_get_util_str() The channel path registry entry associated with a CHPID may be removed while the subchannel's PMCW still references that CHPID. In this case, chpid_to_chp() can return NULL, leading to a NULL pointer dereference. Add the missing NULL check before dereferencing the returned pointer.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 199652309a4d6635fca19d7528d73ab9e219bd9a · fixed in 9d8b21820caed9128945fffcedf03e2a4c21eee2; From 199652309a4d6635fca19d7528d73ab9e219bd9a · fixed in 5fc54e04dad90b15d0430118b3f288a1d64e66c9; From 199652309a4d6635fca19d7528d73ab9e219bd9a · fixed in 27e396a89f76f742abdbe9f8c4a58a6e806fdf59; From 199652309a4d6635fca19d7528d73ab9e219bd9a · fixed in dbf30e661ceb9a52c94c85719716391dcc29142a; From 199652309a4d6635fca19d7528d73ab9e219bd9a · fixed in 5e006ac90a4d331db1dd712b91fec849b45ffc01; From 199652309a4d6635fca19d7528d73ab9e219bd9a · fixed in c3bbcb32deecc06ebb1762398399b566d5ff2fc9; From 199652309a4d6635fca19d7528d73ab9e219bd9a · fixed in 44b16b02608058fc72198ac0205969f0f43065df; From 199652309a4d6635fca19d7528d73ab9e219bd9a · fixed in 5b76268dac968612f7283d59b539036de955b7d9

  • Linux Linux

    4.18

  • KernelLinux

    From 4.18.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.112; From 6.13.0 · fixed in 6.18.55; From 6.19.0 · fixed in 7.2.9

References 8

git.kernel.org