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CVE-2026-98476

Unknown

Last modified

CVE-2026-98476 is a vulnerability of currently unknown severity. 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..

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 199652309a4d6635fca19d7528d73ab9e219bd9a, < 9d8b21820caed9128945fffcedf03e2a4c21eee2; >= 199652309a4d6635fca19d7528d73ab9e219bd9a, < 5fc54e04dad90b15d0430118b3f288a1d64e66c9; >= 199652309a4d6635fca19d7528d73ab9e219bd9a, < 27e396a89f76f742abdbe9f8c4a58a6e806fdf59; >= 199652309a4d6635fca19d7528d73ab9e219bd9a, < dbf30e661ceb9a52c94c85719716391dcc29142a; >= 199652309a4d6635fca19d7528d73ab9e219bd9a, < 5e006ac90a4d331db1dd712b91fec849b45ffc01; >= 199652309a4d6635fca19d7528d73ab9e219bd9a, < c3bbcb32deecc06ebb1762398399b566d5ff2fc9; >= 199652309a4d6635fca19d7528d73ab9e219bd9a, < 44b16b02608058fc72198ac0205969f0f43065df; >= 199652309a4d6635fca19d7528d73ab9e219bd9a, < 5b76268dac968612f7283d59b539036de955b7d9
LinuxLinux4.18

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98476?
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.
How severe is CVE-2026-98476?
Severity scoring for CVE-2026-98476 is pending analysis.
How do I fix CVE-2026-98476?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST