Unrated severityNVD Advisory· Published Oct 18, 2026
CVE-2026-98476
CVE-2026-98476
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.
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Affected products
1Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/27e396a89f76f742abdbe9f8c4a58a6e806fdf59nvd
- git.kernel.org/stable/c/44b16b02608058fc72198ac0205969f0f43065dfnvd
- git.kernel.org/stable/c/5b76268dac968612f7283d59b539036de955b7d9nvd
- git.kernel.org/stable/c/5e006ac90a4d331db1dd712b91fec849b45ffc01nvd
- git.kernel.org/stable/c/5fc54e04dad90b15d0430118b3f288a1d64e66c9nvd
- git.kernel.org/stable/c/9d8b21820caed9128945fffcedf03e2a4c21eee2nvd
- git.kernel.org/stable/c/c3bbcb32deecc06ebb1762398399b566d5ff2fc9nvd
- git.kernel.org/stable/c/dbf30e661ceb9a52c94c85719716391dcc29142anvd
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