CVE-2026-98476None▾ SunlitIn 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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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.
Linux >= 199652309a4d6635fca19d7528d73ab9e219bd9a < 9d8b21820caed9128945fffcedf03e2a4c21eee2Linux >= 199652309a4d6635fca19d7528d73ab9e219bd9a < 5fc54e04dad90b15d0430118b3f288a1d64e66c9Linux >= 199652309a4d6635fca19d7528d73ab9e219bd9a < 27e396a89f76f742abdbe9f8c4a58a6e806fdf59Linux >= 199652309a4d6635fca19d7528d73ab9e219bd9a < dbf30e661ceb9a52c94c85719716391dcc29142aLinux >= 199652309a4d6635fca19d7528d73ab9e219bd9a < 5e006ac90a4d331db1dd712b91fec849b45ffc01Linux >= 199652309a4d6635fca19d7528d73ab9e219bd9a < c3bbcb32deecc06ebb1762398399b566d5ff2fc9Linux >= 199652309a4d6635fca19d7528d73ab9e219bd9a < 44b16b02608058fc72198ac0205969f0f43065dfLinux >= 199652309a4d6635fca19d7528d73ab9e219bd9a < 5b76268dac968612f7283d59b539036de955b7d9Linux 4.18Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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