{"id":"CVE-2023-52863","state":"PUBLISHED","title":"hwmon: (axi-fan-control) Fix possible NULL pointer dereference","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (axi-fan-control) Fix possible NULL pointer dereference\n\naxi_fan_control_irq_handler(), dependent on the private\naxi_fan_control_data structure, might be called before the hwmon\ndevice is registered. That will cause an \"Unable to handle kernel\nNULL pointer dereference\" error.","publishedAt":"2024-05-21T15:31:55.198Z","updatedAt":"2026-05-11T19:34:29.027Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8412b410fa5e1e494a0fec84c3c462d49870d3f5","status":"affected","lessThan":"7d870088db4863c514a7f8751cd593751983029a","versionType":"git"},{"version":"8412b410fa5e1e494a0fec84c3c462d49870d3f5","status":"affected","lessThan":"b3e7eb23a6e97642ff3190431c06475d9ca1e062","versionType":"git"},{"version":"8412b410fa5e1e494a0fec84c3c462d49870d3f5","status":"affected","lessThan":"33de53a2706066d526173dc743faf43d92c62105","versionType":"git"},{"version":"8412b410fa5e1e494a0fec84c3c462d49870d3f5","status":"affected","lessThan":"f62b8969847850ba7596cb145cc47c65ea57dae0","versionType":"git"},{"version":"8412b410fa5e1e494a0fec84c3c462d49870d3f5","status":"affected","lessThan":"c49f14cc1bb12c625a1c572e8a95b6adefd4d8eb","versionType":"git"},{"version":"8412b410fa5e1e494a0fec84c3c462d49870d3f5","status":"affected","lessThan":"2a5b3370a1d9750eca325292e291c8c7cb8cf2e0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/axi-fan-control.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.201","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.139","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.63","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.12","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6.2","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/axi-fan-control.c"]}],"references":["https://git.kernel.org/stable/c/7d870088db4863c514a7f8751cd593751983029a","https://git.kernel.org/stable/c/b3e7eb23a6e97642ff3190431c06475d9ca1e062","https://git.kernel.org/stable/c/33de53a2706066d526173dc743faf43d92c62105","https://git.kernel.org/stable/c/f62b8969847850ba7596cb145cc47c65ea57dae0","https://git.kernel.org/stable/c/c49f14cc1bb12c625a1c572e8a95b6adefd4d8eb","https://git.kernel.org/stable/c/2a5b3370a1d9750eca325292e291c8c7cb8cf2e0"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52863.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52863","state":"PUBLISHED","datePublished":"2024-05-21T15:31:55.198Z","dateUpdated":"2026-05-11T19:34:29.027Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-21T15:19:24.261Z"},"containers":{"cna":{"title":"hwmon: (axi-fan-control) Fix possible NULL pointer dereference","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (axi-fan-control) Fix possible NULL pointer dereference\n\naxi_fan_control_irq_handler(), dependent on the private\naxi_fan_control_data structure, might be called before the hwmon\ndevice is registered. 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