{"id":"CVE-2025-38113","state":"PUBLISHED","title":"ACPI: CPPC: Fix NULL pointer dereference when nosmp is used","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Fix NULL pointer dereference when nosmp is used\n\nWith nosmp in cmdline, other CPUs are not brought up, leaving\ntheir cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu()\ndereferences these NULL pointers, causing panic.\n\nPanic backtrace:\n\n[    0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8\n...\n[    0.403255] [<ffffffff809a5818>] cppc_allow_fast_switch+0x6a/0xd4\n...\nKernel panic - not syncing: Attempted to kill init!\n\n[ rjw: New subject ]","publishedAt":"2025-07-03T08:35:22.207Z","updatedAt":"2026-05-11T21:21:30.642Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"356d09c7f5bf525086002a34f8bae40b134d1611","versionType":"git"},{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"c6dad167aade4bf0bef9130f2f149f4249fc4ad0","versionType":"git"},{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"32a48db4cf28ea087214c261da8476db218d08bd","versionType":"git"},{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"1a677d0ceb4a5d62117b711a8b2e0aee80d33015","versionType":"git"},{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/cppc_acpi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.19","versionType":"semver"},{"version":"6.1.142","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.94","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.34","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.3","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/cppc_acpi.c"]}],"references":["https://git.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611","https://git.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0","https://git.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bd","https://git.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015","https://git.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12","https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38113.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38113","state":"PUBLISHED","datePublished":"2025-07-03T08:35:22.207Z","dateUpdated":"2026-05-11T21:21:30.642Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:23.986Z"},"containers":{"cna":{"title":"ACPI: CPPC: Fix NULL pointer dereference when nosmp is used","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Fix NULL pointer dereference when nosmp is used\n\nWith nosmp in cmdline, other CPUs are not brought up, leaving\ntheir cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu()\ndereferences these NULL pointers, causing panic.\n\nPanic backtrace:\n\n[    0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8\n...\n[    0.403255] [<ffffffff809a5818>] cppc_allow_fast_switch+0x6a/0xd4\n...\nKernel panic - not syncing: Attempted to kill init!\n\n[ rjw: New subject ]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"356d09c7f5bf525086002a34f8bae40b134d1611","versionType":"git"},{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"c6dad167aade4bf0bef9130f2f149f4249fc4ad0","versionType":"git"},{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"32a48db4cf28ea087214c261da8476db218d08bd","versionType":"git"},{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"1a677d0ceb4a5d62117b711a8b2e0aee80d33015","versionType":"git"},{"version":"3cc30dd00a580ca0c9c0b01639841cfd72d10129","status":"affected","lessThan":"15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/cppc_acpi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.19","versionType":"semver"},{"version":"6.1.142","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.94","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.34","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.3","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/cppc_acpi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611"},{"url":"https://git.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0"},{"url":"https://git.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bd"},{"url":"https://git.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015"},{"url":"https://git.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:21:30.642Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.1.142"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.6.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.12.34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.15.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.16"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T17:34:16.439Z"}}]}}}