{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-50249","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-10-21T19:36:19.979Z","datePublished":"2024-11-09T10:14:57.833Z","dateUpdated":"2025-11-03T22:27:28.791Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T13:00:02.349Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Make rmw_lock a raw_spin_lock\n\nThe following BUG was triggered:\n\n=============================\n[ BUG: Invalid wait context ]\n6.12.0-rc2-XXX #406 Not tainted\n-----------------------------\nkworker/1:1/62 is trying to lock:\nffffff8801593030 (&cpc_ptr->rmw_lock){+.+.}-{3:3}, at: cpc_write+0xcc/0x370\nother info that might help us debug this:\ncontext-{5:5}\n2 locks held by kworker/1:1/62:\n  #0: ffffff897ef5ec98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x50\n  #1: ffffff880154e238 (&sg_policy->update_lock){....}-{2:2}, at: sugov_update_shared+0x3c/0x280\nstack backtrace:\nCPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 Not tainted 6.12.0-rc2-g9654bd3e8806 #406\nWorkqueue:  0x0 (events)\nCall trace:\n  dump_backtrace+0xa4/0x130\n  show_stack+0x20/0x38\n  dump_stack_lvl+0x90/0xd0\n  dump_stack+0x18/0x28\n  __lock_acquire+0x480/0x1ad8\n  lock_acquire+0x114/0x310\n  _raw_spin_lock+0x50/0x70\n  cpc_write+0xcc/0x370\n  cppc_set_perf+0xa0/0x3a8\n  cppc_cpufreq_fast_switch+0x40/0xc0\n  cpufreq_driver_fast_switch+0x4c/0x218\n  sugov_update_shared+0x234/0x280\n  update_load_avg+0x6ec/0x7b8\n  dequeue_entities+0x108/0x830\n  dequeue_task_fair+0x58/0x408\n  __schedule+0x4f0/0x1070\n  schedule+0x54/0x130\n  worker_thread+0xc0/0x2e8\n  kthread+0x130/0x148\n  ret_from_fork+0x10/0x20\n\nsugov_update_shared() locks a raw_spinlock while cpc_write() locks a\nspinlock.\n\nTo have a correct wait-type order, update rmw_lock to a raw spinlock and\nensure that interrupts will be disabled on the CPU holding it.\n\n[ rjw: Changelog edits ]"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/cppc_acpi.c","include/acpi/cppc_acpi.h"],"versions":[{"version":"94e8c988468dafde1d2bfe0532a60a3117f6394b","lessThan":"c46d6b02588000c27b7b869388c2c0278bd0d173","status":"affected","versionType":"git"},{"version":"f812ca13a0d3e3aa418da36b66ca40df0d6f9e60","lessThan":"23039b4aaf1e82e0feea1060834d4ec34262e453","status":"affected","versionType":"git"},{"version":"8ad28208be7bbe748e90442c45963ddbef0fd1e2","lessThan":"0eb2b767c42fac61ab23c4063eb456baa4c2c262","status":"affected","versionType":"git"},{"version":"20cde05aa8bcd7a5ff36a609d813189b7cdbe692","lessThan":"43b1df48d1e7000a214acd1a81b8012ca8a929c8","status":"affected","versionType":"git"},{"version":"60949b7b805424f21326b450ca4f1806c06d982e","lessThan":"1c10941e34c5fdc0357e46a25bd130d9cf40b925","status":"affected","versionType":"git"},{"version":"82cee12ada68dfd438c7faca152dbfe042868743","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/acpi/cppc_acpi.c","include/acpi/cppc_acpi.h"],"versions":[{"version":"5.15.168","lessThan":"5.15.171","status":"affected","versionType":"semver"},{"version":"6.1.113","lessThan":"6.1.116","status":"affected","versionType":"semver"},{"version":"6.6.54","lessThan":"6.6.60","status":"affected","versionType":"semver"},{"version":"6.11.2","lessThan":"6.11.7","status":"affected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.168","versionEndExcluding":"5.15.171"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.113","versionEndExcluding":"6.1.116"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.54","versionEndExcluding":"6.6.60"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11.2","versionEndExcluding":"6.11.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c46d6b02588000c27b7b869388c2c0278bd0d173"},{"url":"https://git.kernel.org/stable/c/23039b4aaf1e82e0feea1060834d4ec34262e453"},{"url":"https://git.kernel.org/stable/c/0eb2b767c42fac61ab23c4063eb456baa4c2c262"},{"url":"https://git.kernel.org/stable/c/43b1df48d1e7000a214acd1a81b8012ca8a929c8"},{"url":"https://git.kernel.org/stable/c/1c10941e34c5fdc0357e46a25bd130d9cf40b925"}],"title":"ACPI: CPPC: Make rmw_lock a raw_spin_lock","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-50249","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T20:15:54.957362Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","description":"CWE-noinfo Not enough information"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T20:17:25.215Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:27:28.791Z"}}]}}