{"id":"CVE-2025-68173","state":"PUBLISHED","title":"ftrace: Fix softlockup in ftrace_module_enable","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix softlockup in ftrace_module_enable\n\nA soft lockup was observed when loading amdgpu module.\nIf a module has a lot of tracable functions, multiple calls\nto kallsyms_lookup can spend too much time in RCU critical\nsection and with disabled preemption, causing kernel panic.\nThis is the same issue that was fixed in\ncommit d0b24b4e91fc (\"ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY\nkernels\") and commit 42ea22e754ba (\"ftrace: Add cond_resched() to\nftrace_graph_set_hash()\").\n\nFix it the same way by adding cond_resched() in ftrace_module_enable.","publishedAt":"2025-12-16T13:42:53.106Z","updatedAt":"2026-05-11T21:48:04.420Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"a1dd0abd741a8111260676da729825d6c1461a71","versionType":"git"},{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"e81e6d6d99b16dae11adbeda5c996317942a940c","versionType":"git"},{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"40c8ee40e48a2c82c762539952ed8fc0571db5bf","versionType":"git"},{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"7e3c96010ade29bb340a5bdce8675f50c7f59001","versionType":"git"},{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"4099b98203d6b33d990586542fa5beee408032a3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/ftrace.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.5","versionType":"semver"},{"version":"6.1.159","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.117","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.58","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.8","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/ftrace.c"]}],"references":["https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71","https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c","https://git.kernel.org/stable/c/40c8ee40e48a2c82c762539952ed8fc0571db5bf","https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001","https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/68xxx/CVE-2025-68173.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68173","state":"PUBLISHED","datePublished":"2025-12-16T13:42:53.106Z","dateUpdated":"2026-05-11T21:48:04.420Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-16T13:41:40.251Z"},"containers":{"cna":{"title":"ftrace: Fix softlockup in ftrace_module_enable","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix softlockup in ftrace_module_enable\n\nA soft lockup was observed when loading amdgpu module.\nIf a module has a lot of tracable functions, multiple calls\nto kallsyms_lookup can spend too much time in RCU critical\nsection and with disabled preemption, causing kernel panic.\nThis is the same issue that was fixed in\ncommit d0b24b4e91fc (\"ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY\nkernels\") and commit 42ea22e754ba (\"ftrace: Add cond_resched() to\nftrace_graph_set_hash()\").\n\nFix it the same way by adding cond_resched() in ftrace_module_enable."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"a1dd0abd741a8111260676da729825d6c1461a71","versionType":"git"},{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"e81e6d6d99b16dae11adbeda5c996317942a940c","versionType":"git"},{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"40c8ee40e48a2c82c762539952ed8fc0571db5bf","versionType":"git"},{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"7e3c96010ade29bb340a5bdce8675f50c7f59001","versionType":"git"},{"version":"b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c","status":"affected","lessThan":"4099b98203d6b33d990586542fa5beee408032a3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/ftrace.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.5","versionType":"semver"},{"version":"6.1.159","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.117","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.58","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.8","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/ftrace.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71"},{"url":"https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c"},{"url":"https://git.kernel.org/stable/c/40c8ee40e48a2c82c762539952ed8fc0571db5bf"},{"url":"https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001"},{"url":"https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:48:04.420Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.1.159"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.6.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.12.58"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.17.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.18"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}