{"id":"CVE-2025-37940","state":"PUBLISHED","title":"ftrace: Add cond_resched() to ftrace_graph_set_hash()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Add cond_resched() to ftrace_graph_set_hash()\n\nWhen the kernel contains a large number of functions that can be traced,\nthe loop in ftrace_graph_set_hash() may take a lot of time to execute.\nThis may trigger the softlockup watchdog.\n\nAdd cond_resched() within the loop to allow the kernel to remain\nresponsive even when processing a large number of functions.\n\nThis matches the cond_resched() that is used in other locations of the\ncode that iterates over all functions that can be traced.","publishedAt":"2025-05-20T15:58:17.634Z","updatedAt":"2026-05-11T21:18:03.926Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"e5b4ae6f01d4a510d5725eca7254519a1093920d","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"618655d54c5f8af5d57b77491d08c0f0ff77d114","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"dd38803c9088b848c6b56f4f6d7efc4497bfde61","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"8dd7d7280357596ba63dfdb4c1725d9dd24bd42a","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"5d336ac215e5c76e43ef4bca9ba699835e53e2fd","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"1fce9574b9d515bcb8a75379a8053e18602424e3","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"4429535acab750d963fdc3dfcc9e0eee42f4d599","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"72be43ff061a889c6ee648a330a42486cafa15a6","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"42ea22e754ba4f2b86f8760ca27f6f71da2d982c","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":"4.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.11","versionType":"semver"},{"version":"5.4.293","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.237","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.181","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.135","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.88","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.24","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.12","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14.3","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","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/e5b4ae6f01d4a510d5725eca7254519a1093920d","https://git.kernel.org/stable/c/618655d54c5f8af5d57b77491d08c0f0ff77d114","https://git.kernel.org/stable/c/dd38803c9088b848c6b56f4f6d7efc4497bfde61","https://git.kernel.org/stable/c/8dd7d7280357596ba63dfdb4c1725d9dd24bd42a","https://git.kernel.org/stable/c/5d336ac215e5c76e43ef4bca9ba699835e53e2fd","https://git.kernel.org/stable/c/1fce9574b9d515bcb8a75379a8053e18602424e3","https://git.kernel.org/stable/c/4429535acab750d963fdc3dfcc9e0eee42f4d599","https://git.kernel.org/stable/c/72be43ff061a889c6ee648a330a42486cafa15a6","https://git.kernel.org/stable/c/42ea22e754ba4f2b86f8760ca27f6f71da2d982c","https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:03.054Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/37xxx/CVE-2025-37940.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37940","state":"PUBLISHED","datePublished":"2025-05-20T15:58:17.634Z","dateUpdated":"2026-05-11T21:18:03.926Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:23.971Z"},"containers":{"cna":{"title":"ftrace: Add cond_resched() to ftrace_graph_set_hash()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Add cond_resched() to ftrace_graph_set_hash()\n\nWhen the kernel contains a large number of functions that can be traced,\nthe loop in ftrace_graph_set_hash() may take a lot of time to execute.\nThis may trigger the softlockup watchdog.\n\nAdd cond_resched() within the loop to allow the kernel to remain\nresponsive even when processing a large number of functions.\n\nThis matches the cond_resched() that is used in other locations of the\ncode that iterates over all functions that can be traced."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"e5b4ae6f01d4a510d5725eca7254519a1093920d","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"618655d54c5f8af5d57b77491d08c0f0ff77d114","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"dd38803c9088b848c6b56f4f6d7efc4497bfde61","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"8dd7d7280357596ba63dfdb4c1725d9dd24bd42a","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"5d336ac215e5c76e43ef4bca9ba699835e53e2fd","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"1fce9574b9d515bcb8a75379a8053e18602424e3","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"4429535acab750d963fdc3dfcc9e0eee42f4d599","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"72be43ff061a889c6ee648a330a42486cafa15a6","versionType":"git"},{"version":"b9b0c831bed2682c2e3e9f5420fb6985549ef020","status":"affected","lessThan":"42ea22e754ba4f2b86f8760ca27f6f71da2d982c","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":"4.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.11","versionType":"semver"},{"version":"5.4.293","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.237","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.181","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.135","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.88","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.24","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.12","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14.3","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","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/e5b4ae6f01d4a510d5725eca7254519a1093920d"},{"url":"https://git.kernel.org/stable/c/618655d54c5f8af5d57b77491d08c0f0ff77d114"},{"url":"https://git.kernel.org/stable/c/dd38803c9088b848c6b56f4f6d7efc4497bfde61"},{"url":"https://git.kernel.org/stable/c/8dd7d7280357596ba63dfdb4c1725d9dd24bd42a"},{"url":"https://git.kernel.org/stable/c/5d336ac215e5c76e43ef4bca9ba699835e53e2fd"},{"url":"https://git.kernel.org/stable/c/1fce9574b9d515bcb8a75379a8053e18602424e3"},{"url":"https://git.kernel.org/stable/c/4429535acab750d963fdc3dfcc9e0eee42f4d599"},{"url":"https://git.kernel.org/stable/c/72be43ff061a889c6ee648a330a42486cafa15a6"},{"url":"https://git.kernel.org/stable/c/42ea22e754ba4f2b86f8760ca27f6f71da2d982c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:18:03.926Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"5.4.293"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"5.10.237"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"5.15.181"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.1.135"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.6.88"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.12.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.13.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.14.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.11","versionEndExcluding":"6.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"ad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