{"id":"CVE-2025-37940","title":"ftrace: Add cond_resched() to ftrace_graph_set_hash()","summary":"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 …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < e5b4ae6f01d4a510d5725eca7254519a1093920d","Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 618655d54c5f8af5d57b77491d08c0f0ff77d114","Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < dd38803c9088b848c6b56f4f6d7efc4497bfde61","Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 8dd7d7280357596ba63dfdb4c1725d9dd24bd42a","Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 5d336ac215e5c76e43ef4bca9ba699835e53e2fd","Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 1fce9574b9d515bcb8a75379a8053e18602424e3","Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 4429535acab750d963fdc3dfcc9e0eee42f4d599","Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 72be43ff061a889c6ee648a330a42486cafa15a6","Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 42ea22e754ba4f2b86f8760ca27f6f71da2d982c","Linux 4.11"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:45:26.480860Z"},"published":"2025-05-20","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:52:08.689Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-37940","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"}],"tags":["cve.org"],"epss":0.00162,"epssPercentile":0.05455,"ingestedAt":"2026-11-05T22:38:31.896Z","slug":"CVE-2025-37940","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < e5b4ae6f01d4a510d5725eca7254519a1093920d`\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 618655d54c5f8af5d57b77491d08c0f0ff77d114`\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < dd38803c9088b848c6b56f4f6d7efc4497bfde61`\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 8dd7d7280357596ba63dfdb4c1725d9dd24bd42a`\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 5d336ac215e5c76e43ef4bca9ba699835e53e2fd`\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 1fce9574b9d515bcb8a75379a8053e18602424e3`\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 4429535acab750d963fdc3dfcc9e0eee42f4d599`\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 72be43ff061a889c6ee648a330a42486cafa15a6`\n- `Linux >= b9b0c831bed2682c2e3e9f5420fb6985549ef020 < 42ea22e754ba4f2b86f8760ca27f6f71da2d982c`\n- `Linux 4.11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}