{"id":"CVE-2024-43890","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix overflow in get_free_elt()\n\n\"tracing_map->next_elt\" in get_free_elt() is at risk of overflowing.\n\nOnce it overflows, new elements can still be inserted int…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix overflow in get_free_elt()\n\n\"tracing_map->next_elt\" in get_free_elt() is at risk of overflowing.\n\nOnce it overflows, new elements can still be inserted int…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-190"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.7, < 4.19.320","linux_kernel >= 4.20, < 5.4.282","linux_kernel >= 5.5, < 5.10.224","linux_kernel >= 5.11, < 5.15.165","linux_kernel >= 5.16, < 6.1.105","linux_kernel >= 6.2, < 6.6.46","linux_kernel >= 6.7, < 6.10.5","linux_kernel = 6.11"],"patched":["linux_kernel 6.10.5"],"published":"2024-08-26","updated":"2026-10-15","sourceUpdated":"2026-10-15T01:18:49.310","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2024-43890","references":[{"url":"https://git.kernel.org/stable/c/236bb4690773ab6869b40bedc7bc8d889e36f9d6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/302ceb625d7b990db205a15e371f9a71238de91c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/788ea62499b3c18541fd6d621964d8fafbc4aec5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a172c7b22bc2feaf489cfc6d6865f7237134fdf8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bcf86c01ca4676316557dd482c8416ece8c2e143","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cd10d186a5409a1fe6e976df82858e9773a698da","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eb223bf01e688dfe37e813c8988ee11c8c9f8d0a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-265688.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-355557.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-613116.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00257,"epssPercentile":0.17254,"ingestedAt":"2026-10-15T03:30:12.737Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-09-10T15:29:25.469360Z"},"slug":"CVE-2024-43890","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix overflow in get_free_elt()\n\n\"tracing_map->next_elt\" in get_free_elt() is at risk of overflowing.\n\nOnce it overflows, new elements can still be inserted into the tracing_map\neven though the maximum number of elements (`max_elts`) has been reached.\nContinuing to insert elements after the overflow could result in the\ntracing_map containing \"tracing_map->max_size\" elements, leaving no empty\nentries.\nIf any attempt is made to insert an element into a full tracing_map using\n`__tracing_map_insert()`, it will cause an infinite loop with preemption\ndisabled, leading to a CPU hang problem.\n\nFix this by preventing any further increments to \"tracing_map->next_elt\"\nonce it reaches \"tracing_map->max_elt\".\n\n## Affected\n\n- `linux_kernel >= 4.7, < 4.19.320`\n- `linux_kernel >= 4.20, < 5.4.282`\n- `linux_kernel >= 5.5, < 5.10.224`\n- `linux_kernel >= 5.11, < 5.15.165`\n- `linux_kernel >= 5.16, < 6.1.105`\n- `linux_kernel >= 6.2, < 6.6.46`\n- `linux_kernel >= 6.7, < 6.10.5`\n- `linux_kernel = 6.11`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.10.5`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}