CVE-2024-43890tracing: Fix overflow in get_free_elt()
- 5.5MediumCVSS base score
- 0.26%Exploitation in 30 daysEPSS · top 83% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix overflow in get_free_elt() "tracing_map->next_elt" in get_free_elt() is at risk of overflowing. Once it overflows, new elements can still be inserted into the tracing_map even though the maximum number of elements (`max_elts`) has been reached. Continuing to insert elements after the overflow could result in the tracing_map containing "tracing_map->max_size" elements, leaving no empty entries. If any attempt is made to insert an element into a full tracing_map using `__tracing_map_insert()`, it will cause an infinite loop with preemption disabled, leading to a CPU hang problem. Fix this by preventing any further increments to "tracing_map->next_elt" once it reaches "tracing_map->max_elt".
Timeline
ID reserved
By Linux
- 9 days later
· 9 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.26% · top 83% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 08d43a5fa063e03c860f2f391a30c388bcbc948e – < 302ceb625d7b990db205a15e371f9a71238de91c
- affected 08d43a5fa063e03c860f2f391a30c388bcbc948e – < d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18
- affected 08d43a5fa063e03c860f2f391a30c388bcbc948e – < eb223bf01e688dfe37e813c8988ee11c8c9f8d0a
- affected 08d43a5fa063e03c860f2f391a30c388bcbc948e – < cd10d186a5409a1fe6e976df82858e9773a698da
- affected 08d43a5fa063e03c860f2f391a30c388bcbc948e – < 788ea62499b3c18541fd6d621964d8fafbc4aec5
- affected 08d43a5fa063e03c860f2f391a30c388bcbc948e – < a172c7b22bc2feaf489cfc6d6865f7237134fdf8
- affected 08d43a5fa063e03c860f2f391a30c388bcbc948e – < 236bb4690773ab6869b40bedc7bc8d889e36f9d6
- affected 08d43a5fa063e03c860f2f391a30c388bcbc948e – < bcf86c01ca4676316557dd482c8416ece8c2e143
- affected 4.7
- unaffected < 4.7
- unaffected 4.19.320 – ≤ 4.19.*
- unaffected 5.4.282 – ≤ 5.4.*
- unaffected 5.10.224 – ≤ 5.10.*
- unaffected 5.15.165 – ≤ 5.15.*
- unaffected 6.1.105 – ≤ 6.1.*
- unaffected 6.6.46 – ≤ 6.6.*
- unaffected 6.10.5 – ≤ 6.10.*
- unaffected 6.11 – ≤ *
References
References13
- https://git.kernel.org/stable/c/302ceb625d7b990db205a15e371f9a71238de91c (opens in a new tab)
- https://git.kernel.org/stable/c/d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18 (opens in a new tab)
- https://git.kernel.org/stable/c/eb223bf01e688dfe37e813c8988ee11c8c9f8d0a (opens in a new tab)
- https://git.kernel.org/stable/c/cd10d186a5409a1fe6e976df82858e9773a698da (opens in a new tab)
- https://git.kernel.org/stable/c/788ea62499b3c18541fd6d621964d8fafbc4aec5 (opens in a new tab)
- https://git.kernel.org/stable/c/a172c7b22bc2feaf489cfc6d6865f7237134fdf8 (opens in a new tab)
- https://git.kernel.org/stable/c/236bb4690773ab6869b40bedc7bc8d889e36f9d6 (opens in a new tab)
- https://git.kernel.org/stable/c/bcf86c01ca4676316557dd482c8416ece8c2e143 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-40540 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-43890)Record last updated .