CVE-2024-43890tracing: Fix overflow in get_free_elt()
Updated under an hour ago ()
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It affects Linux and 5 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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".
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 08d43a5fa063e03c860f2f391a30c388bcbc948e before 302ceb625d7b990db205a15e371f9a71238de91c; from 08d43a5fa063e03c860f2f391a30c388bcbc948e before d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18; from 08d43a5fa063e03c860f2f391a30c388bcbc948e before eb223bf01e688dfe37e813c8988ee11c8c9f8d0a; from 08d43a5fa063e03c860f2f391a30c388bcbc948e before cd10d186a5409a1fe6e976df82858e9773a698da; from 08d43a5fa063e03c860f2f391a30c388bcbc948e before 788ea62499b3c18541fd6d621964d8fafbc4aec5; from 08d43a5fa063e03c860f2f391a30c388bcbc948e before a172c7b22bc2feaf489cfc6d6865f7237134fdf8; from 08d43a5fa063e03c860f2f391a30c388bcbc948e before 236bb4690773ab6869b40bedc7bc8d889e36f9d6; from 08d43a5fa063e03c860f2f391a30c388bcbc948e before bcf86c01ca4676316557dd482c8416ece8c2e143 | CNA record |
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name) | before V3.1 | CISA ADP |
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name) | all versions not affected | CISA ADP |
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name) | before V3.1 | CISA ADP |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1.1 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.7 before 4.19.320; from 4.20 before 5.4.282; from 5.5 before 5.10.224; from 5.11 before 5.15.165; from 5.16 before 6.1.105; from 6.2 before 6.6.46; from 6.7 before 6.10.5; 6.11; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/302ceb625d7b990db205a15e371f9a71238de91cpatch
- https://git.kernel.org/stable/c/d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18patch
- https://git.kernel.org/stable/c/eb223bf01e688dfe37e813c8988ee11c8c9f8d0apatch
- https://git.kernel.org/stable/c/cd10d186a5409a1fe6e976df82858e9773a698dapatch
- https://git.kernel.org/stable/c/788ea62499b3c18541fd6d621964d8fafbc4aec5patch
- https://git.kernel.org/stable/c/a172c7b22bc2feaf489cfc6d6865f7237134fdf8patch
- https://git.kernel.org/stable/c/236bb4690773ab6869b40bedc7bc8d889e36f9d6patch
- https://git.kernel.org/stable/c/bcf86c01ca4676316557dd482c8416ece8c2e143patch
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.