CVE-2024-50262bpf: Fix out-of-bounds write in trie_get_next_key()
Updated under an hour ago ()
Does this affect you?
It affects Linux and 8 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- 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 b471f2f1de8b816f1e799b80aa92588f3566e4bd before e8494ac079814a53fbc2258d2743e720907488ed; from b471f2f1de8b816f1e799b80aa92588f3566e4bd before 91afbc0eb3c90258ae378ae3c6ead3d2371e926d; from b471f2f1de8b816f1e799b80aa92588f3566e4bd before 590976f921723d53ac199c01d5b7b73a94875e68; from b471f2f1de8b816f1e799b80aa92588f3566e4bd before 86c8ebe02d8806dd8878d0063e8e185622ab6ea6; from b471f2f1de8b816f1e799b80aa92588f3566e4bd before a035df0b98df424559fd383e8e1a268f422ea2ba; from b471f2f1de8b816f1e799b80aa92588f3566e4bd before 90a6e0e1e151ef7a9282e78f54c3091de2dcc99c; from b471f2f1de8b816f1e799b80aa92588f3566e4bd before c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980; from b471f2f1de8b816f1e799b80aa92588f3566e4bd before 13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | 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 |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name) | before V3.2 | 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) | before V3.2 | CISA ADP |
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name) | before V3.2 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.16 before 4.19.323; from 4.20 before 5.4.285; from 5.5 before 5.10.229; from 5.11 before 5.15.171; from 5.16 before 6.1.116; from 6.2 before 6.6.60; from 6.7 before 6.11.7; 6.12; and 4 more ranges | NVD |
References
- https://git.kernel.org/stable/c/e8494ac079814a53fbc2258d2743e720907488edpatch
- https://git.kernel.org/stable/c/91afbc0eb3c90258ae378ae3c6ead3d2371e926dpatch
- https://git.kernel.org/stable/c/590976f921723d53ac199c01d5b7b73a94875e68patch
- https://git.kernel.org/stable/c/86c8ebe02d8806dd8878d0063e8e185622ab6ea6patch
- https://git.kernel.org/stable/c/a035df0b98df424559fd383e8e1a268f422ea2bapatch
- https://git.kernel.org/stable/c/90a6e0e1e151ef7a9282e78f54c3091de2dcc99cpatch
- https://git.kernel.org/stable/c/c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980patch
- https://git.kernel.org/stable/c/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.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-398330.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.