CVE-2024-50262bpf: Fix out-of-bounds write in trie_get_next_key()
- 7.8HighCVSS base score
- 0.27%Exploitation in 30 daysEPSS · top 81% 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: 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.
Timeline
ID reserved
By Linux
- 19 days later
· 19 days later
Published
- 24 months later
· 24 months 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 |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected b471f2f1de8b816f1e799b80aa92588f3566e4bd – < e8494ac079814a53fbc2258d2743e720907488ed
- affected b471f2f1de8b816f1e799b80aa92588f3566e4bd – < 91afbc0eb3c90258ae378ae3c6ead3d2371e926d
- affected b471f2f1de8b816f1e799b80aa92588f3566e4bd – < 590976f921723d53ac199c01d5b7b73a94875e68
- affected b471f2f1de8b816f1e799b80aa92588f3566e4bd – < 86c8ebe02d8806dd8878d0063e8e185622ab6ea6
- affected b471f2f1de8b816f1e799b80aa92588f3566e4bd – < a035df0b98df424559fd383e8e1a268f422ea2ba
- affected b471f2f1de8b816f1e799b80aa92588f3566e4bd – < 90a6e0e1e151ef7a9282e78f54c3091de2dcc99c
- affected b471f2f1de8b816f1e799b80aa92588f3566e4bd – < c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980
- affected b471f2f1de8b816f1e799b80aa92588f3566e4bd – < 13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21
- affected 4.16
- unaffected < 4.16
- unaffected 4.19.323 – ≤ 4.19.*
- unaffected 5.4.285 – ≤ 5.4.*
- unaffected 5.10.229 – ≤ 5.10.*
- unaffected 5.15.171 – ≤ 5.15.*
- unaffected 6.1.116 – ≤ 6.1.*
- unaffected 6.6.60 – ≤ 6.6.*
- unaffected 6.11.7 – ≤ 6.11.*
- unaffected 6.12 – ≤ *
References
References13
- https://git.kernel.org/stable/c/e8494ac079814a53fbc2258d2743e720907488ed (opens in a new tab)
- https://git.kernel.org/stable/c/91afbc0eb3c90258ae378ae3c6ead3d2371e926d (opens in a new tab)
- https://git.kernel.org/stable/c/590976f921723d53ac199c01d5b7b73a94875e68 (opens in a new tab)
- https://git.kernel.org/stable/c/86c8ebe02d8806dd8878d0063e8e185622ab6ea6 (opens in a new tab)
- https://git.kernel.org/stable/c/a035df0b98df424559fd383e8e1a268f422ea2ba (opens in a new tab)
- https://git.kernel.org/stable/c/90a6e0e1e151ef7a9282e78f54c3091de2dcc99c (opens in a new tab)
- https://git.kernel.org/stable/c/c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980 (opens in a new tab)
- https://git.kernel.org/stable/c/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-398330.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-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-2024-45169 (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-2024-50262)Record last updated .