CVE-2025-38162
- Source
- https://cve.org/CVERecord?id=CVE-2025-38162
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38162.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-38162
- Downstream
- Related
- Published
- 2025-07-03T08:36:03Z
- Modified
- 2026-09-09T03:30:21Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- netfilter: nft_set_pipapo: prevent overflow in lookup table allocation
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_pipapo: prevent overflow in lookup table allocation
When calculating the lookup table size, ensure the following multiplication does not overflow:
- desc->field_len[] maximum value is U8_MAX multiplied by NFT_PIPAPO_GROUPS_PER_BYTE(f) that can be 2, worst case.
- NFT_PIPAPO_BUCKETS(f->bb) is 2^8, worst case.
- sizeof(unsigned long), from sizeof(*f->lt), lt in struct nft_pipapo_field.
Then, use check_mul_overflow() to multiply by bucket size and then use check_add_overflow() to the alignment for avx2 (if needed). Finally, add lt_size_check_overflow() helper and use it to consolidate this.
While at it, replace leftover allocation using the GFP_KERNEL to GFP_KERNEL_ACCOUNT for consistency, in pipapo_resize().
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38162.json" }- References
-
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://git.kernel.org/stable/c/43fe1181f738295624696ae9ff611790edb65b5e
- https://git.kernel.org/stable/c/4c5c6aa9967dbe55bd017bb509885928d0f31206
- https://git.kernel.org/stable/c/91edc076439c9e2f34b176149f1c84a47a8ec32f
- https://git.kernel.org/stable/c/a9e757473561da93c6a4136f0e59aba91ec777fc
- https://git.kernel.org/stable/c/c1360ac8156c0a3f2385baef91d8d26fd9d39701
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38162.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-38162
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3c4287f62044a90e73a561aa05fc46e62da173daFixed91edc076439c9e2f34b176149f1c84a47a8ec32fFixeda9e757473561da93c6a4136f0e59aba91ec777fcFixedc1360ac8156c0a3f2385baef91d8d26fd9d39701Fixed43fe1181f738295624696ae9ff611790edb65b5eFixed4c5c6aa9967dbe55bd017bb509885928d0f31206