CVE-2025-38162— netfilter: nft_set_pipapo: prevent overflow in lookup table allocation
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 12
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 3c4287f62044a90e73a561aa05fc46e62da173da< 91edc076439c9e2f34b176149f1c84a47a8ec32f | affected |
3c4287f62044a90e73a561aa05fc46e62da173da< a9e757473561da93c6a4136f0e59aba91ec777fc | affected | ||
3c4287f62044a90e73a561aa05fc46e62da173da< c1360ac8156c0a3f2385baef91d8d26fd9d39701 | affected | ||
3c4287f62044a90e73a561aa05fc46e62da173da< 43fe1181f738295624696ae9ff611790edb65b5e | affected | ||
3c4287f62044a90e73a561aa05fc46e62da173da< 4c5c6aa9967dbe55bd017bb509885928d0f31206 | affected | ||
5.6 | affected | ||
< 5.6 | unaffected | ||
6.1.167≤ 6.1.* | unaffected | ||
| … +4 more rows | |||
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I. Basic Information for CVE-2025-38162
Vulnerability Information
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Vulnerability Title
netfilter: nft_set_pipapo: prevent overflow in lookup table allocation
Source: NVD (National Vulnerability Database)
Vulnerability Description
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().
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查乘法溢出，可能导致缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-38162
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2025-38162 (1)
Same Patch Batch · Linux · 2025-07-03 · 78 CVEs total
| CVE-2025-38128 | Bluetooth: MGMT: reject malformed HCI_CMD_SYNC commands | |
| CVE-2025-38126 | net: stmmac: make sure that ptp_rate is not 0 before configuring timestamping | |
| CVE-2025-38113 | ACPI: CPPC: Fix NULL pointer dereference when nosmp is used | |
| CVE-2025-38125 | net: stmmac: make sure that ptp_rate is not 0 before configuring EST | |
| CVE-2025-38124 | net: fix udp gso skb_segment after pull from frag_list | |
| CVE-2025-38127 | ice: fix Tx scheduler error handling in XDP callback | |
| CVE-2025-38129 | page_pool: Fix use-after-free in page_pool_recycle_in_ring | |
| CVE-2025-38130 | drm/connector: only call HDMI audio helper plugged cb if non-null | |
| CVE-2025-38131 | coresight: prevent deactivate active config while enabling the config | |
| CVE-2025-38132 | coresight: holding cscfg_csdev_lock while removing cscfg from csdev | |
| CVE-2025-38122 | gve: add missing NULL check for gve_alloc_pending_packet() in TX DQO | |
| CVE-2025-38123 | net: wwan: t7xx: Fix napi rx poll issue | |
| CVE-2025-38121 | wifi: iwlwifi: mld: avoid panic on init failure | |
| CVE-2025-38119 | scsi: core: ufs: Fix a hang in the error handler | |
| CVE-2025-38120 | netfilter: nf_set_pipapo_avx2: fix initial map fill | |
| CVE-2025-38118 | Bluetooth: MGMT: Fix UAF on mgmt_remove_adv_monitor_complete | |
| CVE-2025-38117 | Bluetooth: MGMT: Protect mgmt_pending list with its own lock | |
| CVE-2025-38115 | net_sched: sch_sfq: fix a potential crash on gso_skb handling | |
| CVE-2025-38116 | wifi: ath12k: fix uaf in ath12k_core_init() | |
| CVE-2025-38114 | e1000: Move cancel_work_sync to avoid deadlock |
Showing top 20 of 78 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46331
net/sched: fix pedit partial COW leading to page cache corru - CVE-2026-52907
media: rockchip: rkcif: fix off by one bugs - CVE-2026-52906
9p: fix access mode flags being ORed instead of replaced - CVE-2026-52905
mm/damon/core: disallow non-power of two min_region_sz on da - CVE-2026-52904
drm/nouveau: fix nvkm_device leak on aperture removal failur
Same vendor: Linux
- CVE-2026-46331
net/sched: fix pedit partial COW leading to page cache corru - CVE-2026-52907
media: rockchip: rkcif: fix off by one bugs - CVE-2026-52906
9p: fix access mode flags being ORed instead of replaced - CVE-2026-52905
mm/damon/core: disallow non-power of two min_region_sz on da - CVE-2026-52904
drm/nouveau: fix nvkm_device leak on aperture removal failur
V. Comments for CVE-2025-38162
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