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CVE-2026-72402— bpf: Mask pseudo pointer values in verifier logs

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于BPF验证器日志对ldimm64指令中伪指针值的屏蔽不完整，仅覆盖BPF_PSEUDO_MAP_FD和BPF_PSEUDO_MAP_VALUE，而BPF_PSEUDO_MAP_IDX、BPF_PSEUDO_MAP_IDX_VALUE和BPF_PSEUDO_BTF_ID等类型可能被解析为内核指针地址，导致内核指针信息泄露。

AI Predicted 3.3 Difficulty: Trivial EPSS 0.21% · P11

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 4976b718c3551faba2c0616ef55ebeb74db1c5ca< b767a5d7c6cb595f9feb00b5af96191a59efca26 affected
4976b718c3551faba2c0616ef55ebeb74db1c5ca< 6181239115e19cda4b483a2604193a9379cbd28f affected
4976b718c3551faba2c0616ef55ebeb74db1c5ca< c727b3d50ecb0f4992a964360771040a84026914 affected
4976b718c3551faba2c0616ef55ebeb74db1c5ca< b96cb1235fcaa687291b1e1d910f0930d1939919 affected
4976b718c3551faba2c0616ef55ebeb74db1c5ca< 1c53d16b174dd9e02243fc0e85089e2aa6a0d21a affected
4976b718c3551faba2c0616ef55ebeb74db1c5ca< 72a85e9464a5332fb2cd7efd26d9295275ceda2d affected
5.10 affected
< 5.10 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-72402

Vulnerability Information
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Vulnerability Title
bpf: Mask pseudo pointer values in verifier logs
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Mask pseudo pointer values in verifier logs print_bpf_insn() masks ldimm64 immediates for pointer-bearing pseudo sources when pointer leaks are not allowed, but the mask only covers BPF_PSEUDO_MAP_FD and BPF_PSEUDO_MAP_VALUE. BPF_PSEUDO_MAP_IDX, BPF_PSEUDO_MAP_IDX_VALUE, and BPF_PSEUDO_BTF_ID can also be resolved to kernel pointer values before the verifier log prints the instruction. Include them in the existing pointer classification so the log prints 0x0 instead of the rewritten address.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于BPF验证器日志对ldimm64指令中伪指针值的屏蔽不完整，仅覆盖BPF_PSEUDO_MAP_FD和BPF_PSEUDO_MAP_VALUE，而BPF_PSEUDO_MAP_IDX、BPF_PSEUDO_MAP_IDX_VALUE和BPF_PSEUDO_BTF_ID等类型可能被解析为内核指针地址，导致内核指针信息泄露。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 4976b718c3551faba2c0616ef55ebeb74db1c5ca ~ b767a5d7c6cb595f9feb00b5af96191a59efca26 -
Linux Linux 5.10 -

II. Public POCs for CVE-2026-72402

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III. Intelligence Information for CVE-2026-72402

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Patches & Fixes for CVE-2026-72402 (4)

Other References for CVE-2026-72402 (2)

Same Patch Batch · Linux · 2026-08-15 · 844 CVEs total

CVE-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72319 9.8 CRITICAL ipvs: ensure inner headers in ICMP errors are in headroom
CVE-2026-72220 9.8 CRITICAL sunrpc: harden rq_procinfo lifecycle to prevent double-free
CVE-2026-72217 9.8 CRITICAL SUNRPC: Bound-check xdr_buf_to_bvec() stores before writing
CVE-2026-74384 9.8 CRITICAL nvme-multipath: fix flex array size in struct nvme_ns_head
CVE-2026-72299 9.8 CRITICAL tipc: restrict socket queue dumps in enqueue tracepoints
CVE-2026-72210 9.8 CRITICAL ntfs: fix off-by-one in mapping pairs decoding bounds checks
CVE-2026-72211 9.8 CRITICAL ntfs: grow index root value before reparent header update
CVE-2026-72317 9.8 CRITICAL SUNRPC: pin upper rpc_clnt across the TLS connect_worker
CVE-2026-72209 9.8 CRITICAL ntfs: validate attribute values on lookup
CVE-2026-74268 9.8 CRITICAL tcp: clear sock_ops cb flags before force-closing a child socket
CVE-2026-72207 9.8 CRITICAL ntfs: not change 0-byte $DATA attribute to non-resident
CVE-2026-74267 9.8 CRITICAL net/sched: sch_codel: Do not call qdisc_tree_reduce_backlog during peek before restoring q

Showing top 20 of 844 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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