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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 0.19% · P9

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 4976b718c3551faba2c0616ef55ebeb74db1c5ca< 1c53d16b174dd9e02243fc0e85089e2aa6a0d21a affected
4976b718c3551faba2c0616ef55ebeb74db1c5ca< 72a85e9464a5332fb2cd7efd26d9295275ceda2d affected
5.10 affected
< 5.10 unaffected
7.1.5≤ 7.1.* unaffected
7.2≤ * unaffected
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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 ~ 1c53d16b174dd9e02243fc0e85089e2aa6a0d21a -
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 (2)

Same Patch Batch · Linux · 2026-08-15 · 845 CVEs total

CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
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-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72463 9.8 CRITICAL xfrm: Fix dev use-after-free in xfrm async resumption
CVE-2026-72248 9.8 CRITICAL netfilter: flowtable: support IPIP tunnel with direct xmit
CVE-2026-72381 9.8 CRITICAL ksmbd: fix use-after-free of fp->owner.name in durable handle owner check
CVE-2026-72477 9.8 CRITICAL fs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-72473 9.8 CRITICAL xprtrdma: Decouple req recycling from RPC completion
CVE-2026-72472 9.8 CRITICAL nfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-74406 9.8 CRITICAL vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().
CVE-2026-72222 9.8 CRITICAL sunrpc: pin svc_xprt across the asynchronous TLS handshake callback
CVE-2026-74401 9.8 CRITICAL dlm: fix add msg handle in send_queue ordered
CVE-2026-72137 9.8 CRITICAL xfrm: nat_keepalive: avoid double free on send error
CVE-2026-74376 9.8 CRITICAL md/raid10: reset read_slot when reusing r10bio for discard
CVE-2026-72130 9.8 CRITICAL nvmet-auth: reject short AUTH_RECEIVE buffers

Showing top 20 of 845 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72402

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