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Medium severity5.5NVD Advisory· Published Jun 24, 2026· Updated Jul 14, 2026

CVE-2026-52985

CVE-2026-52985

Description

In the Linux kernel, the following vulnerability has been resolved:

netdevsim: zero initialize struct iphdr in dummy sk_buff

Syzbot reports a KMSAN uninit-value originating from nsim_dev_trap_skb_build, with the allocation also being performed in the same function.

Fix this by calling skb_put_zero instead of skb_put to guarantee zero initialization of the whole IP header.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • Linux/Kernel3 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=5.4,<5.10.258
    • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
    • (no CPE)
  • osv-coords
    pkg:linux/kernel
    Range: >= 5.4.0, < 5.10.258

Patches

Vulnerability mechanics

References

8

News mentions

0

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