CVE-2026-52985In 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_bui…
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-908
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 5.4 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.141; from 6.7 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10; 7.1 | NVD |
References
- https://git.kernel.org/stable/c/175556c049eaec14efde8c6475e763b7579b9de7patch
- https://git.kernel.org/stable/c/1b7b6ae0e93b8d512e208b1378d74af052e4f4e7patch
- https://git.kernel.org/stable/c/35eaa6d8d6c2ee65e96f507add856e0eacf24591patch
- https://git.kernel.org/stable/c/6e2cfd0904976e701d7a76b86b694e72af230ab0patch
- https://git.kernel.org/stable/c/750d0091bebf44975421268d37484ef87060d263patch
- https://git.kernel.org/stable/c/818f7673ed7f4a29d4b9cee8184c47d6e57162b4patch
- https://git.kernel.org/stable/c/978ca6ff789f1f19c03288ac20cc1f4774e88490patch
- https://git.kernel.org/stable/c/bc6002865e8c4fcf9e94975f7cf023448d8764e2patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.