5.5

CVE-2026-52985

netdevsim: zero initialize struct iphdr in dummy sk_buff

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.4 < 5.10.258
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.209
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.175
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.141
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.91
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.33
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.10
Linux ≫ Linux Kernel Version7.1 Updaterc1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.024
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-908 Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

https://git.kernel.org/stable/c/175556c049eaec14efde8c6475e763b7579b9de7
Patch
https://git.kernel.org/stable/c/6e2cfd0904976e701d7a76b86b694e72af230ab0
Patch
https://git.kernel.org/stable/c/1b7b6ae0e93b8d512e208b1378d74af052e4f4e7
Patch
https://git.kernel.org/stable/c/818f7673ed7f4a29d4b9cee8184c47d6e57162b4
Patch
https://git.kernel.org/stable/c/978ca6ff789f1f19c03288ac20cc1f4774e88490
Patch
https://git.kernel.org/stable/c/750d0091bebf44975421268d37484ef87060d263
Patch
https://git.kernel.org/stable/c/bc6002865e8c4fcf9e94975f7cf023448d8764e2
Patch
https://git.kernel.org/stable/c/35eaa6d8d6c2ee65e96f507add856e0eacf24591
Patch