CVE-2025-39742: fallo en Linux
RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()
Publicada el · Actualizada el
3Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackepss 0.2%
probabilidad de explotación
0.2%top 93% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()
The function divides number of online CPUs by num_core_siblings, and
later checks the divider by zero. This implies a possibility to get
and divide-by-zero runtime error. Fix it by moving the check prior to
division. This also helps to save one indentation level.
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
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Referencias
https://cert-portal.siemens.com/productcert/html/ssa-032379.htmlhttps://git.kernel.org/stable/c/1a7cf828ed861de5be1aff99e10f114b363c19d3https://git.kernel.org/stable/c/31d0599a23efdbfe579bfbd1eb8f8c942f13744dhttps://git.kernel.org/stable/c/4b4317b0d758ff92ba96f4e448a8992a6fe607bfhttps://git.kernel.org/stable/c/59f7d2138591ef8f0e4e4ab5f1ab674e8181ad3ahttps://git.kernel.org/stable/c/89fdac333a17ed990b41565630ef4791782e02f5https://git.kernel.org/stable/c/9b05e91afe948ed819bf87d7ba0fccf451ed79a6https://git.kernel.org/stable/c/9bba1a9994c523b44db64f63b564b4719ea2b7efhttps://git.kernel.org/stable/c/9d3211cb61a0773a2440d0a0698c1e6e7429f907https://git.kernel.org/stable/c/ac53f377393cc85156afdc90b636e84e544a6f96https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html