5.5

CVE-2025-38693

media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar

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

media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar

In w7090p_tuner_write_serpar, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add
check on msg[0].len to prevent crash.

Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.39 < 5.4.297
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.241
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.190
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.149
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.103
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.43
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.11
Linux ≫ Linux Kernel Version >= 6.16 < 6.16.2
Debian ≫ Debian Linux Version11.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.054
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 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-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3
Patch
https://git.kernel.org/stable/c/b3d77a3fc71c084575d3df4ec6544b3fb6ce587d
https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665
Patch
https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a
Patch
https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59
Patch
https://git.kernel.org/stable/c/f98132a59ccc59a8b97987363bc99c8968934756
Patch
https://git.kernel.org/stable/c/99690a494d91a0dc86cebd628da4c62c40552bcb
Patch
https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554
Patch
https://git.kernel.org/stable/c/ed0234c8458b3149f15e496b48a1c9874dd24a1b
Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Third Party Advisory
https://cert-portal.siemens.com/productcert/html/ssa-032379.html