{"id":"CVE-2025-38693","summary":"media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar\n\nIn 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\ncheck on msg[0].len to prevent crash.\n\nSimilar commit: commit 0ed554fd769a (\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")","modified":"2026-05-18T05:58:07.158593056Z","published":"2025-09-04T15:32:46.726Z","related":["SUSE-SU-2025:03600-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20851-1","SUSE-SU-2025:20861-1","SUSE-SU-2025:20870-1","SUSE-SU-2025:20898-1","SUSE-SU-2025:21074-1","SUSE-SU-2025:21139-1","SUSE-SU-2025:21179-1","SUSE-SU-2025:3751-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4141-1","openSUSE-SU-2025:20081-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38693.json"},"references":[{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/html/ssa-032379.html"},{"type":"WEB","url":"https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665"},{"type":"WEB","url":"https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554"},{"type":"WEB","url":"https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/99690a494d91a0dc86cebd628da4c62c40552bcb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b3d77a3fc71c084575d3df4ec6544b3fb6ce587d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ed0234c8458b3149f15e496b48a1c9874dd24a1b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f98132a59ccc59a8b97987363bc99c8968934756"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38693.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38693"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"713d54a8bd812229410a1902cd9b332a2a27af9f"},{"fixed":"7a41ecfc3415ebe3b4c44f96b3337691dcf431a3"},{"fixed":"b3d77a3fc71c084575d3df4ec6544b3fb6ce587d"},{"fixed":"17b30e5ded062bd74f8ca6f317e1d415a8680665"},{"fixed":"454a443eaa792c8865c861a282fe6d4f596abc3a"},{"fixed":"6bbaec6a036940e22318f0454b50b8000845ab59"},{"fixed":"f98132a59ccc59a8b97987363bc99c8968934756"},{"fixed":"99690a494d91a0dc86cebd628da4c62c40552bcb"},{"fixed":"39b06b93f24dff923c4183d564ed28c039150554"},{"fixed":"ed0234c8458b3149f15e496b48a1c9874dd24a1b"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38693.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.39"},{"fixed":"5.4.297"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.241"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.190"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.149"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.103"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.43"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.15.11"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.16.0"},{"fixed":"6.16.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38693.json"}}],"schema_version":"1.7.5"}