Description
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()")
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
713d54a8bd812229410a1902cd9b332a2a27af9f to < 7a41ecfc3415ebe3b4c44f96b3337691dcf431a3affected713d54a8bd812229410a1902cd9b332a2a27af9f to < b3d77a3fc71c084575d3df4ec6544b3fb6ce587daffected713d54a8bd812229410a1902cd9b332a2a27af9f to < 17b30e5ded062bd74f8ca6f317e1d415a8680665affected713d54a8bd812229410a1902cd9b332a2a27af9f to < 454a443eaa792c8865c861a282fe6d4f596abc3aaffected713d54a8bd812229410a1902cd9b332a2a27af9f to < 6bbaec6a036940e22318f0454b50b8000845ab59affected713d54a8bd812229410a1902cd9b332a2a27af9f to < f98132a59ccc59a8b97987363bc99c8968934756affected713d54a8bd812229410a1902cd9b332a2a27af9f to < 99690a494d91a0dc86cebd628da4c62c40552bcbaffected713d54a8bd812229410a1902cd9b332a2a27af9f to < 39b06b93f24dff923c4183d564ed28c039150554affected713d54a8bd812229410a1902cd9b332a2a27af9f to < ed0234c8458b3149f15e496b48a1c9874dd24a1baffected
Linux Linux
Default version status: affected
2.6.39affected0 to < 2.6.39unaffected5.4.297 to ≤ 5.4.*unaffected5.10.241 to ≤ 5.10.*unaffected5.15.190 to ≤ 5.15.*unaffected6.1.149 to ≤ 6.1.*unaffected6.6.103 to ≤ 6.6.*unaffected6.12.43 to ≤ 6.12.*unaffected6.15.11 to ≤ 6.15.*unaffected6.16.2 to ≤ 6.16.*unaffected6.17 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3 ↗
- https://git.kernel.org/stable/c/b3d77a3fc71c084575d3df4ec6544b3fb6ce587d ↗
- https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665 ↗
- https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a ↗
- https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59 ↗
- https://git.kernel.org/stable/c/f98132a59ccc59a8b97987363bc99c8968934756 ↗
- https://git.kernel.org/stable/c/99690a494d91a0dc86cebd628da4c62c40552bcb ↗
- https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554 ↗
- https://git.kernel.org/stable/c/ed0234c8458b3149f15e496b48a1c9874dd24a1b ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html ↗