media: dvb-core: fix wrong reinitialization of ringbuffer on reopen

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-23253 · Microsoft / collected KEV context

cve-program · CVE-2026-23253

• https://git.kernel.org/stable/c/527cfa8a3486b3555c5c15e2f62be484a11398dc
• https://git.kernel.org/stable/c/fb378cf89be434ed1f10ab79cc4788fba8ae868d
• https://git.kernel.org/stable/c/f1e520ca2e83ece6731af6167c9e5e16931ecba0
• https://git.kernel.org/stable/c/af050ab44fa1b1897a940d7d756e512232f5e5df
• https://git.kernel.org/stable/c/d71781bad59b1c9d60d7068004581f9bf19c0c9d
• https://git.kernel.org/stable/c/cfd94642025e6f71c8f754bdec0800ee95e4f3dd
• https://git.kernel.org/stable/c/32eb8e4adc207ef31bc6e5ae56bab940b0176066
• https://git.kernel.org/stable/c/bfbc0b5b32a8f28ce284add619bf226716a59bc0

No related operational record is retained in the current change model.