CVE-2026-98086: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: ALSA: ump: do not touch legacy_rmidi before it exists snd_ump_parse_endpoint() sets ump->parsed on every exit, including error, before the caller attaches the legacy rawmidi device. ump_handle_ep_name_msg() then treats parsed as "legacy_rmidi is live" and calls ump_legacy_set_rawmidi_name(), which snprintf()s into ump->legacy_rmidi->name. If a UMP packet arrives in that window (IRQ path from snd_ump_receive), legacy_rmidi is still NULL (KASAN null-ptr-deref in snprintf). Guard the legacy helpers. parsed only means endpoint info was parsed, not that legacy_rmidi exists.

Засегнати продукти

• Linux Linux: 37e0e14128e0685267dc5c037bf655421a6ce2ea преди d6f9af093dc91dac8848a01e417b8109c651c0b2; 37e0e14128e0685267dc5c037bf655421a6ce2ea преди 1c8e01792adf91879322f1ad752f1814de8b7e7d; 37e0e14128e0685267dc5c037bf655421a6ce2ea преди 228075f31b141395233218712242913125ace4e0; 37e0e14128e0685267dc5c037bf655421a6ce2ea преди a4cef20cd473e0640fefd38094d4baac0ec76ae3; 37e0e14128e0685267dc5c037bf655421a6ce2ea преди adeee7187694719890aaffdc14b7e89cfd736f1d
• Linux Linux: 6.5; преди 6.5; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98086
• https://nvd.nist.gov/vuln/detail/CVE-2026-98086
• https://git.kernel.org/stable/c/d6f9af093dc91dac8848a01e417b8109c651c0b2
• https://git.kernel.org/stable/c/1c8e01792adf91879322f1ad752f1814de8b7e7d
• https://git.kernel.org/stable/c/228075f31b141395233218712242913125ace4e0
• https://git.kernel.org/stable/c/a4cef20cd473e0640fefd38094d4baac0ec76ae3
• https://git.kernel.org/stable/c/adeee7187694719890aaffdc14b7e89cfd736f1d