CVE-2026-23076: Linux, грешка в паметта

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Fix potential OOB access in audio mixer handling In the audio mixer handling code of ctxfi driver, the conf field is used as a kind of loop index, and it's referred in the index callbacks (amixer_index() and sum_index()). As spotted recently by fuzzers, the current code causes OOB access at those functions. | UBSAN: array-index-out-of-bounds in /build/reproducible-path/linux-6.17.8/sound/pci/ctxfi/ctamixer.c:347:48 | index 8 is out of range for type 'unsigned char [8]' After the analysis, the cause was found to be the lack of the proper (re-)initialization of conj field. This patch addresses those OOB accesses by adding the proper initializations of the loop indices.

Засегнати продукти

• Linux Linux: 8cc72361481f00253f1e468ade5795427386d593 преди 6524205326e0c1a21263b5c14e48e14ef7e449ae; 8cc72361481f00253f1e468ade5795427386d593 преди afca7ff5d5d4d63a1acb95461f55ca9a729feedf; 8cc72361481f00253f1e468ade5795427386d593 преди 8c1d09806e1441bc6a54b9a4f2818918046d5174; 8cc72361481f00253f1e468ade5795427386d593 преди a8c42d11b0526a89192bd2f79facb4c60c8a1f38; 8cc72361481f00253f1e468ade5795427386d593 преди d77ba72558cd66704f0fb7e0969f697e87c0f71c; 8cc72361481f00253f1e468ade5795427386d593 преди 873e2360d247eeee642878fcc3398babff7e387c; 8cc72361481f00253f1e468ade5795427386d593 преди 61006c540cbdedea83b05577dc7fb7fa18fe1276
• Linux Linux: 2.6.31; преди 2.6.31; 5.10.249 до 5.10.*; 5.15.199 до 5.15.*; 6.1.162 до 6.1.*; 6.6.122 до 6.6.*; 6.12.68 до 6.12.*; 6.18.8 до 6.18.*; от 6.19 нататък

Вид слабост

• CWE-125 Четене извън границите на буфера

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-2026-23076
• https://nvd.nist.gov/vuln/detail/CVE-2026-23076
• https://git.kernel.org/stable/c/6524205326e0c1a21263b5c14e48e14ef7e449ae
• https://git.kernel.org/stable/c/afca7ff5d5d4d63a1acb95461f55ca9a729feedf
• https://git.kernel.org/stable/c/8c1d09806e1441bc6a54b9a4f2818918046d5174
• https://git.kernel.org/stable/c/a8c42d11b0526a89192bd2f79facb4c60c8a1f38
• https://git.kernel.org/stable/c/d77ba72558cd66704f0fb7e0969f697e87c0f71c
• https://git.kernel.org/stable/c/873e2360d247eeee642878fcc3398babff7e387c
• https://git.kernel.org/stable/c/61006c540cbdedea83b05577dc7fb7fa18fe1276