Към съдържанието

CVE-2026-89724: Linux

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: media: vicodec: fix out-of-bounds write in FWHT encoder vidioc_s_fmt_vid_out() sizes the encoder CAPTURE buffer from the compressed descriptor pixfmt_fwht, whose sizeimage_mult is 3: coded_w * coded_h * 3 + sizeof(struct fwht_cframe_hdr). fwht_encode_frame() encodes one plane per component, and an incompressible plane takes the FWHT_FRAME_UNENCODED path in encode_plane(), copying the plane verbatim. For a 4-component pixel format all four planes are full resolution (width_div == height_div == 1), so a frame that forces every plane through the unencoded fallback writes sizeof(struct fwht_cframe_hdr) + 4 * coded_w * coded_h bytes, overrunning the plane by coded_w * coded_h, which can result in corruption of adjacent kernel heap memory. Bump pixfmt_fwht.sizeimage_mult from 3 to 4, matching the largest components_num among the supported raw formats, so the capture buffer is always large enough for the unencoded fallback.

    Засегнати продукти

    • Linux Linux: 16ecf6dff97ce0194a7126e26159492668d47a7e преди f7ae26c100a6c26c2a166d2c41e73188067b36bd; 16ecf6dff97ce0194a7126e26159492668d47a7e преди 6ea647e76c44387d5c1c635df4604c2154d9060e; 16ecf6dff97ce0194a7126e26159492668d47a7e преди d40838a63f2bd6a3df0a6cdd8ff1d5c6366e8fff; 16ecf6dff97ce0194a7126e26159492668d47a7e преди e21cccc29b840930cd9dcfdf1139658063a681af; 16ecf6dff97ce0194a7126e26159492668d47a7e преди 84cfebf7f4229d748cca8eb9c4e1f1c4099d3ab7; 16ecf6dff97ce0194a7126e26159492668d47a7e преди 8c14472431e27f13661d0db9d837156eaced0ecb; 16ecf6dff97ce0194a7126e26159492668d47a7e преди b95315ffc66b39856396c1043618bb4e4d5785ba; 16ecf6dff97ce0194a7126e26159492668d47a7e преди cf4500ebf6fb57bf4ab83c3dd349a40257dbe2a9
    • Linux Linux: 5.0; преди 5.0; 5.10.270 до 5.10.*; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

    История

    • 11 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-89724: Linux | freedomonline.bg