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CVE-2026-53194: Linux, грешка в паметта

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.

CVE радар: още уязвимости от този вид

  • Експлоатация: няма данни за експлоатация
  • Атаката не може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: USB: serial: kl5kusb105: fix bulk-out buffer overflow klsi_105_prepare_write_buffer() is called by the generic write path with the bulk-out buffer and its size (bulk_out_size, 64 bytes). It stores a two-byte length header at the start of the buffer and copies the payload from the write fifo starting at buf + KLSI_HDR_LEN, but passes the full buffer size as the number of bytes to copy: count = kfifo_out_locked(&port->write_fifo, buf + KLSI_HDR_LEN, size, &port->lock); When the fifo holds at least size bytes, size bytes are copied starting two bytes into the size-byte buffer, writing KLSI_HDR_LEN bytes past its end. Copy at most size - KLSI_HDR_LEN bytes instead, leaving room for the header as safe_serial already does. Writing bulk_out_size or more bytes to the tty triggers a slab out-of-bounds write, observed with KASAN by emulating the device with dummy_hcd and raw-gadget: BUG: KASAN: slab-out-of-bounds in kfifo_copy_out+0x83/0xc0 Write of size 64 at addr ffff888112c62202 by task python3 kfifo_copy_out klsi_105_prepare_write_buffer [kl5kusb105] usb_serial_generic_write_start [usbserial] Allocated by task 139: usb_serial_probe [usbserial] The buggy address is located 2 bytes inside of allocated 64-byte region The out-of-bounds write no longer occurs with this change applied.

Засегнати продукти

  • Linux Linux: 60b3013cdaf3fa8a17243ca46b19db3cbe08d943 преди 60af1fd82983c26604102e63a3fcc822c186cceb; 60b3013cdaf3fa8a17243ca46b19db3cbe08d943 преди 0a57320f71941d4e0b1307453c9a1f0939afe666; 60b3013cdaf3fa8a17243ca46b19db3cbe08d943 преди 14147b7963685957839c76ba8094924e22777d79; 60b3013cdaf3fa8a17243ca46b19db3cbe08d943 преди a1288cd700f721c1a119c4f1e8efa234e59caada; 60b3013cdaf3fa8a17243ca46b19db3cbe08d943 преди 70d86e355c564b5510fde61361df014f5476c83e; 60b3013cdaf3fa8a17243ca46b19db3cbe08d943 преди 372f33ebed747d91870f57c0a2e62884a870bffa; 60b3013cdaf3fa8a17243ca46b19db3cbe08d943 преди bde742b076cbe26ecc89c8c68c76ae076a524d02; 60b3013cdaf3fa8a17243ca46b19db3cbe08d943 преди 96d47e40bf9db4a9efd5c8fb53287a508d165f14
  • Linux Linux: 2.6.35; преди 2.6.35; 5.10.259 до 5.10.*; 5.15.210 до 5.15.*; 6.1.176 до 6.1.*; 6.6.143 до 6.6.*; 6.12.94 до 6.12.*; 6.18.36 до 6.18.*; 7.0.13 до 7.0.*; от 7.1 нататък
  • Red Hat: още 5 продукта, добавени от Red Hat

    Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9

Вид слабост

История

  • 25 юни 2026 Публикувано

Други уязвимости в Linux Linux

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