CVE-2026-89866: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Resume device before setting EOS flag Setting the EOS flag talks to the firmware via send_firmware_command(), which accesses VPU registers. Both the STREAMOFF path (wave5_vpu_dec_job_abort()) and the V4L2_DEC_CMD_STOP path (wave5_vpu_dec_stop()) can run while the device is runtime suspended, so those register accesses hit powered-down hardware and the SoC raises an asynchronous SError, panicking the kernel: SError Interrupt on CPU3, code 0x00000000bf000000 -- SError send_firmware_command+0x2c/0x160 [wave5] wave5_vpu_dec_set_bitstream_flag+0x6c/0x80 [wave5] wave5_vpu_dec_update_bitstream_buffer+0x80/0xec [wave5] wave5_vpu_dec_job_abort+0x44/0xa0 [wave5] v4l2_m2m_cancel_job+0x110/0x19c [v4l2_mem2mem] v4l2_m2m_streamoff+0x24/0x140 [v4l2_mem2mem] Resume the device with pm_runtime_resume_and_get() around the EOS firmware command and release it with pm_runtime_put_autosuspend(), matching the runtime PM handling already done in wave5_vpu_dec_device_run().

Засегнати продукти

• Linux Linux: 9707a6254a8a6b978bde811a44fe07d86c229d1c преди 56c2c5ad35614ca5ae23838d6af5d7f59e3124dc; 9707a6254a8a6b978bde811a44fe07d86c229d1c преди 2215e55ee1e5e69ad53862d968360c5aa63dd3a7; 9707a6254a8a6b978bde811a44fe07d86c229d1c преди a52e6f7923c17a672135b485ffd96fbd72f46267
• Linux Linux: 6.8; преди 6.8; 6.18.57 до 6.18.*; 7.2.5 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-89866
• https://nvd.nist.gov/vuln/detail/CVE-2026-89866
• https://git.kernel.org/stable/c/56c2c5ad35614ca5ae23838d6af5d7f59e3124dc
• https://git.kernel.org/stable/c/2215e55ee1e5e69ad53862d968360c5aa63dd3a7
• https://git.kernel.org/stable/c/a52e6f7923c17a672135b485ffd96fbd72f46267